<p><b>bray</b> 2007-01-16 16:36:03 -0700 (Tue, 16 Jan 2007)</p><p>Update tutorial to Wrfvar 2.2 beta files<br>
</p><hr noshade><pre><font color="gray">Modified: trunk/wrfvar/wg4_website/wrfvar/3dvar_obsproc.htm
===================================================================
--- trunk/wrfvar/wg4_website/wrfvar/3dvar_obsproc.htm 2007-01-16 18:43:37 UTC (rev 29)
+++ trunk/wrfvar/wg4_website/wrfvar/3dvar_obsproc.htm 2007-01-16 23:36:03 UTC (rev 30)
@@ -1 +1 @@
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<div class=Section1>
<h2 style='text-align:justify'><span lang=EN-US style='font-family:Arial;
color:blue'>b. The 3DVAR!
Observation Preprocessor (3DVAR_OBSPROC)</span><span!
lang=EN
-US style='color:blue'><o:p></o:p></span></h2>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>By
this stage you have successfully downloaded the test data for the tutorial and
are ready to run 3DVAR observation preprocessor (3DVAR_OBSPROC). If not, return
to </span><span lang=EN-US style='font-family:Arial;color:blue'><a
href="wrfvar-download.htm">a. Downloading Test Data</a>.</span><span
lang=EN-US style='font-family:Arial'><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>1.
Accessing and compiling the 3DVAR_OBSPROC code</u></b></span><span lang=EN-US><u>
<o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>First,
go to your working directory and!
download the 3DVAR_OBSPROC code from<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><a
href="http://www.mmm.ucar.edu/wrf/src/3DVAR_OBSPROC_v2.1.tar.gz">http://www.mmm.ucar.edu/wrf/src/3DVAR_OBSPROC_v2.1.tar.gz</a>.
<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Once
you have it on your machine, type the following to unzip and untar it:</span><span
lang=EN-US> </span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>gunzip
3DVAR_OBSPROC_v2.1.tar.gz<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>tar
-xvf 3DVAR_OBSPROC_v2.1.tar</b></span><span lang=EN-US> </span></p>
<p style='t!
ext-align:justify'><span lang=EN-US style='font-family:A!
rial'>
;After
this, you should see a directory 3DVAR_OBSPROC_v2.1/ created in your working
directory. If so remove the .tar file<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>rm
3DVAR_OBSPROC_v2.1.tar</b></span><span lang=EN-US style='font-family:Arial'><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>and cd
to this directory:</span><span lang=EN-US> </span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>cd
3DVAR_OBSPROC_v2.1</b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Read
the README file. To compile 3DVAR_OBSPROC, type<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family!
:Arial'><b>make<o:p></o:p></b></span></p>
<p class=MsoNormal><span lang=EN-US style='font-family:Arial'>Once this is
complete (a minute or less on most machines), you can check for the presence of
the 3DVAR_OBSPROC executable by issuing the command (from the 3DVAR_OBSPROC
directory)<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>ls
-l src/3dvar_obs.exe<o:p></o:p></b></span></p>
<p class=MsoPlainText><span lang=EN-US>-rwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 mmm01<span style="mso-spacerun: yes">&nbsp;
</span>system<span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span>591184
May 29<span style="mso-spacerun: yes">&nbsp; </span>2003 src/3dvar_obs.exe*&l!
t;o:p></o:p></span></p>
<p style='tex!
t-align:
justify'><span lang=EN-US style='font-family:Arial'><b><u>2.
Running 3DVAR_OBSPROC</u></b></span><span lang=EN-US><u> <o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>OK, so
now you have compiled 3DVAR_OBSPROC. Before running the 3dvar_obs.exe, create
the namelist file <b><i>namelist.3dvar_obs</i></b></span><span lang=EN-US
style='font-family:Arial'> and edit (see README.namelist for details);<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>cp
namelist.3dvar_obs.wrfvar-tut namelist.3dvar_obs<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>then
edit <b><i>namelist.3dvar_obs</i></b></span&!
gt;<span lang=EN-US style='font-family:
Arial'>.<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>In
this tutorial, all you need to change is the full path to the observation file
(<b>ob.little_r</b></span><span lang=EN-US style='font-family:Arial'>) file,
the grid dimensions (nestix=nestjx=45), and the resolution (dis=200[km]).<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>To run
the 3DVAR_OBSPROC, type<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><i>3dvar_obs.exe
&gt;&amp;! 3dvar_obs.out<o:p></o:p></i></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>3.
Looking at !
3DVAR_OBSPROC output.<o:p></o:p></u></b&g!
t;</s
pan></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Once
the <b><i>3dvar_obs.exe</i></b></span><span lang=EN-US style='font-family:Arial'>
has completed normally, you will have an observation data file: <b><i>obs_gts.3dvar</i></b></span><span
lang=EN-US style='font-family:Arial'>, which will be used as the input to
WRF-Var. Before running WRF-Var, there is a utility to look at the data
distribution for each type of observations.<o:p></o:p></span></p>
<p style='margin-left:.25in;text-align:justify;text-indent:-.25in'><span
lang=EN-US style='font-family:Arial'>1) <b>cd MAP_plot</b></span><span
lang=EN-US style='font-family:Arial'><o:p></o:p></span></p>
<p style='margin-left:.25in;text-align:justify;text-indent:-.25in'><span
lang=EN-US style='font-family:Arial'&g!
t;2) Modify the shell script <b><i>Map.csh</i></b></span><span
lang=EN-US style='font-family:Arial'> to set the time window and full path of
input observation file (obs_gts.3dvar), The dates are 2003010111,2003010112,2003010113;<o:p></o:p></span></p>
<p style='margin-left:.25in;text-align:justify;text-indent:-.25in'><span
lang=EN-US style='font-family:Arial'>3) Type<o:p></o:p></span></p>
<p style='margin-left:.25in;text-align:justify'><span lang=EN-US
style='font-family:Arial'><b>Map.csh<o:p></o:p></b></span></p>
<p style='margin-left:.25in;text-align:justify'><span lang=EN-US
style='font-family:Arial'>the <i>configure.user</i></span><span lang=EN-US
style='font-family:Arial'> will be automatically picked up for your computer
system when you type <b><i>Map.csh</i></b><!
;/span><span lang=EN-US
style='font-family:Arial'>;&l!
t;o:p>
;</o:p></span></p>
<p style='margin-left:.25in;text-align:justify;text-indent:-.25in'><span
lang=EN-US style='font-family:Arial'>4) When the job has completed, you will
have a gmeta file </span><span lang=EN-US style='font-family:Arial;color:blue'><b><i>gmeta.</i></b></span><span
lang=EN-US style='font-family:Arial;color:blue'><i>{analysis_time}</i></span><span
lang=EN-US style='font-family:Arial'><o:p></o:p></span></p>
<p style='margin-left:.25in;text-align:justify'><span lang=EN-US
style='font-family:Arial'>which contains plots of data distribution for each
type of observations contained in the OBS data file: <b><i>obs_gts.3dvar</i></b></span><span
lang=EN-US style='font-family:Arial'>.<span style="mso-spacerun: yes">&nbsp;
</span>To view this, type<o:p></o:p><!
;/span></p>
<p style='margin-left:.25in;text-align:justify'><span lang=EN-US
style='font-family:Arial'><b>idt gmeta.2003010112<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>The
gmeta file illustrates the geographic distribution of sonde observations for
this case. You should see something like the following:<o:p></o:p></span></p>
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<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>4.
Saving necessary file for 3DVAR and clean 3DVAR_OBSPROC<o:p></o:p></u></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>In
this tutorial, we are storing data in a directory defined by the environment
variable $<i>DAT_DIR. </i></span><span lang=EN-US style='font-family:Arial'><span
style="mso-spacerun: yes">&nbsp;</span>Having successfully created your own
observation file <b>(obs_gts.3dvar), </b></span><span lang=EN-US
style='font-family:Arial'>copy it to $<i>DAT_DIR</i></span><span lang=EN-US
style='font-family:Arial'><b> </b></span><span lang=EN-US style='font-family:
Arial'>!
;using the command (from 3DVAR_OBSPROC directory)<o:p>&l!
t;/o:p&g
t;</span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>mv
obs_gts.3dvar $<i>DAT_DIR</i></b></span><span lang=EN-US style='font-family:
Arial'><b>/obs_gts.3dvar.2003010112<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Finally,
to clean up the 3DVAR_OBSPROC directory, type<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>make
clean <o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>5.
What next?</u></b></span><span lang=EN-US><u><o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-fa!
mily:Arial'>OK,
you have now created the observation file and looked at some plots of
observations, now you are ready to move on to WRF-Var:<o:p></o:p></span></p>
<p><span lang=EN-US style='font-family:Arial'><u><a href="wrfvar-setup.htm"><span
style='color:blue'>c) Setting up WRF-Var</span></a></u><o:p></o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
<hr size=2 width="100%" align=center>
</span></div>
<p><span lang=EN-US style='font-family:Arial'><b>Miscellanies:</b></span><span
lang=EN-US> </span></p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US>1)<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbs!
p;&nbsp; </span></span><![endif]><spa!
n
lang=E
N-US>When you run 3dvar_obs.exe, and you did not obtain the file <i>obs_gts.3dvar,
</i></span><span lang=EN-US>please check 3dvar_obs.out file to see where the
program aborted. Usually there is information in this file to tell you what is
wrong;</span></p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US>2)<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US>When you run 3dvar_obs.exe and got an error as <i>'Error in NAMELIST
record 2'</i></span><span lang=EN-US> in 3dvar_obs.out file, please check if
your <i>namelist.3dvar_obs</i></span><span lang=EN-US> file matches with the <i>Makefile</i></span><span
lang=EN-US> settings. Either Your <i>namelist.3dvar_obs<!
;/i></span><span
lang=EN-US> file or <i>Makefile</i></span><span lang=EN-US> need to be
modified, then re-compile and re-run the job; </span></p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US>3)<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US>From the *.diag files, you may find which observation report caused
the job failed;</span></p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US>4)<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US>In most cases, the job failed was caused by incorrect input files
names,!
or the specified analysis time, time window, etc. in namelist!
.3dvar_o
bs;</span></p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US>5)<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US>If users still cannot figure out the troubles, please inform us and
pass us your input files including the namelist file, and printed file
3dvar_obs.out.</span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
<hr size=2 width="100%" align=center>
</span></div>
<p><span lang=EN-US style='font-family:Arial'><b>Trouble Shooting:</b></span><span
lang=EN-US> </span></p>
<p><span lang=EN-US style='font-family:Arial'><b>1. </b></span><span
lang=EN-US style='font-family:Arial'><s!
pan style="mso-spacerun:
yes">&nbsp;</span>If you have questions, ask wrfhelp@ucar.edu.</span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
style='color:windowtext'>&nbsp;</span></p>
<p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
style='font-family:Arial'><a href="wrfvar-tutorial.htm">Return to WRF-Var
Tutorial Page</a></span><span lang=EN-US style='color:windowtext'><o:p></o:p></span></p>
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<div class=Section1>
<h2 style='text-align:justify'><span lang=EN-US style='font-family:Arial;
color:blue'>b. The 3DVAR!
Observation Preprocessor (3DVAR_OBSPROC)</span><span!
lang=EN
-US style='color:blue'><o:p></o:p></span></h2>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>By
this stage you have successfully downloaded the test data for the tutorial and
are ready to run 3DVAR observation preprocessor (3DVAR_OBSPROC). If not, return
to </span><span lang=EN-US style='font-family:Arial;color:blue'><a
href="wrfvar-download.htm">a. Downloading Test Data</a>.</span><span
lang=EN-US style='font-family:Arial'><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>1.
Accessing and compiling the 3DVAR_OBSPROC code</u></b></span><span lang=EN-US><u>
<o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>First,
go to your working directory and!
download the 3DVAR_OBSPROC code from<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><a
href="http://www.mmm.ucar.edu/wrf/src/3DVAR_OBSPROC_v2.2beta.tar.gz">http://www.mmm.ucar.edu/wrf/src/3DVAR_OBSPROC_v2.2beta.tar.gz</a>.
<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Once
you have it on your machine, type the following to unzip and untar it:</span><span
lang=EN-US> </span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>gunzip
3DVAR_OBSPROC_v2.2beta.tar.gz<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>tar
-xvf 3DVAR_OBSPROC_v2.2beta.tar</b></span><span lang=EN-US> </span></p>!
<p style='text-align:justify'><span lang=EN-US styl!
e='font-
family:Arial'>After
this, you should see a directory 3DVAR_OBSPROC/ created in your working
directory. If so remove the .tar file<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>rm
3DVAR_OBSPROC_v2.2beta.tar</b></span><span lang=EN-US style='font-family:Arial'><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>and cd
to this directory:</span><span lang=EN-US> </span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>cd
3DVAR_OBSPROC</b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Read
the README file. To compile 3DVAR_OBSPROC, type<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='f!
ont-family:Arial'><b>make<o:p></o:p></b></span></p>
<p class=MsoNormal><span lang=EN-US style='font-family:Arial'>Once this is
complete (a minute or less on most machines), you can check for the presence of
the 3DVAR_OBSPROC executable by issuing the command (from the 3DVAR_OBSPROC
directory)<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>ls
-l src/3dvar_obs.exe<o:p></o:p></b></span></p>
<p class=MsoPlainText><span lang=EN-US>-rwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 mmm01<span style="mso-spacerun: yes">&nbsp;
</span>system<span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span>591184
May 29<span style="mso-spacerun: yes">&nbsp; </span>2003 src/3dvar_!
obs.exe*<o:p></o:p></span></p>
<p !
style='t
ext-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>2.
Running 3DVAR_OBSPROC</u></b></span><span lang=EN-US><u> <o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>OK, so
now you have compiled 3DVAR_OBSPROC. Before running the 3dvar_obs.exe, create
the namelist file <b><i>namelist.3dvar_obs</i></b></span><span lang=EN-US
style='font-family:Arial'> and edit (see README.namelist for details);<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>cp
namelist.3dvar_obs.wrfvar-tut namelist.3dvar_obs<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>then
edit <b><i>namelist.3dvar_obs</i></b>!
</span><span lang=EN-US style='font-family:
Arial'>.<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>In
this tutorial, all you need to change is the full path to the observation file
(<b>ob.little_r</b></span><span lang=EN-US style='font-family:Arial'>) file,
the grid dimensions (nestix=nestjx=45), and the resolution (dis=200[km]).<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>To run
the 3DVAR_OBSPROC, type<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><i>3dvar_obs.exe
&gt;&amp;! 3dvar_obs.out<o:p></o:p></i></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>3.
L!
ooking at 3DVAR_OBSPROC output.<o:p></o:p></u&g!
t;</b
></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Once
the <b><i>3dvar_obs.exe</i></b></span><span lang=EN-US style='font-family:Arial'>
has completed normally, you will have an observation data file: <b><i>obs_gts.3dvar</i></b></span><span
lang=EN-US style='font-family:Arial'>, which will be used as the input to
WRF-Var. Before running WRF-Var, there is a utility to look at the data
distribution for each type of observations.<o:p></o:p></span></p>
<p style='margin-left:.25in;text-align:justify;text-indent:-.25in'><span
lang=EN-US style='font-family:Arial'>1) <b>cd MAP_plot</b></span><span
lang=EN-US style='font-family:Arial'><o:p></o:p></span></p>
<p style='margin-left:.25in;text-align:justify;text-indent:-.25in'><span
lang=EN-US style='font-famil!
y:Arial'>2) Modify the shell script <b><i>Map.csh</i></b></span><span
lang=EN-US style='font-family:Arial'> to set the time window and full path of
input observation file (obs_gts.3dvar), The dates are 2003010111,2003010112,2003010113;<o:p></o:p></span></p>
<p style='margin-left:.25in;text-align:justify;text-indent:-.25in'><span
lang=EN-US style='font-family:Arial'>3) Type<o:p></o:p></span></p>
<p style='margin-left:.25in;text-align:justify'><span lang=EN-US
style='font-family:Arial'><b>Map.csh<o:p></o:p></b></span></p>
<p style='margin-left:.25in;text-align:justify'><span lang=EN-US
style='font-family:Arial'>the <i>configure.user</i></span><span lang=EN-US
style='font-family:Arial'> will be automatically picked up for your computer
system when you type <b><i>Map.csh</i><!
;/b></span><span lang=EN-US
style='font-family:Ari!
al'>;
<o:p></o:p></span></p>
<p style='margin-left:.25in;text-align:justify;text-indent:-.25in'><span
lang=EN-US style='font-family:Arial'>4) When the job has completed, you will
have a gmeta file </span><span lang=EN-US style='font-family:Arial;color:blue'><b><i>gmeta.</i></b></span><span
lang=EN-US style='font-family:Arial;color:blue'><i>{analysis_time}</i></span><span
lang=EN-US style='font-family:Arial'><o:p></o:p></span></p>
<p style='margin-left:.25in;text-align:justify'><span lang=EN-US
style='font-family:Arial'>which contains plots of data distribution for each
type of observations contained in the OBS data file: <b><i>obs_gts.3dvar</i></b></span><span
lang=EN-US style='font-family:Arial'>.<span style="mso-spacerun: yes">&nbsp;
</span>To view this, type<o:p></!
o:p></span></p>
<p style='margin-left:.25in;text-align:justify'><span lang=EN-US
style='font-family:Arial'><b>idt gmeta.2003010112<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>The
gmeta file illustrates the geographic distribution of sonde observations for
this case. You should see something like the following:<o:p></o:p></span></p>
<p align=center style='text-align:center'><span lang=EN-US style='font-family:
Arial'><!--[if gte vml 1]><v:shapetype id="_x0000_t75" coordsize="21600,21600"
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<v:f eqn="if lineDrawn pixelLineWidth 0"/>
<v:f eqn="sum @0 1 !
0"/>
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<v!
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quot;prod @2 1 2"/>
<v:f eqn="prod @3 21600 pixelWidth"/>
<v:f eqn="prod @3 21600 pixelHeight"/>
<v:f eqn="sum @0 0 1"/>
<v:f eqn="prod @6 1 2"/>
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<v:f eqn="sum @8 21600 0"/>
<v:f eqn="prod @7 21600 pixelHeight"/>
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shapes="_x0000_i1028"><![endif]><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>4.
Saving necessary file for 3DVAR and clean 3DVAR_OBSPROC<o:p></o:p></u></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>In
this tutorial, we are storing data in a directory defined by the environment
variable $<i>DAT_DIR. </i></span><span lang=EN-US style='font-family:Arial'><span
style="mso-spacerun: yes">&nbsp;</span>Having successfully created your own
observation file <b>(obs_gts.3dvar), </b></span><span lang=EN-US
style='font-family:Arial'>copy it to $<i>DAT_DIR</i></span><span lang=EN-US
style='font-family:Arial'><b> </b></span><span lang=EN-US style='font-family:!
Arial'>using the command (from 3DVAR_OBSPROC directory)<!
;o:p>
</o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>mv
obs_gts.3dvar $<i>DAT_DIR</i></b></span><span lang=EN-US style='font-family:
Arial'><b>/obs_gts.3dvar.2003010112<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Finally,
to clean up the 3DVAR_OBSPROC directory, type<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>make
clean <o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>5.
What next?</u></b></span><span lang=EN-US><u><o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US styl!
e='font-family:Arial'>OK,
you have now created the observation file and looked at some plots of
observations, now you are ready to move on to WRF-Var:<o:p></o:p></span></p>
<p><span lang=EN-US style='font-family:Arial'><u><a href="wrfvar-setup.htm"><span
style='color:blue'>c) Setting up WRF-Var</span></a></u><o:p></o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
<hr size=2 width="100%" align=center>
</span></div>
<p><span lang=EN-US style='font-family:Arial'><b>Miscellanies:</b></span><span
lang=EN-US> </span></p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US>1)<span
style='font:7.0pt "Times New Roman"'>&nbs!
p;&nbsp;&nbsp; </span></span><![endif]&!
gt;<s
pan
lang=EN-US>When you run 3dvar_obs.exe, and you did not obtain the file <i>obs_gts.3dvar,
</i></span><span lang=EN-US>please check 3dvar_obs.out file to see where the
program aborted. Usually there is information in this file to tell you what is
wrong;</span></p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US>2)<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US>When you run 3dvar_obs.exe and got an error as <i>'Error in NAMELIST
record 2'</i></span><span lang=EN-US> in 3dvar_obs.out file, please check if
your <i>namelist.3dvar_obs</i></span><span lang=EN-US> file matches with the <i>Makefile</i></span><span
lang=EN-US> settings. Either Your <i>namelist.3d!
var_obs</i></span><span
lang=EN-US> file or <i>Makefile</i></span><span lang=EN-US> need to be
modified, then re-compile and re-run the job; </span></p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US>3)<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US>From the *.diag files, you may find which observation report caused
the job failed;</span></p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US>4)<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US>In most cases, the job failed was caused by incorrect input fi!
les
names, or the specified analysis time, time window, etc. i!
n nameli
st.3dvar_obs;</span></p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US>5)<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US>If users still cannot figure out the troubles, please inform us and
pass us your input files including the namelist file, and printed file
3dvar_obs.out.</span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
<hr size=2 width="100%" align=center>
</span></div>
<p><span lang=EN-US style='font-family:Arial'><b>Trouble Shooting:</b></span><span
lang=EN-US> </span></p>
<p><span lang=EN-US style='font-family:Arial'><b>1. </b></span><span
lang=EN-US style='font-family:Arial!
'><span style="mso-spacerun:
yes">&nbsp;</span>If you have questions, ask wrfhelp@ucar.edu.</span></p>
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<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
style='color:windowtext'>&nbsp;</span></p>
<p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
style='font-family:Arial'><a href="wrfvar-tutorial.htm">Return to WRF-Var
Tutorial Page</a></span><span lang=EN-US style='color:windowtext'><o:p></o:p></span></p>
</div>
</body>
</html>
\ No newline at end of file
Deleted: trunk/wrfvar/wg4_website/wrfvar/wrfvar-download.html
===================================================================
--- trunk/wrfvar/wg4_website/wrfvar/wrfvar-download.html 2007-01-16 18:43:37 UTC (rev 29)
+++ trunk/wrfvar/wg4_website/wrfvar/wrfvar-download.html 2007-01-16 23:36:03 UTC (rev 30)
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-<div class="Section1"><br>
-<p style="text-align: justify;"><b><span
- style="font-size: 18pt; font-family: Arial; color: blue;">a.
-Downloading Test
-Data<o:p></o:p></span></b></p>
-<span style="font-family: arial;"><span style="font-weight: bold;"><br>
-</span></span>
-<p style="text-align: justify;"><span style="font-family: Arial;">This
-page
-describes how to access test datasets required to run WRF 3D-Var. If
-you don't
-know anything about 3D-Var, you should first read the Introduction
-section.</span></p>
-<p style="text-align: justify;"><span style="font-family: Arial;"><o:p></o:p></span></p>
-<p style="text-align: justify;"><b><u><span style="font-family: Arial;">i.
-Required
-Data</span></u></b><u><o:p></o:p></u></p>
-<p style="text-align: justify;"><span style="font-family: Arial;">The
-3D-Var system
-requires three input files to run: a) The first guess &#8211; a) WRF input
-format file
-output from either the SI (cold-start) or WRF itself (warm-start), b)
-Observations (in BUFR or ASCII little_r format), and c) A background
-error statistics file
-(containing background error covariances currently calculated via the
-&#8220;NMC-method"). The use of these three data files in 3D-Var is described
-later in
-the tutorial.<o:p></o:p></span></p>
-<p style="text-align: justify;"><span style="font-family: Arial;">The
-following
-table summarizes the above info:<o:p></o:p></span></p>
-<div align="center">
-<table border="1" cellspacing="0" cellpadding="0"
- style="border: medium none ; margin-left: 5.4pt; border-collapse: collapse;">
- <tbody>
- <tr style="height: 13.8pt;">
- <td width="164" valign="top"
- style="border: 0.5pt solid windowtext; padding: 0in 5.4pt; width: 122.65pt; height: 13.8pt;">
- <p align="center" style="text-align: center;"><i><span
- style="font-family: Arial; color: blue;">Filename<o:p></o:p></span></i></p>
- </td>
- <td width="197" valign="top"
- style="border-style: solid solid solid none; border-width: 0.5pt 0.5pt 0.5pt medium; border-top: 0.5pt solid windowtext; border-right: 0.5pt solid windowtext; border-bottom: 0.5pt solid windowtext; padding: 0in 5.4pt; width: 148.05pt; height: 13.8pt;">
- <p align="center" style="text-align: center;"><i><span
- style="font-family: Arial; color: blue;">Created By<o:p></o:p></span></i></p>
- </td>
- <td width="215" valign="top"
- style="border-style: solid solid solid none; border-width: 0.5pt 0.5pt 0.5pt medium; border-top: 0.5pt solid windowtext; border-right: 0.5pt solid windowtext; border-bottom: 0.5pt solid windowtext; padding: 0in 5.4pt; width: 161.3pt; height: 13.8pt;">
- <p align="center" style="text-align: center;"><i><span
- style="font-family: Arial; color: blue;">Used In<o:p></o:p></span></i></p>
- </td>
- </tr>
- <tr style="height: 27.4pt;">
- <td width="164" valign="top"
- style="border-style: none solid solid; border-width: medium 0.5pt 0.5pt; border-left: 0.5pt solid windowtext; border-right: 0.5pt solid windowtext; border-bottom: 0.5pt solid windowtext; padding: 0in 5.4pt; width: 122.65pt; height: 27.4pt;">
- <p align="center" style="text-align: center;"><b><span
- style="font-family: Arial;">fg<o:p></o:p></span></b></p>
- </td>
- <td width="197" valign="top"
- style="border-style: none solid solid none; border-width: medium 0.5pt 0.5pt medium; border-right: 0.5pt solid windowtext; border-bottom: 0.5pt solid windowtext; padding: 0in 5.4pt; width: 148.05pt; height: 27.4pt;">
- <p align="center" style="text-align: center;"><span
- style="font-family: Arial;">SI / WRF<o:p></o:p></span></p>
- </td>
- <td width="215" valign="top"
- style="border-style: none solid solid none; border-width: medium 0.5pt 0.5pt medium; border-right: 0.5pt solid windowtext; border-bottom: 0.5pt solid windowtext; padding: 0in 5.4pt; width: 161.3pt; height: 27.4pt;">
- <p align="center" style="text-align: center;"><span
- style="font-family: Arial;">3D-Var<o:p></o:p></span></p>
- </td>
- </tr>
- <tr style="height: 13.8pt;">
- <td width="164" valign="top"
- style="border-style: none solid solid; border-width: medium 0.5pt 0.5pt; border-left: 0.5pt solid windowtext; border-right: 0.5pt solid windowtext; border-bottom: 0.5pt solid windowtext; padding: 0in 5.4pt; width: 122.65pt; height: 13.8pt;">
- <p align="center" style="text-align: center;"><b><span
- style="font-family: Arial;">ob<o:p></o:p></span></b></p>
- </td>
- <td width="197" valign="top"
- style="border-style: none solid solid none; border-width: medium 0.5pt 0.5pt medium; border-right: 0.5pt solid windowtext; border-bottom: 0.5pt solid windowtext; padding: 0in 5.4pt; width: 148.05pt; height: 13.8pt;">
- <p align="center" style="text-align: center;"><span
- style="font-family: Arial;">Observation Preprocessor<o:p></o:p></span></p>
- </td>
- <td width="215" valign="top"
- style="border-style: none solid solid none; border-width: medium 0.5pt 0.5pt medium; border-right: 0.5pt solid windowtext; border-bottom: 0.5pt solid windowtext; padding: 0in 5.4pt; width: 161.3pt; height: 13.8pt;">
- <p align="center" style="text-align: center;"><span
- style="font-family: Arial;">3D-Var<o:p></o:p></span></p>
- </td>
- </tr>
- <tr style="height: 14.55pt;">
- <td width="164" valign="top"
- style="border-style: none solid solid; border-width: medium 0.5pt 0.5pt; border-left: 0.5pt solid windowtext; border-right: 0.5pt solid windowtext; border-bottom: 0.5pt solid windowtext; padding: 0in 5.4pt; width: 122.65pt; height: 14.55pt;">
- <p align="center" style="text-align: center;"><b><span
- style="font-family: Arial;">be<o:p></o:p></span></b></p>
- </td>
- <td width="197" valign="top"
- style="border-style: none solid solid none; border-width: medium 0.5pt 0.5pt medium; border-right: 0.5pt solid windowtext; border-bottom: 0.5pt solid windowtext; padding: 0in 5.4pt; width: 148.05pt; height: 14.55pt;">
- <p align="center" style="text-align: center;"><span
- style="font-family: Arial;">NMC_STATS code<o:p></o:p></span></p>
- </td>
- <td width="215" valign="top"
- style="border-style: none solid solid none; border-width: medium 0.5pt 0.5pt medium; border-right: 0.5pt solid windowtext; border-bottom: 0.5pt solid windowtext; padding: 0in 5.4pt; width: 161.3pt; height: 14.55pt;">
- <p align="center" style="text-align: center;"><span
- style="font-family: Arial;">3D-Var<o:p></o:p></span></p>
- </td>
- </tr>
- </tbody>
-</table>
-</div>
-<p style="text-align: justify;"><span style="font-family: Arial;">In
-the online tutorial,
-example <b>ob, fg</b>, and <b>be</b> files are given. In your own
-work after
-the tutorial, you will need to create the input data sets yourselves.<o:p></o:p></span></p>
-<p style="text-align: justify;"><b><u><span style="font-family: Arial;">ii.
-Downloading Test Data</span></u></b><u> <o:p></o:p></u></p>
-<p style="text-align: justify;"><span style="font-family: Arial;">In
-the oniline tutorial,
-we will store data in a directory defined by the environment variable $<i>DAT_DIR</i>
-and run 3D-Var in a directory defined by the environment variable $<i>RUN_DIR</i>.
-It is OK to set them equal if you wish. These directories can be in any
-location that can be read and written to from your current machine and
-which
-have at least 200MB of memory available (for this test case, may be
-more for
-other cases).<span style="">&nbsp; </span>To set these
-variables, type<o:p></o:p></span></p>
-<p style="text-align: justify;"><b><span style="font-family: Arial;">setenv
-DAT_DIR
-dat_dir<o:p></o:p></span></b></p>
-<p style="text-align: justify;"><b><span style="font-family: Arial;">setenv
-RUN_DIR
-run_dir<o:p></o:p></span></b></p>
-<p style="text-align: justify;"><span style="font-family: Arial;">where
-dat_dir and
-run_dir are your chosen directories. Create these directories (if they
-don&#8217;t
-already exist) and type<o:p></o:p></span></p>
-<p style="text-align: justify;"><b><span style="font-family: Arial;">cd
-$DAT_DIR<o:p></o:p></span></b></p>
-<p style="text-align: justify;"><span style="font-family: Arial;">Download
-the <a
- href="http://www.mmm.ucar.edu/wrf/src/data/wrf3dvar_data.tar.gz">tutorial
-test data</a> from the web-page for our standard case (3<sup>rd</sup>
-August 2003). Once you have
-downloaded the <i>wrf3dvar_data.tar.gz</i> file to <i>$DAT_DIR</i>,
-then
-extract it by typing<o:p></o:p></span></p>
-<p style="text-align: justify;"><b><span style="font-family: Arial;">gunzip
-wrf3dvar_data.tar.gz<o:p></o:p></span></b></p>
-<p style="text-align: justify;"><b><span style="font-family: Arial;">tar
--xvf wrf3dvar_data.tar</span></b>
-</p>
-<p style="text-align: justify;"><span style="font-family: Arial;">You
-should then
-see the <b>be, fg, ob and ob.little_endian</b> data files in directory
-$DAT_DIR<b>.
-</b>Two observation files are supplied: <b>ob </b>for big_endian
-machines (e.g.
-IBM, SGI) and <b>ob.little_endian </b>for little endian machines
-(e.g. DEC,
-Linux).<b> </b>To save space type<o:p></o:p></span></p>
-<p style="text-align: justify;"><b><span style="font-family: Arial;">rm
-wrf3dvar_data.tar</span></b>
-</p>
-<p style="text-align: justify;"><b><u><span style="font-family: Arial;">iii.
-What
-next?</span></u></b><u><o:p></o:p></u></p>
-<p style="text-align: justify;"><span style="font-family: Arial;">OK,
-now you&#8217;ve
-downloaded the necessary data, you&#8217;re ready to set up 3D-Var. Go to <o:p></o:p></span></p>
-<p><span style="font-family: Arial;"><a
- href="http://www.mmm.ucar.edu/wrf/WG4/tutorial/wrf3dvar_setup.htm">b.
-Setting
-up 3D-Var</a><o:p></o:p></span></p>
-<div class="MsoNormal" align="center" style="text-align: center;"><span
- style="font-family: Arial; color: windowtext;">
-<hr size="2" width="100%" align="center"></span></div>
-<p><b><span style="font-family: Arial;">Trouble Shooting:</span></b><span
- style="font-family: Arial;"> <o:p></o:p></span></p>
-<p><b><span style="font-family: Arial;">1. </span></b><span
- style="font-family: Arial;">Having trouble, ask <a
- href="mailto:wrfhelp@wrf-model.org"><span
- style="font-family: &quot;Times New Roman&quot;;">mailto:wrfhelp@wrf-model.org</span></a>.<b><o:p></o:p></b></span></p>
-<div class="MsoNormal" align="center" style="text-align: center;">
-<hr size="2" width="100%" align="center"></div>
-<p class="MsoNormal" align="center" style="text-align: center;"><!--[if !supportEmptyParas]-->&nbsp;<!--[endif]--><o:p></o:p></p>
-<p class="MsoNormal" align="center" style="text-align: center;"><span
- style="font-family: Arial;"><a
- href="http://www.mmm.ucar.edu/wrf/WG4/tutorial/wrf3dvar_tutorial.htm">Return
-to
-WRF 3D-Var Tutorial Page</a><o:p></o:p></span></p>
-</div>
-</body>
-</html>
Modified: trunk/wrfvar/wg4_website/wrfvar/wrfvar-setup.htm
===================================================================
--- trunk/wrfvar/wg4_website/wrfvar/wrfvar-setup.htm 2007-01-16 18:43:37 UTC (rev 29)
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<div class=Section1>
<p style='text-align:justify'><s!
pan lang=EN-US style='font-size:18.0pt;
font-family:Arial;color:blue'><b>c. Setting up WRF-Var<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>In
this part of the tutorial you will download and compile the WRF-Var code. A
description of the script that controls the running of WRF-Var and an overview
of the namelist that it creates is also given.<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>i.
Accessing WRF-Var code</u></b></span><span lang=EN-US><u> <o:p></o:p></u></span></p>
<p style='text-align:just!
ify'><span lang=EN-US style='font-family:Arial'>First!
,
go to
your working directory and download the WRF-Var code from<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><a
href="http://www.mmm.ucar.edu/wrf/src/wrfvar_v2.1.tar.gz">http://www.mmm.ucar.edu/wrf/src/wrfvar_v2.1.tar.gz</a><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Once
you have it on your machine, type the following to unzip and untar it:</span><span
lang=EN-US> </span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>gunzip
wrfvar_v2.1.tar.gz<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>tar
-xvf wrfvar_v2.1.tar</b></span><span lang=EN-US> </span></p>
<p style='text-align:j!
ustify'><span lang=EN-US style='font-family:Arial'>After
this, you should see a program directory wrfvar/ created in your working
directory. If so, tidy up with the command<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>rm
wrfvar_v2.1.tar<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>cd to
the wrfvar directory:</span><span lang=EN-US> </span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>cd
wrfvar_v2.1</b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>and
you should see something like the following files and subdirectories listed
(may be slightly different depending on version used):</span><span lang=EN-US> </span><!
;/p>
<p style='text-align:justify'><span lang=EN-!
US style
='font-family:Arial'><b>ls
-l <o:p></o:p></b></span></p>
<p class=MsoPlainText><span lang=EN-US>total 160<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>-rw-r--r--<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp; </span>15895 11 Jul 14:39
Makefile<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>-rw-r--r--<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>7189<span
style="mso-spacerun: yes">&nbsp; </span>4 Feb 07:40 README&!
lt;o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>-rw-r--r--<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>7263 11 Jul
14:39 README.NMM<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>-rw-r--r--<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>2548 18
Jan<span style="mso-spacerun: yes">&nbsp; </span>2005 README_test_cases<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-sp!
acerun:
yes">&nbsp;&nbsp; </span>3 dmbar!
ker<s
pan style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 Registry<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 arch<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 chem<o:p></o:p></span></p>!
;
<p class=MsoPlainText><span lang=EN-US>-rwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1656 15 Apr
11:45 clean<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>-rwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>7225 25 Jul
09:48 compile<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>-rwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 dmbarker<span style="mso-spacerun: yes">&nbsp;
</!
span>users<span style="mso-spacerun: yes">&!
amp;nbsp
; </span>10664 25 Jul 18:49
configure<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>7 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul 08:55
convertor<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>6 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 da_3dvar<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&n!
bsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 dyn_em<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 dyn_exp<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>2048 27 Jul
08:55 dyn_nmm<o:p!
></o:p></span></p>
<p class=MsoPlainT!
ext>&
lt;span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp; </span>14 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 external<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 frame<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spa!
cerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 gen_be<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 inc<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 main<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes!
">&nbsp;&nbsp; </span>3 dmbarker<span!
style=&
quot;mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>2048 27 Jul
08:55 phys<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>4 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:56 run<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 scripts<o:p></o:p></span></p>
<p clas!
s=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>2048 27 Jul
08:55 share<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp; </span>12 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 test<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>4 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span sty!
le="mso-spacerun: yes">&nbsp;&nbsp; </!
span>
2048 27 Jul
08:55 tools<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>ii.
Compiling WRF-Var</u></b></span><span lang=EN-US><u><o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>To
begin the compilation of WRF-Var, type the following to see the options
available to you:<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>configure<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>You
will then be queried with something lik!
e the following:<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>service01:&gt;configure<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>option =<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>Please type : &lt;configure var&gt; to
compile var,<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp; </span>or type : &lt;configure be&gt; to compile be.<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>The
two choices refer to creating compiler opti!
ons for WRF-Var, or alternatively to
begin setting up the calc!
ulation
of background error statistics. Here, we wish
to compile WRF-Var, and so type<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>configure
var<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>You
will then see a list of alternative compilation options, depending on whether
you want to run single processor, with different compilers etc, e.g.<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>option = var<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>configure var<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>checking for perl5... no<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>checking for perl..!
. found
/usr/local/bin/perl (perl)<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>Will use NETCDF in dir:
/usr/local/netcdf<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>PHDF5 not set in environment. Will
configure WRF for use without.<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>option = var<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>configure for var<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>------------------------------------------------------------------<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-!
US style='font-size:10.0pt;
font-family:"Courier New"!
;'>Pl
ease select from among the following supported
platforms.<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New"'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New"'> 1. Settings for PC Linux i486 i586 i686, PGI compiler (Single-threaded)
<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New"'>2. Settings for PC Linux i486 i586 i686, PGI compiler (RSL, MPICH, RSL IO)
<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New"'>3. Intel xeon i686 ia32 Xeon Linux, ifort com!
piler (single-threaded, no nesting)
<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New"'>Enter selection [1-3] :<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>In the
online tutorial, you will be running WRF-Var in single processor mode.
Therefore enter <b>1</b></span><span lang=EN-US style='font-family:Arial'>
(single-threaded) at the prompt. This will automatically create a file <i>configure.defaults_wrfvar</i></span><span
lang=EN-US style='font-family:Arial'> in the wrfvar/arch subdirectory. This
sets up compile options etc ready for compilation. We recommend you run WRF-Var
in single processor mode first, but you later want to run WRF-Var on
distributed memory machines to really speed things up.<o:p></o:p></spa!
n></p>
<p style='text-align:justify'><span !
lang=EN-
US style='font-family:Arial'>Check
the WRF-Var configure file has been produced by typing<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>ls
-l configure.wrf<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Browse
the file if interested, then to compile WRF-Var type<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>compile
var<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Once
this is complete, you can check for the presence of the WRF-Var executable by
issuing the command (from the wrfvar directory)<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US styl!
e='font-family:Arial'><b>ls
-l main/wrfvar.exe<o:p></o:p></b></span></p>
<p class=MsoPlainText style='text-align:justify'><span lang=EN-US>-rwxr-xr-x&nbsp;&nbsp;
1 dmbarker users&nbsp;&nbsp;11045892 May 29&nbsp; 2003 main/wrfvar.exe</span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>While
you are waiting for compilation to finish, we suggest you read the following
sections to acquaint yourself with how you are going to run WRF-Var.<b><u><o:p></o:p></u></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>iii.
The DA_Run_WRF-Var.csh script.</u></b></span><span lang=EN-US><u> <o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:!
Arial'>The
WRF-Var system is run (don't do this yet in the !
online t
utorial!) from the
standard script <i>wrfvar/run/DA_Run_WRF-Var.csh</i></span><span lang=EN-US
style='font-family:Arial'>. An example ca be seen at<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><span
style="mso-spacerun: yes">&nbsp;</span><a
href="http://www.mmm.ucar.edu/wrf/WG4/wrfvar/DA_Run_WRF-Var.csh.txt">http://www.mmm.ucar.edu/wrf/WG4/wrfvar/DA_Run_WRF-Var.csh.txt</a><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>The
script performs a number of tasks, as follows:<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'>a)<span style='font:7.0pt &!
quot;Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US style='font-family:Arial'>Specify job details via environment
variables: The user should be able, in most cases, to run WRF-Var just by
resetting default environment variables (set below) to values for your
particular application. Examples include changing data directory, filenames,
and particular parameters within WRF (namelist.3dvar) and WRF (namelist.input)
files.<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'>b)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US style='font-family:Arial'>Define default environment variables.
These can be overridden in a)!
by setting non-default values.<o:p></o:p></spa!
n><
;/p>
<p style='margin-left:.5in;text-align:justify;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'>c)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US style='font-family:Arial'>Perform sanity checks (e.g. ensure input
files exist). d) Create 3D-Var namelist file <i>namelist.3dvar</i></span><span
lang=EN-US style='font-family:Arial'><o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'>d)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US style='font-family:Arial'&!
gt;Prepare for assimilation: link, and copy
data/executables to the run<span style="mso-spacerun: yes">&nbsp;
</span>directory.<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'>e)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US style='font-family:Arial'>Create <i>namelist.3dvar</i></span><span
lang=EN-US style='font-family:Arial'> and <i>namelist.input</i></span><span
lang=EN-US style='font-family:Arial'> files from environments specified above.<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'>&l!
t;![if !supportLists]><span lang=EN-US style='font-famil!
y:
Arial
'>f)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Run WRF-Var.<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>A
brief description of the 3D-Var namelist options is now given.<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>iv.
The&nbsp; WRF-Var namelist.3dvar file</u></b></span><span lang=EN-US><u><o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>There
are many options you can change in a data assimilation system:&nbsp;
withholding particular observations, empirically retuning background errors,
changing the!
minimization convergence criteria, etc, etc. To see the current
full list of namelist options, check out the section of DA_Run_WRF-Var.csh that
sets the default values. Not all values are provided with comments. This is
deliberate as we only support changing the values with comments! Feel free to
experiment with the others only if you can support yourself by checking the
code to see what these other options do! <o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>The namelist.3dvar
file created for the tutorial case can be seen at<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><a
href="http://www.mmm.ucar.edu/wrf/WG4/wrfvar/namelist.3dvar.txt">http://www.mmm.ucar.edu/wrf/WG4/wrfvar/namelist.3dvar.txt</a><o:p></o:p></span></p>
<p style='text-align:justify'><!
;span lang=EN-US style='font-family:Arial'><b><u&g!
t;v.
The
&nbsp; WRF namelist.input</u></b></span><span lang=EN-US><u><o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Since
WRF-Var is now a core for the WRF model, it uses the WRF framework to define
and perform parallel, I/O functions. This is fairly transparent in the WRF-Var
code. However, one disadvantage is that WRF-Var now requires one to specify the
grid dimensions at run-time via a file (the previous serial version of MM5
3DVAR would pick these dimensions up from the input file and dynamically
allocate memory). <o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>For
this tutorial, a 45x45x28 200km resolution case-study is used. These grid
dimensions are specified via the default environment variables in the
DA_Run_WRF-Var.csh script. You will need to change these values!
for your own
domains.<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>The
namelist.input file created for the tutorial case can be seen at<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><a
href="http://www.mmm.ucar.edu/wrf/WG4/wrfvar/namelist.input.txt">http://www.mmm.ucar.edu/wrf/WG4/wrfvar/namelist.input.txt</a><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>vi.
What next?</u></b></span><span lang=EN-US><u><o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Having
compiled WRF-Var and familiarized yourself with the script and namelist files,
it's time to run WRF-V!
ar!<o:p></o:p></span></p>
<p style!
='text-a
lign:justify'><span lang=EN-US style='font-family:Arial'><u><a
href="wrfvar-casestudy.htm"><span style='color:blue'>d) Run WRF-Var CONUS Case
Study</span></a></u><o:p></o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
<hr size=2 width="100%" align=center>
</span></div>
<p><span lang=EN-US style='font-family:Arial'><b>Trouble Shooting:</b></span><span
lang=EN-US> </span></p>
<p><span lang=EN-US style='font-family:Arial'><b>1.</b></span><span lang=EN-US
style='font-family:Arial'> If you have questions, ask </span><span lang=EN-US
style='font-family:Arial;color:#000099'><a href="mailto:wrfhelp@wrf-model.org"><span
style='font-family:"Times New Roman"'>wrfhelp@ucar.edu</span><!
/a></span><span
lang=EN-US> </span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal align=center style='text-align:center'><span lang=EN-US><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
style='font-family:Arial'><a href="wrfvar-tutorial.htm">Return to WRF-Var
Tutorial Page</a><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:windowtext'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
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<div class=Section1>
<p style='text-align:justify'><s!
pan lang=EN-US style='font-size:18.0pt;
font-family:Arial;color:blue'><b>c. Setting up WRF-Var<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>In
this part of the tutorial you will download and compile the WRF-Var code. A
description of the script that controls the running of WRF-Var and an overview
of the namelist that it creates is also given.<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>i.
Accessing WRF-Var code</u></b></span><span lang=EN-US><u> <o:p></o:p></u></span></p>
<p style='text-align:just!
ify'><span lang=EN-US style='font-family:Arial'>First!
,
go to
your working directory and download the WRF-Var code from<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><a
href="http://www.mmm.ucar.edu/wrf/src/wrfvar_v2.2beta.tar.gz">http://www.mmm.ucar.edu/wrf/src/wrfvar_v2.2beta.tar.gz</a><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Once
you have it on your machine, type the following to unzip and untar it:</span><span
lang=EN-US> </span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>gunzip
wrfvar_v2.2beta.tar.gz<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>tar
-xvf wrfvar_v2.2beta.tar</b></span><span lang=EN-US> </span></p>
<p sty!
le='text-align:justify'><span lang=EN-US style='font-family:Arial'>After
this, you should see a program directory wrfvar/ created in your working
directory. If so, tidy up with the command<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>rm
wrfvar_v2.2beta.tar<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>cd to
the wrfvar directory:</span><span lang=EN-US> </span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>cd
wrfvar_v2.2beta</b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>and
you should see something like the following files and subdirectories listed
(may be slightly different depending on version used):</span><span lang=EN!
-US> </span></p>
<p style='text-align:justi!
fy'>&
lt;span lang=EN-US style='font-family:Arial'><b>ls
-l <o:p></o:p></b></span></p>
<p class=MsoPlainText><span lang=EN-US>total 160<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>-rw-r--r--<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp; </span>15895 11 Jul 14:39
Makefile<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>-rw-r--r--<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>7189<span
style="mso-spacerun: yes">&nbsp; </spa!
n>4 Feb 07:40 README<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>-rw-r--r--<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>7263 11 Jul
14:39 README.NMM<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>-rw-r--r--<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>2548 18
Jan<span style="mso-spacerun: yes">&nbsp; </span>2005 README_test_cases<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<!
;span style="mso-spacerun:
yes">&nbsp;&nb!
sp; <
/span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 Registry<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 arch<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 chem<o:p></o:p&g!
t;</span></p>
<p class=MsoPlainText><span lang=EN-US>-rwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1656 15 Apr
11:45 clean<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>-rwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>7225 25 Jul
09:48 compile<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>-rwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>1 dmbarker<span style="mso-spacerun: yes&q!
uot;>&nbsp;
</span>users<span style="mso-!
spacerun
: yes">&nbsp; </span>10664 25 Jul 18:49
configure<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>7 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul 08:55
convertor<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>6 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 da_3dvar<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes&q!
uot;>&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 dyn_em<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 dyn_exp<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>2048 27 !
Jul
08:55 dyn_nmm<o:p></o:p></span></p>!
;
<p
class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp; </span>14 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 external<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 frame<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<!
span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 gen_be<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 inc<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 main<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style!
="mso-spacerun:
yes">&nbsp;&nbsp; </sp!
an>3
dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>2048 27 Jul
08:55 phys<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>4 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:56 run<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 scripts<o:p></o:p></span&g!
t;</p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>3 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>2048 27 Jul
08:55 share<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp; </span>12 dmbarker<span style="mso-spacerun: yes">&nbsp;
</span>users<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>1024 27 Jul
08:55 test<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>drwxr-xr-x<span style="mso-spacerun:
yes">&nbsp;&nbsp; </span>4 dmbarker<span style="mso-spacerun: yes">&nbsp;
</s!
pan>users<span style="mso-spacerun: yes">&a!
mp;nbsp;
&nbsp; </span>2048 27 Jul
08:55 tools<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>ii.
Compiling WRF-Var</u></b></span><span lang=EN-US><u><o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>To
begin the compilation of WRF-Var, type the following to see the options
available to you:<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>configure<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>You
will then be qu!
eried with something like the following:<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>service01:&gt;configure<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>option =<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>Please type : &lt;configure var&gt; to
compile var,<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><span style="mso-spacerun:
yes">&nbsp;&nbsp;&nbsp; </span>or type : &lt;configure be&gt; to compile be.<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>The
two choices refer t!
o creating compiler options for WRF-Var, or alternatively to
b!
egin set
ting up the calculation of background error statistics. Here, we wish
to compile WRF-Var, and so type<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>configure
var<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>You
will then see a list of alternative compilation options, depending on whether
you want to run single processor, with different compilers etc, e.g.<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>option = var<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>configure var<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>checking for perl5... no<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-U!
S>checking for perl... found
/usr/local/bin/perl (perl)<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>Will use NETCDF in dir:
/usr/local/netcdf<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>PHDF5 not set in environment. Will
configure WRF for use without.<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>option = var<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>configure for var<o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span lang=EN-US>------------------------------------------------------------------<o:p></o:p></span></p>
<p style='text-align:justi!
fy'><span lang=EN-US style='font-size:10.0pt;
font-famil!
y:"
Courier New"'>Please select from among the following supported
platforms.<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New"'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New"'> 1. Settings for PC Linux i486 i586 i686, PGI compiler (Single-threaded)
<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New"'>2. Settings for PC Linux i486 i586 i686, PGI compiler (RSL, MPICH, RSL IO)
<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New"'>3. Intel xeon i686 ia!
32 Xeon Linux, ifort compiler (single-threaded, no nesting)
<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-size:10.0pt;
font-family:"Courier New"'>Enter selection [1-3] :<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>In the
online tutorial, you will be running WRF-Var in single processor mode.
Therefore enter <b>1</b></span><span lang=EN-US style='font-family:Arial'>
(single-threaded) at the prompt. This will automatically create a file <i>configure.defaults_wrfvar</i></span><span
lang=EN-US style='font-family:Arial'> in the wrfvar/arch subdirectory. This
sets up compile options etc ready for compilation. We recommend you run WRF-Var
in single processor mode first, but you later want to run WRF-Var on
distributed memory machines to really speed things up.<o:p!
></o:p></span></p>
<p style='text-ali!
gn:justi
fy'><span lang=EN-US style='font-family:Arial'>Check
the WRF-Var configure file has been produced by typing<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>ls
-l configure.wrf<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Browse
the file if interested, then to compile WRF-Var type<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>compile
var<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Once
this is complete, you can check for the presence of the WRF-Var executable by
issuing the command (from the wrfvar directory)<o:p></o:p></span></p>
<p style='text-align:justify'>!
<span lang=EN-US style='font-family:Arial'><b>ls
-l main/wrfvar.exe<o:p></o:p></b></span></p>
<p class=MsoPlainText style='text-align:justify'><span lang=EN-US>-rwxr-xr-x&nbsp;&nbsp;
1 dmbarker users&nbsp;&nbsp;11045892 May 29&nbsp; 2003 main/wrfvar.exe</span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>While
you are waiting for compilation to finish, we suggest you read the following
sections to acquaint yourself with how you are going to run WRF-Var.<b><u><o:p></o:p></u></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>iii.
The DA_Run_WRF-Var.csh script.</u></b></span><span lang=EN-US><u> <o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=E!
N-US style='font-family:Arial'>The
WRF-Var system is run (d!
on't do
this yet in the online tutorial!) from the
standard script <i>wrfvar/run/DA_Run_WRF-Var.csh</i></span><span lang=EN-US
style='font-family:Arial'>. An example ca be seen at<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><span
style="mso-spacerun: yes">&nbsp;</span><a
href="http://www.mmm.ucar.edu/wrf/WG4/wrfvar/DA_Run_WRF-Var.csh.txt">http://www.mmm.ucar.edu/wrf/WG4/wrfvar/DA_Run_WRF-Var.csh.txt</a><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>The
script performs a number of tasks, as follows:<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'>a)<!
span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US style='font-family:Arial'>Specify job details via environment
variables: The user should be able, in most cases, to run WRF-Var just by
resetting default environment variables (set below) to values for your
particular application. Examples include changing data directory, filenames,
and particular parameters within WRF (namelist.3dvar) and WRF (namelist.input)
files.<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'>b)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US style='font-family:Arial'>Define default environment variables.
These!
can be overridden in a) by setting non-default values.<o:p!
><
/o:p></span></p>
<p style='margin-left:.5in;text-align:justify;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'>c)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US style='font-family:Arial'>Perform sanity checks (e.g. ensure input
files exist). d) Create 3D-Var namelist file <i>namelist.3dvar</i></span><span
lang=EN-US style='font-family:Arial'><o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'>d)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US st!
yle='font-family:Arial'>Prepare for assimilation: link, and copy
data/executables to the run<span style="mso-spacerun: yes">&nbsp;
</span>directory.<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'>e)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></span><![endif]><span
lang=EN-US style='font-family:Arial'>Create <i>namelist.3dvar</i></span><span
lang=EN-US style='font-family:Arial'> and <i>namelist.input</i></span><span
lang=EN-US style='font-family:Arial'> files from environments specified above.<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify;text-indent:-.25in;mso-list:l0 level1 lfo1;
ta!
b-stops:list .5in'><![if !supportLists]><span lang!
=EN-US s
tyle='font-family:
Arial'>f)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Run WRF-Var.<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>A
brief description of the 3D-Var namelist options is now given.<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>iv.
The&nbsp; WRF-Var namelist.3dvar file</u></b></span><span lang=EN-US><u><o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>There
are many options you can change in a data assimilation system:&nbsp;
withholding particular observations, empirically retuning backgro!
und errors,
changing the minimization convergence criteria, etc, etc. To see the current
full list of namelist options, check out the section of DA_Run_WRF-Var.csh that
sets the default values. Not all values are provided with comments. This is
deliberate as we only support changing the values with comments! Feel free to
experiment with the others only if you can support yourself by checking the
code to see what these other options do! <o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>The namelist.3dvar
file created for the tutorial case can be seen at<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><a
href="http://www.mmm.ucar.edu/wrf/WG4/wrfvar/namelist.3dvar.txt">http://www.mmm.ucar.edu/wrf/WG4/wrfvar/namelist.3dvar.txt</a><o:p></o:p></span></p>
<p style='te!
xt-align:justify'><span lang=EN-US style='font-family:Ar!
ial'>
<b><u>v.
The&nbsp; WRF namelist.input</u></b></span><span lang=EN-US><u><o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Since
WRF-Var is now a core for the WRF model, it uses the WRF framework to define
and perform parallel, I/O functions. This is fairly transparent in the WRF-Var
code. However, one disadvantage is that WRF-Var now requires one to specify the
grid dimensions at run-time via a file (the previous serial version of MM5
3DVAR would pick these dimensions up from the input file and dynamically
allocate memory). <o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>For
this tutorial, a 45x45x28 200km resolution case-study is used. These grid
dimensions are specified via the default environment variables in the
DA_Run_WRF-Var.csh script. You will nee!
d to change these values for your own
domains.<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>The
namelist.input file created for the tutorial case can be seen at<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><a
href="http://www.mmm.ucar.edu/wrf/WG4/wrfvar/namelist.input.txt">http://www.mmm.ucar.edu/wrf/WG4/wrfvar/namelist.input.txt</a><o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>vi.
What next?</u></b></span><span lang=EN-US><u><o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>Having
compiled WRF-Var and familiarized yourself with the script and namelist files!
,
it's time to run WRF-Var!<o:p></o:p></span>!
;</p&
gt;
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><u><a
href="wrfvar-casestudy.htm"><span style='color:blue'>d) Run WRF-Var CONUS Case
Study</span></a></u><o:p></o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
<hr size=2 width="100%" align=center>
</span></div>
<p><span lang=EN-US style='font-family:Arial'><b>Trouble Shooting:</b></span><span
lang=EN-US> </span></p>
<p><span lang=EN-US style='font-family:Arial'><b>1.</b></span><span lang=EN-US
style='font-family:Arial'> If you have questions, ask </span><span lang=EN-US
style='font-family:Arial;color:#000099'><a href="mailto:wrfhelp@wrf-model.org"><span
style='font-family:"Times New Roman"'>wrfhelp@u!
car.edu</span></a></span><span
lang=EN-US> </span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal align=center style='text-align:center'><span lang=EN-US><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
style='font-family:Arial'><a href="wrfvar-tutorial.htm">Return to WRF-Var
Tutorial Page</a><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:windowtext'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
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<div class=Section1>
<p style='text-align:justify'><span lang=EN-US style='font-size:18.0pt;
font-family:Arial;color:blue'><b>f. Updating WRF lateral boundary conditions<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US sty!
le='font-family:Arial'>Before
running a forecast, you must first modify the tendencies within the lateral
boundary condition files to be consistent with the new 3D-Var initial
conditions. This is a simple procedure performed by the WRF utility WRF_BC.<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>i.
Accessing the WRF_BC code</u></b></span><span lang=EN-US><u> <o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>First,
go to your working directory and download the WRF_BC code from<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><a
href="http://www.mmm.ucar.edu/wrf/WG4/wrfvar/WRF_BC_v2.1.tar.gz">http://www.mmm.ucar.edu/wrf/WG4/wrfvar/WRF_BC_v2.1.tar.gz<!
;/a><o:p></o:p></span></p>
<p s!
tyle='te
xt-align:justify'><span lang=EN-US style='font-family:Arial'>Once
you have it on your machine, type the following to unzip and untar it:</span><span
lang=EN-US> </span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>gunzip
WRF_BC_V2.1.tar.gz<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>tar
-xvf WRF_BC_V2.1.tar</b></span><span lang=EN-US> </span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>After
this, you should see a program directory WRF_BC/ created in your working
directory. If so, tidy up with the command<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>rm
WRF_BC_V2.1.tar<o:p></o:p></b></span><!
;/p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>cd to
the WRF_BC_V2.1 directory:</span><span lang=EN-US> </span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>cd
WRF_BC_V2.1<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>ii.
Compiling WRF_BC</u></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>The
README file contains information on the role of WRF_BC, and how to compile. To
do the latter, simply type<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>make<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-!
family:Arial'>You
will then see an executable by typing<!
o:p>&
lt;/o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>ls
-l update_wrf_bc.exe<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>ii.
Running WRF_BC</u></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>The update_wrf_bc.exe
is run via the <a href="http://www.mmm.ucar.edu/wrf/WG4/wrfvar/new_bc.csh.txt">new_bc.csh</a>
script. Simply supply the names of the input analysis, lateral boundary
condition, and WRF-Var analysis file names, The output can then be used as the
initial conditions for WRF.<o:p></o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
<hr size=2 width="100%" align=center>
</span><!
;/div>
<p><span lang=EN-US style='font-family:Arial'><b>Trouble Shooting:</b></span><span
lang=EN-US> </span></p>
<p><span lang=EN-US style='font-family:Arial'><b>1.</b></span><span lang=EN-US
style='font-family:Arial'> If you have questions, ask </span><span lang=EN-US
style='font-family:Arial;color:#000099'><a href="mailto:wrfhelp@wrf-model.org"><span
style='font-family:"Times New Roman"'>wrfhelp@ucar.edu</span></a></span><span
lang=EN-US> </span></p>
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;/p>
<p class=MsoNormal align=center style='text-align:!
center'&
gt;<span lang=EN-US
style='font-family:Arial'><a href="wrfvar-tutorial.htm">Return to WRF-Var
Tutorial Page</a><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:windowtext'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
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<div class=Section1>
<p style='text-align:justify'><span lang=EN-US style='font-size:18.0pt;
font-family:Arial;color:blue'><b>f. Updating WRF lateral boundary conditions<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US sty!
le='font-family:Arial'>Before
running a forecast, you must first modify the tendencies within the lateral
boundary condition files to be consistent with the new 3D-Var initial
conditions. This is a simple procedure performed by the WRF utility WRF_BC.<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>i.
Accessing the WRF_BC code</u></b></span><span lang=EN-US><u> <o:p></o:p></u></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>First,
go to your working directory and download the WRF_BC code from<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><a
href="http://www.mmm.ucar.edu/wrf/WG4/wrfvar/WRF_BC_v2.1.tar.gz">http://www.mmm.ucar.edu/wrf/WG4/wrfvar/WRF_BC_v2.1.tar.gz<!
;/a><o:p></o:p></span></p>
<p s!
tyle='te
xt-align:justify'><span lang=EN-US style='font-family:Arial'>Once
you have it on your machine, type the following to unzip and untar it:</span><span
lang=EN-US> </span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>gunzip
WRF_BC_V2.1.tar.gz<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>tar
-xvf WRF_BC_V2.1.tar</b></span><span lang=EN-US> </span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>After
this, you should see a program directory WRF_BC_v2.1/ created in your working
directory. If so, tidy up with the command<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>rm
WRF_BC_V2.1.tar<o:p></o:p></b></span&g!
t;</p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>cd to
the WRF_BC_V2.1 directory:</span><span lang=EN-US> </span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>cd
WRF_BC_V2.1<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>ii.
Compiling WRF_BC</u></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>The
README file contains information on the role of WRF_BC, and how to compile. To
do the latter, simply type<o:p></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>make<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='!
font-family:Arial'>You
will then see an executable by typin!
g<o:p
></o:p></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b>ls
-l update_wrf_bc.exe<o:p></o:p></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'><b><u>ii.
Running WRF_BC</u></b></span></p>
<p style='text-align:justify'><span lang=EN-US style='font-family:Arial'>The update_wrf_bc.exe
is run via the <a href="http://www.mmm.ucar.edu/wrf/WG4/wrfvar/new_bc.csh.txt">new_bc.csh</a>
script. Simply supply the names of the input analysis, lateral boundary
condition, and WRF-Var analysis file names, The output can then be used as the
initial conditions for WRF.<o:p></o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
<hr size=2 width="100%" align=center>
</span&g!
t;</div>
<p><span lang=EN-US style='font-family:Arial'><b>Trouble Shooting:</b></span><span
lang=EN-US> </span></p>
<p><span lang=EN-US style='font-family:Arial'><b>1.</b></span><span lang=EN-US
style='font-family:Arial'> If you have questions, ask </span><span lang=EN-US
style='font-family:Arial;color:#000099'><a href="mailto:wrfhelp@wrf-model.org"><span
style='font-family:"Times New Roman"'>wrfhelp@ucar.edu</span></a></span><span
lang=EN-US> </span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
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<p class=MsoNormal align=center style='text-align:center'><span lang=EN-US><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span&g!
t;</p>
<p class=MsoNormal align=center style='text-a!
lign:cen
ter'><span lang=EN-US
style='font-family:Arial'><a href="wrfvar-tutorial.htm">Return to WRF-Var
Tutorial Page</a><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:windowtext'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
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<div class=Section1>
<p align=center style='margin-left:.5in;text-align:center'><span lang=EN-US
style='font-size:18.0pt;font-family:Arial'><b>The WRF Variational Data
Assimilation System (WRF-Var)</b></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
s!
tyle='font-size:18.0pt;font-family:Arial'><b>1. Introduction</b></span><span
lang=EN-US style='font-family:Arial'><b><o:p></o:p></b></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
style='font-family:Arial'>MMM Division of NCAR supports a unified
(global/regional, multi-model, 3/4D-Var) model-space variational data
assimilation system (WRF-Var) for use by NCAR staff and collaborators, and is
also freely available to the general community, together with further
documentation, test results, plans etc., from the links below.<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
style='font-family:Arial'>The components of the WRF-Var system are shown in
blue in the sketch below, together with their relationship with rest of the WRF
system.<o:p></o:p></span></p>
<p style='margin-lef!
t:.5in'><span lang=EN-US style='font-family:Arial'>&l!
t;!--[if
gte vml 1]><v:shapetype
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</v:shape><![endif]--><![if !vml]><img width=396 height=297
src="wrfvar_files/image002.png" v:shapes="_x0000_i1025"><![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify'><span
lang=EN-US style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify'><span
lang=EN-US style='font-family:Arial'>As a professional courtesy, we request
that you include the following reference in any publications t!
hat makes use of
any component of the community WRF-Var system!
:<o:p
></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify'><span
lang=EN-US style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify'><span
lang=EN-US style='font-family:Arial;color:red'>Barker, D. M., W. Huang, Y. R.
Guo, and Q. N. Xiao., 2004: A Three-Dimensional (3DVAR) Data Assimilation
System For Use With MM5: Implementation and Initial Results. <i>Mon. Wea. Rev</i></span><span
lang=EN-US style='font-family:Arial;color:red'>., <b>132</b></span><span
lang=EN-US style='font-family:Arial;color:red'>, 897-914.<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
style='font-size:18.0pt;font-family:Arial'><b>2. Background<o:p></o:p></b&!
gt;</span></p>
<p class=MsoNormal style='text-align:justify;mso-pagination:none;tab-stops:
28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>The WRF-Var system has been developed in four major
stages.&nbsp;<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt!
336.0pt;
mso-layout-grid-align:none;text-autospace:none'>&!
lt;span
lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>a) The basic system (June 2003)<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
n!
one;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>The basic system contained the necessary
infrastructure, but not all the complexities (e.g. radiance assimilation,
anisotropic recursive filters) of subsequent research and advanced
versions.&nbsp; The characteristics of the basic WRF 3D-Var system were:<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.!
0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l2!
level1
lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>i.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Incremental
formulation.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list!
:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>ii.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>MPI ready.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagin!
ation:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left!
16.0pt
list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>iii.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Flexible
observational F90 structures.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;ms!
o-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>iv.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Weak balance
constraint through the choice of analysis variables.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text!
-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;!
mso-pagi
nation:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>v.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Unstaggered
grid.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-!
.25in;mso-pagination:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>vi.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Model space
solution.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;t!
ext-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:n!
one;mso-
list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>vii.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>3D-
isotropic but inhomogeneous background error covariance matrix generated
through the use of recursive filters<o:p></o:p></span></p&!
gt;
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>viii.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Ar!
ial'>Observation
operators and covariances will assume unco!
rrelated
observational errors.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>ix.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span !
lang=EN-US style='font-family:Arial'>Platform
specific quality control to be performed prior to analysis (WG12).&nbsp;
Multi-platform quality control to be performed within analysis system.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>x.<span style='font:7.0pt "Time!
s New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;!
&nbs
p;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Primary input
data to be in BUFR format.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>xi.<span style='font:7.0pt "Times New Roman&!
quot;'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Comprehensive
performance diagnostics.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp!
;
</span>xii.<span style='font:7.0pt "Times New !
Roman&qu
ot;'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Code
management using CVS.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;text-indent:-16.0pt;
mso-pagination:none;tab-stops:right 5.3pt left 16.0pt;mso-layout-grid-align:
none;text-autospace:none'><span lang=EN-US style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>b) Upgraded basic version (WRF 3DVAR V2.0)<o:p></o:p></span></p>
<p clas!
s=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>This version was released in May 2004 as part of the
WRFV2.0 package. It incorporated the following additional capabilities:<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196!
.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-al!
ign:none
;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l8 level1 lfo8;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>i.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&am!
p;nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Re-ordering
of grid-points to i=x and k=1 at bottom (and removal of MM5 I/O).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l8 level1 lfo8;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>ii.<span style='font:7.0pt!
"Times New Roman"'>&nbsp;&nbsp;&nbsp!
;&nb
sp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Variational
quality control via inner/outer loop structure.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l8 level1 lfo8;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>iii.<span style='fo!
nt:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Assimilation
of radar radial velocities.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l8 level1 lfo8;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n!
bsp;&nbsp;&nbsp;
</span>iv.<span style='font:!
7.0pt &q
uot;Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Improved
minimization flexibility (option for conjugate gradient for linear inner-loop).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l8 level1 lfo8;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;!
&nbsp;&nbsp;&nbsp;&nbsp;
</span>v.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Sophisticated
surface observation operators (uses PBL physics).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l8 level1 lfo8;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp!
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&!
amp;nbsp
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>vi.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Changes to
permit WRF 3D-Var to be cycled with WRF.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layou!
t-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>c) Research version (WRF-Var V2.1)<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>This version was released in August 2005 as part of
the WRFV2.1 package. It incorporates the following additional capabilities:<o:!
p></o:p></span></p>
<p class=MsoNorma!
l style=
'margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l5 level1 lfo9;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none!
;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>i.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>First-guess
at analysis time (FGAT) - to make better use of asynoptic observations in
3DVAR.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l5 leve!
l1 lfo9;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layo!
ut-grid-
align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>ii.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Radar
reflectivity assimilation capability (already in pre-operational trials in
Korea).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagina!
tion:none;mso-list:l5 level1 lfo9;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>iii.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Prototype
global 3D-Var capability.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;te!
xt-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:no!
ne;mso-l
ist:l5 level1 lfo9;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>iv.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>A utility
(gen_be) to enable users to calculate estimates of background errors for their
own domains.<o:p></o:p></span></p>
<p class=MsoNorm!
al style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l5 level1 lfo9;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>v.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Porting to
Cray-X1 and Apple G4/G5 platforms.<o:p></o:p>&!
lt;/span></p>
<p class=MsoNormal style='margin-le!
ft:1.0in
;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l5 level1 lfo9;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>vi.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Unification
of 3D-Var and WRF in the V2.1 framework. This is in preparation !
for the 4D-Var
capability of WRF-Var that is under development.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>c) Advanced Version (2006)<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.!
0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.!
0pt;
mso
-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>The advanced version will incorporate new
developments from the WRF team to create an improved 3/4D-Var system.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![end!
if]><o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
style='font-size:18.0pt'><b>3. Process for inclusion of new capabilities in the
WRF-Var repository<o:p></o:p></b></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-size:18.0pt;font-family:Arial'><b><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></b></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style=!
'font-family:Arial'>The development of WRF-Var is a joint e!
ffort ac
ross a
number of international organizations. To avoid duplication of work, and to
coordinate multiple code changes, the following procedure has been adopted:<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span
style="mso-spacerun: yes">&!
amp;nbsp; </span>Change proposed with draft of methodology
and impact in initial tests (if any).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span
style="mso-spacerun: yes">&nbsp; </span>If approved for potential inclus!
ion,
reviewer assigned and schedule for development decided.&l!
t;o:p>
;</o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span
style="mso-spacerun: yes">&nbsp; </span>Contributed code tested in repository
system (including standard tests and additional tests which show the new
capability in action).<o:p>&!
lt;/o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span
style="mso-spacerun: yes">&nbsp; </span>Developer/reviewer present results to
working group.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;!
text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0p!
t 84.0pt
112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>e)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span
style="mso-spacerun: yes">&nbsp; </span>When approved, change is added to
repository (including change file describing code changes and impacts).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0!
pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
style='font-size:18.0pt'><b>4. </b></span><span lang=EN-US style='font-size:
18.0pt;font-family:Arial'><b>Summary of current status of development efforts<o:p></o:p></b></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-size:18.0pt;font-family:Arial'><b><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></b></span><!
/p>
<p class=MsoNormal style='margin-left:.5in;text-ali!
gn:justi
fy;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>Version 2.1 of WRF-Var was released in August 2005.
This version is intended for use by knowledgeable, friendly users.&nbsp; While
the release has no known errors, it is known that deficiencies exist e.g.
radiance assimilation is not yet included, and background errors are currently
only climatological estimates.&nbsp; The developers would appreciate
notification of any problems with the WRF-Var code, but cannot promise prompt
response or solution to the problems.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'>!
<span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>See the WRF <a
href="http://www.mmm.ucar.edu/wrf/users/download/get_source.html"><span
style='color:blue;text-decoration:none;text-underline:none'>download page</span></a>
for details on how to access the WRF-Var system. We recommend that you follow
the <a href="http://www.mmm.ucar.edu/wrf/WG4/wrfvar/wrfvar-tutorial.htm"><span
style='color:blue;text-decoration:none;text-underline:none'>WRF-Var Tutorial</span></a>
to understand what WRF-Var is doing!<o:p></o:p>&!
lt;/span></p>
<p class=MsoNormal style='margin-le!
ft:.5in;
text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>Work is now focusing on the research version of
3/4D-Var described above.<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
style='font-size:18.0pt'><b>5. Links, Documentation<o:p></o:p></b></span></p>
<p class=MsoNormal style='margin-left:!
.5in;text-align:justify;mso-pagination:
none;tab-stops:right 5.3pt left 16.0pt;mso-layout-grid-align:none;text-autospace:
none'><span lang=EN-US style='font-family:Arial'>a) <a
href="http://www.mmm.ucar.edu/wrf/WG4/wrfvar/wrfvar-tutorial.htm"><span
style='color:blue;text-decoration:none;text-underline:none'>WRF-Var Tutorial</span></a>
- an introduction to running WRF-Var.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:right 5.3pt left 16.0pt;mso-layout-grid-align:none;text-autospace:
none'><span lang=EN-US style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:right 5.3pt left 16.0pt;mso-layout-grid-align:none;text-autospace:
none'><span lang=EN-US styl!
e='font-family:Arial'>b) <a
href="http://www.mmm.uc!
ar.edu/w
rf/users/docs/arw_v2.pdf"><span
style='color:blue;text-decoration:none;text-underline:none'>Advanced Research
WRF (ARW) Technical Note</span></a> - see chapter 9 for WRF-Var (pdf).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:right 5.3pt left 16.0pt;mso-layout-grid-align:none;text-autospace:
none'><span lang=EN-US style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:right 5.3pt left 16.0pt;mso-layout-grid-align:none;text-autospace:
none'><span lang=EN-US style='font-family:Arial'>c) <a
href="http://www.mmm.ucar.edu/wrf/users/docs/user_guide/contents.html"><span
style='color:blue;text-decoration:none;text-underline:none'>WRF User Guide</spa!
n></a>
- see Chapter 6 for a description of WRF-Var.<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
style='font-family:Arial'>d) <a href="http://www.mmm.ucar.edu/3dvar"><span
style='color:blue;text-decoration:none;text-underline:none'>MM5 3DVAR Homepage</span></a>
- useful for download, general documentation related to the MM5 version of WRF
3DVAR.</span></p>
<div class=MsoNormal align=center style='margin-left:.5in;text-align:center'><span
lang=EN-US>
<hr size=2 width="100%" align=center>
</span></div>
<p align=center style='margin-left:.5in;text-align:center'><span lang=EN-US
style='font-family:Arial;color:#FF6666'>For comments, send email to</span><span
lang=EN-US style='font-family:Arial;color:#000099'> <a
href="mailto:wrfhelp@wrf-model.org"><span style=!
'font-family:"Times New Roman"'>wrfhelp@wrf-model!
.org<
/span></a></span></p>
<p align=center style='margin-left:.5in;text-align:center'><span lang=EN-US
style='font-family:Arial'>Last Modified: August 4 2005</span></p>
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<div class=Section1>
<p align=center style='margin-left:.5in;text-align:center'><span lang=EN-US
style='font-size:18.0pt;font-family:Arial'><b>The WRF Variational Data
Assimilation System (WRF-Var)</b></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
s!
tyle='font-size:18.0pt;font-family:Arial'><b>1. Introduction</b></span><span
lang=EN-US style='font-family:Arial'><b><o:p></o:p></b></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
style='font-family:Arial'>MMM Division of NCAR supports a unified
(global/regional, multi-model, 3/4D-Var) model-space variational data
assimilation system (WRF-Var) for use by NCAR staff and collaborators, and is
also freely available to the general community, together with further
documentation, test results, plans etc., from the links below.<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
style='font-family:Arial'>The components of the WRF-Var system are shown in
blue in the sketch below, together with their relationship with rest of the WRF
system.<o:p></o:p></span></p>
<p style='margin-lef!
t:.5in'><span lang=EN-US style='font-family:Arial'>&l!
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gte vml 1]><v:shapetype
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</v:shape><![endif]--><![if !vml]><img width=396 height=297
src="wrfvar_files/image002.png" v:shapes="_x0000_i1025"><![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify'><span
lang=EN-US style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify'><span
lang=EN-US style='font-family:Arial'>As a professional courtesy, we request
that you include the following reference in any publications t!
hat makes use of
any component of the community WRF-Var system!
:<o:p
></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify'><span
lang=EN-US style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify'><span
lang=EN-US style='font-family:Arial;color:red'>Barker, D. M., W. Huang, Y. R.
Guo, and Q. N. Xiao., 2004: A Three-Dimensional (3DVAR) Data Assimilation
System For Use With MM5: Implementation and Initial Results. <i>Mon. Wea. Rev</i></span><span
lang=EN-US style='font-family:Arial;color:red'>., <b>132</b></span><span
lang=EN-US style='font-family:Arial;color:red'>, 897-914.<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
style='font-size:18.0pt;font-family:Arial'><b>2. Background<o:p></o:p></b&!
gt;</span></p>
<p class=MsoNormal style='text-align:justify;mso-pagination:none;tab-stops:
28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>The WRF-Var system has been developed in four major
stages.&nbsp;<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt!
336.0pt;
mso-layout-grid-align:none;text-autospace:none'>&!
lt;span
lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>a) The basic system (June 2003)<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
n!
one;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>The basic system contained the necessary
infrastructure, but not all the complexities (e.g. radiance assimilation,
anisotropic recursive filters) of subsequent research and advanced
versions.&nbsp; The characteristics of the basic WRF 3D-Var system were:<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.!
0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l2!
level1
lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>i.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Incremental
formulation.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list!
:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>ii.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>MPI ready.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagin!
ation:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left!
16.0pt
list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>iii.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Flexible
observational F90 structures.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;ms!
o-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>iv.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Weak balance
constraint through the choice of analysis variables.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text!
-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;!
mso-pagi
nation:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>v.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Unstaggered
grid.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-!
.25in;mso-pagination:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>vi.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Model space
solution.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;t!
ext-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:n!
one;mso-
list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>vii.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>3D-
isotropic but inhomogeneous background error covariance matrix generated
through the use of recursive filters<o:p></o:p></span></p&!
gt;
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>viii.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Ar!
ial'>Observation
operators and covariances will assume unco!
rrelated
observational errors.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>ix.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span !
lang=EN-US style='font-family:Arial'>Platform
specific quality control to be performed prior to analysis (WG12).&nbsp;
Multi-platform quality control to be performed within analysis system.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>x.<span style='font:7.0pt "Time!
s New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;!
&nbs
p;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Primary input
data to be in BUFR format.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>xi.<span style='font:7.0pt "Times New Roman&!
quot;'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Comprehensive
performance diagnostics.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l2 level1 lfo7;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp!
;
</span>xii.<span style='font:7.0pt "Times New !
Roman&qu
ot;'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Code
management using CVS.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;text-indent:-16.0pt;
mso-pagination:none;tab-stops:right 5.3pt left 16.0pt;mso-layout-grid-align:
none;text-autospace:none'><span lang=EN-US style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>b) Upgraded basic version (WRF 3DVAR V2.0)<o:p></o:p></span></p>
<p clas!
s=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>This version was released in May 2004 as part of the
WRFV2.0 package. It incorporated the following additional capabilities:<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196!
.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-al!
ign:none
;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l8 level1 lfo8;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>i.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&am!
p;nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Re-ordering
of grid-points to i=x and k=1 at bottom (and removal of MM5 I/O).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l8 level1 lfo8;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>ii.<span style='font:7.0pt!
"Times New Roman"'>&nbsp;&nbsp;&nbsp!
;&nb
sp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Variational
quality control via inner/outer loop structure.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l8 level1 lfo8;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>iii.<span style='fo!
nt:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Assimilation
of radar radial velocities.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l8 level1 lfo8;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n!
bsp;&nbsp;&nbsp;
</span>iv.<span style='font:!
7.0pt &q
uot;Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Improved
minimization flexibility (option for conjugate gradient for linear inner-loop).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l8 level1 lfo8;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;!
&nbsp;&nbsp;&nbsp;&nbsp;
</span>v.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Sophisticated
surface observation operators (uses PBL physics).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l8 level1 lfo8;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp!
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&!
amp;nbsp
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>vi.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Changes to
permit WRF 3D-Var to be cycled with WRF.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layou!
t-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>c) Research version (WRF-Var V2.2beta)<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>This version was released in August 2005 as part of
the WRFV2.1 package. It incorporates the following additional capabilities:&l!
t;o:p></o:p></span></p>
<p class=MsoN!
ormal st
yle='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l5 level1 lfo9;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:!
none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>i.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>First-guess
at analysis time (FGAT) - to make better use of asynoptic observations in
3DVAR.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l5 !
level1 lfo9;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-!
layout-g
rid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>ii.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Radar
reflectivity assimilation capability (already in pre-operational trials in
Korea).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pa!
gination:none;mso-list:l5 level1 lfo9;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>iii.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Prototype
global 3D-Var capability.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in;text-align:justif!
y;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-paginatio!
n:none;m
so-list:l5 level1 lfo9;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>iv.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>A utility
(gen_be) to enable users to calculate estimates of background errors for their
own domains.<o:p></o:p></span></p>
<p class=Mso!
Normal style='margin-left:1.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l5 level1 lfo9;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>v.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Porting to
Cray-X1 and Apple G4/G5 platforms.<o:p></o:p&!
gt;</span></p>
<p class=MsoNormal style='margi!
n-left:1
.0in;text-align:justify;text-indent:
-1.0in;mso-text-indent-alt:-.25in;mso-pagination:none;mso-list:l5 level1 lfo9;
tab-stops:right 5.3pt left 16.0pt list 1.0in;mso-layout-grid-align:none;
text-autospace:none'><![if !supportLists]><span lang=EN-US style='font-family:
Arial'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>vi.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span lang=EN-US style='font-family:Arial'>Unification
of 3D-Var and WRF in the V2.2 framework. This is in preparat!
ion for the 4D-Var
capability of WRF-Var that is under development.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>c) Advanced Version (2006)<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt !
112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt !
336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>The advanced version will incorporate new
developments from the WRF team to create an improved 3/4D-Var system.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<!!
[endif]><o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
style='font-size:18.0pt'><b>3. Process for inclusion of new capabilities in the
WRF-Var repository<o:p></o:p></b></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-size:18.0pt;font-family:Arial'><b><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></b></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
st!
yle='font-family:Arial'>The development of WRF-Var is a joi!
nt effor
t across a
number of international organizations. To avoid duplication of work, and to
coordinate multiple code changes, the following procedure has been adopted:<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span
style="mso-spacerun: yes"&!
gt;&nbsp; </span>Change proposed with draft of methodology
and impact in initial tests (if any).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span
style="mso-spacerun: yes">&nbsp; </span>If approved for potential in!
clusion,
reviewer assigned and schedule for development decide!
d.<o:
p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span
style="mso-spacerun: yes">&nbsp; </span>Contributed code tested in repository
system (including standard tests and additional tests which show the new
capability in action).<o:p&!
gt;</o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span
style="mso-spacerun: yes">&nbsp; </span>Developer/reviewer present results to
working group.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.!
5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 5!
6.0pt 84
.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>e)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span
style="mso-spacerun: yes">&nbsp; </span>When approved, change is added to
repository (including change file describing code changes and impacts).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 1!
96.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
style='font-size:18.0pt'><b>4. </b></span><span lang=EN-US style='font-size:
18.0pt;font-family:Arial'><b>Summary of current status of development efforts<o:p></o:p></b></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-size:18.0pt;font-family:Arial'><b><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></b></span>!
</p>
<p class=MsoNormal style='margin-left:.5in;text!
-align:j
ustify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>Version 2.1 of WRF-Var was released in August 2005.
This version is intended for use by knowledgeable, friendly users.&nbsp; While
the release has no known errors, it is known that deficiencies exist e.g.
radiance assimilation is not yet included, and background errors are currently
only climatological estimates.&nbsp; The developers would appreciate
notification of any problems with the WRF-Var code, but cannot promise prompt
response or solution to the problems.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'!
><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>See the WRF <a
href="http://www.mmm.ucar.edu/wrf/users/download/get_source.html"><span
style='color:blue;text-decoration:none;text-underline:none'>download page</span></a>
for details on how to access the WRF-Var system. We recommend that you follow
the <a href="http://www.mmm.ucar.edu/wrf/WG4/wrfvar/wrfvar-tutorial.htm"><span
style='color:blue;text-decoration:none;text-underline:none'>WRF-Var Tutorial</span></a>
to understand what WRF-Var is doing!<o:p></o:p&!
gt;</span></p>
<p class=MsoNormal style='margi!
n-left:.
5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:28.0pt 56.0pt 84.0pt 112.0pt 140.0pt 168.0pt 196.0pt 224.0pt 3.5in 280.0pt 308.0pt 336.0pt;
mso-layout-grid-align:none;text-autospace:none'><span lang=EN-US
style='font-family:Arial'>Work is now focusing on the research version of
3/4D-Var described above.<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
style='font-size:18.0pt'><b>5. Links, Documentation<o:p></o:p></b></span></p>
<p class=MsoNormal style='margin-l!
eft:.5in;text-align:justify;mso-pagination:
none;tab-stops:right 5.3pt left 16.0pt;mso-layout-grid-align:none;text-autospace:
none'><span lang=EN-US style='font-family:Arial'>a) <a
href="http://www.mmm.ucar.edu/wrf/WG4/wrfvar/wrfvar-tutorial.htm"><span
style='color:blue;text-decoration:none;text-underline:none'>WRF-Var Tutorial</span></a>
- an introduction to running WRF-Var.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:right 5.3pt left 16.0pt;mso-layout-grid-align:none;text-autospace:
none'><span lang=EN-US style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:right 5.3pt left 16.0pt;mso-layout-grid-align:none;text-autospace:
none'><span lang=EN-US !
style='font-family:Arial'>b) <a
href="http://www.mm!
m.ucar.e
du/wrf/users/docs/arw_v2.pdf"><span
style='color:blue;text-decoration:none;text-underline:none'>Advanced Research
WRF (ARW) Technical Note</span></a> - see chapter 9 for WRF-Var (pdf).<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:right 5.3pt left 16.0pt;mso-layout-grid-align:none;text-autospace:
none'><span lang=EN-US style='font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in;text-align:justify;mso-pagination:
none;tab-stops:right 5.3pt left 16.0pt;mso-layout-grid-align:none;text-autospace:
none'><span lang=EN-US style='font-family:Arial'>c) <a
href="http://www.mmm.ucar.edu/wrf/users/docs/user_guide/contents.html"><span
style='color:blue;text-decoration:none;text-underline:none'>WRF User Guide<!
/span></a>
- see Chapter 6 for a description of WRF-Var.<o:p></o:p></span></p>
<p style='margin-left:.5in;text-align:justify'><span lang=EN-US
style='font-family:Arial'>d) <a href="http://www.mmm.ucar.edu/3dvar"><span
style='color:blue;text-decoration:none;text-underline:none'>MM5 3DVAR Homepage</span></a>
- useful for download, general documentation related to the MM5 version of WRF
3DVAR.</span></p>
<div class=MsoNormal align=center style='margin-left:.5in;text-align:center'><span
lang=EN-US>
<hr size=2 width="100%" align=center>
</span></div>
<p align=center style='margin-left:.5in;text-align:center'><span lang=EN-US
style='font-family:Arial;color:#FF6666'>For comments, send email to</span><span
lang=EN-US style='font-family:Arial;color:#000099'> <a
href="mailto:wrfhelp@wrf-model.org"><span st!
yle='font-family:"Times New Roman"'>wrfhelp@wrf-m!
odel.org
</span></a></span></p>
<p align=center style='margin-left:.5in;text-align:center'><span lang=EN-US
style='font-family:Arial'>Last Modified: August 4 2005</span></p>
</div>
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