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<p class=MsoNormal>Dear Users!<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-US>I’m trying to assimilate radardata
using WRF-Var v3.0. <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>To do this I put NL_USE_RADAR_OBS=true,
NL_USE_RADAR_RV=true, NL_USE_RADAR_RF=true. The file ob01.radar containing the
data is put in data/ob/2007020100/, together with ob.ascii. <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>My problem is that wrf-var does not seem to
find the datafile: <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'>---------------------------
WARNING ---------------------------<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> WARNING FROM FILE:
<A
HREF="http://www.mmm.ucar.edu/people/wrfhelp/wrfvar/code/trunk/da_scan_obs_radar.html">da_scan_obs_radar.inc</a>
LINE: 39<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> Cannot open radar
file ob01.radar<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> ---------------------------------------------------------------<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> ---------------------------
WARNING ---------------------------<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> WARNING FROM FILE:
<A HREF="http://www.mmm.ucar.edu/people/wrfhelp/wrfvar/code/trunk/da_read_obs_radar.html">da_read_obs_radar.inc</a>
LINE: 43<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> Cannot open radar
file ob01.radar<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> ---------------------------------------------------------------</span><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>The file is called as follows: (in
var/da/da_setup_structures)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> if
(use_radarobs) then<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> ! scan
radar observation file<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> write(filename(1:10),
fmt='(a, i2.2,a)') 'ob', n,'.radar'<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> call
da_scan_obs_radar(iv, filename)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> end if<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>What I don’t get here is what the
location of the data file is!!?? It seems like there is only a filename given into
the subroutine da_scan_obs_radar, and then this subroutine can’t find the
right location of the file:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'>(in
da_read/scan_obs_radar.inc)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> call
da_get_unit(iunit)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> open(unit =
iunit, &<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> FILE = trim(filename),
&<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> FORM =
'FORMATTED', &<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> ACCESS =
'SEQUENTIAL', &<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> iostat =
iost, &<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> STATUS =
'OLD')<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> if (iost /= 0)
then<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> ! Missing file
does not matter<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> call
da_warning(__FILE__,__LINE__, &<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'>
(/"Cannot open radar file "//filename/))<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> call
da_free_unit(iunit)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> if (trace_use)
call da_trace_exit("da_read_obs_radar")<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> return<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'> end if<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Does any of you have experience with radar
assimilation using the latest version of WRFvar, or do you have an idea where I
should put the data so wrf-Var can read it using the above routines?? <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>All help will be very much appreciated!!<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Thanks, Aimée<o:p></o:p></span></p>
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