[Met_help] [rt.rap.ucar.edu #74983] History for Used MET with NETCDF output model WRF
John Halley Gotway via RT
met_help at ucar.edu
Tue Feb 23 10:48:12 MST 2016
----------------------------------------------------------------
Initial Request
----------------------------------------------------------------
Hello,
Please, how I can use TEM with WRF output in NETCDF format?
Indeed, I can not run "point_Stat" with this format.
Thank you.
Nabil.
----------------------------------------------------------------
Complete Ticket History
----------------------------------------------------------------
Subject: Used MET with NETCDF output model WRF
From: John Halley Gotway
Time: Thu Feb 04 11:02:45 2016
Hello,
I see that you have a question about using the MET point_stat tool to
verify output from WRF. MET isn't not designed to read the NetCDF
output
of WRF directly. Instead, it must first be post-processed using
either the
wrf_interp utility for WRF-ARW or the unified post processor (UPP).
UPP is
preferable since it writes GRIB files which MET fully supports.
I'm not familiar with "TEM" so I'd need some more information on that.
Hope that helps clarify.
Thanks,
John Halley Gotway
met_help at ucar.edu
On Thu, Feb 4, 2016 at 6:07 AM, BEN SALEM Nabil via RT
<met_help at ucar.edu>
wrote:
>
> Thu Feb 04 06:07:56 2016: Request 74983 was acted upon.
> Transaction: Ticket created by NBENSALEM at air-rhonealpes.fr
> Queue: met_help
> Subject: Used MET with NETCDF output model WRF
> Owner: Nobody
> Requestors: NBENSALEM at air-rhonealpes.fr
> Status: new
> Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=74983 >
>
>
>
> Hello,
> Please, how I can use TEM with WRF output in NETCDF format?
> Indeed, I can not run "point_Stat" with this format.
> Thank you.
> Nabil.
>
>
>
>
------------------------------------------------
Subject: Used MET with NETCDF output model WRF
From: John Halley Gotway
Time: Mon Feb 08 09:51:14 2016
Nabil,
I'm glad you were able to run UPP to post-process your NetCDF wrfout
files.
But I see that you're having trouble using the Grid-Stat tool in MET
and
are getting the following error:
get_att() -> global NetCDF "Projection" not found
I would need to see the exact call you made to Grid-Stat to be sure,
but
the error message indicates that you are passing the Grid-Stat tool a
NetCDF file in a format that is not supported. Is it possible that
you
still are passing it the NetCDF wrfout file instead of the GRIB output
from
UPP?
Let's take a step back and have you run the plot_data_plane tool
first.
That reads one field from a gridded data file and creates a plot of
it.
First, find one GRIB output file from UPP and run the following
command.
In my example, I call the GRIB file "fcst.grb", but just substitute in
the
name of your file:
met-5.1/bin/plot_data_plane fcst.grb temp_2m.ps 'name="TMP";
level="Z2";'
This should create a PostScript output image. If you can easily
display
those, try converting it to a png:
convert -rotate 90 -background white -flatten temp_2m.ps
temp_2m.png
Did that work? "TMP" is the GRIB code abbreviation for temperature
and
"Z2" indicates that we want a vertical level (Z) with a value of 2.
So
this is a plot of 2-meter temperature.
Hope that helps get you started.
Thanks,
John Halley Gotway
met_help at ucar.edu
On Mon, Feb 8, 2016 at 8:18 AM, BEN SALEM Nabil via RT
<met_help at ucar.edu>
wrote:
>
> Mon Feb 08 08:18:05 2016: Request 75011 was acted upon.
> Transaction: Ticket created by NBENSALEM at air-rhonealpes.fr
> Queue: met_help
> Subject: met_help : Used MET with NETCDF output model WRF
> Owner: Nobody
> Requestors: NBENSALEM at air-rhonealpes.fr
> Status: new
> Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=75011 >
>
>
> Hello,
>
> Please, I need your help to launch MET tools.
> I used the last version of UPP to convert the WRF netcdf file
(output) to
> grib format. But when I use this last file (grib format) with Grid-
Stat Met
> tools, I get the error message: "get_att() -> global NetCDF
"Projection"
> not found"
>
> Well I have another question, how can I create a grib file (for
several
> hours) with UPP tools ? (we used run_unipost_frames car we have a
wrf file
> with several dates)
>
> Thank you.
>
> Nabil
>
>
>
>
> -----Message d'origine-----
> De : John Halley Gotway via RT [mailto:met_help at ucar.edu]
> Envoyé : jeudi 4 février 2016 19:03
> À : BEN SALEM Nabil
> Objet : Re: [rt.rap.ucar.edu #74983] Used MET with NETCDF output
model WRF
>
> Hello,
>
> I see that you have a question about using the MET point_stat tool
to
> verify output from WRF. MET isn't not designed to read the NetCDF
output
> of WRF directly. Instead, it must first be post-processed using
either the
> wrf_interp utility for WRF-ARW or the unified post processor (UPP).
UPP is
> preferable since it writes GRIB files which MET fully supports.
>
> I'm not familiar with "TEM" so I'd need some more information on
that.
>
> Hope that helps clarify.
>
> Thanks,
> John Halley Gotway
> met_help at ucar.edu
>
> On Thu, Feb 4, 2016 at 6:07 AM, BEN SALEM Nabil via RT
<met_help at ucar.edu>
> wrote:
>
> >
> > Thu Feb 04 06:07:56 2016: Request 74983 was acted upon.
> > Transaction: Ticket created by NBENSALEM at air-rhonealpes.fr
> > Queue: met_help
> > Subject: Used MET with NETCDF output model WRF
> > Owner: Nobody
> > Requestors: NBENSALEM at air-rhonealpes.fr
> > Status: new
> > Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=74983
> > >
> >
> >
> >
> > Hello,
> > Please, how I can use TEM with WRF output in NETCDF format?
> > Indeed, I can not run "point_Stat" with this format.
> > Thank you.
> > Nabil.
> >
> >
> >
> >
>
>
>
>
------------------------------------------------
Subject: Used MET with NETCDF output model WRF
From: BEN SALEM Nabil
Time: Tue Feb 09 01:05:43 2016
Hello,
First of all, thank you for your reaction ...
1 - I lanced “run_unipost_frames” to covert my wrf netcdf file (ARW)
to grib. The new grib grid is wrfprs_d03.00.grib (for the first hour)
2- Then, I launched point_stat and it works well I have different
statistics file “point*” , but we used the file of 1 hours. But how
can I create a grib file for several hours ?
Now, I launched grid_stat with:
./grid_stat ARG1 ARG2 ARG3
Where:
ARG1: “wrfprs_d03.00.grib” : Output UPP (1 hours) : forecast grid
AGR2: prepbufer.gdas.146700.2015120700.nc: download on website
AGR3: GridStatConfig_defaut: configuration file
Finally, when I tested the grib output file of UPP with
“plot_data_plane”, I have the results in the attachment.
Thanks for your help,
Nabil.
-----Message d'origine-----
De : John Halley Gotway via RT [mailto:met_help at ucar.edu]
Envoyé : lundi 8 février 2016 17:51
À : BEN SALEM Nabil
Objet : Re: [rt.rap.ucar.edu #75011] met_help : Used MET with NETCDF
output model WRF
Nabil,
I'm glad you were able to run UPP to post-process your NetCDF wrfout
files.
But I see that you're having trouble using the Grid-Stat tool in MET
and are getting the following error:
get_att() -> global NetCDF "Projection" not found
I would need to see the exact call you made to Grid-Stat to be sure,
but the error message indicates that you are passing the Grid-Stat
tool a NetCDF file in a format that is not supported. Is it possible
that you still are passing it the NetCDF wrfout file instead of the
GRIB output from UPP?
Let's take a step back and have you run the plot_data_plane tool
first.
That reads one field from a gridded data file and creates a plot of
it.
First, find one GRIB output file from UPP and run the following
command.
In my example, I call the GRIB file "fcst.grb", but just substitute in
the name of your file:
met-5.1/bin/plot_data_plane fcst.grb temp_2m.ps 'name="TMP";
level="Z2";'
This should create a PostScript output image. If you can easily
display those, try converting it to a png:
convert -rotate 90 -background white -flatten temp_2m.ps
temp_2m.png
Did that work? "TMP" is the GRIB code abbreviation for temperature
and "Z2" indicates that we want a vertical level (Z) with a value of
2. So this is a plot of 2-meter temperature.
Hope that helps get you started.
Thanks,
John Halley Gotway
met_help at ucar.edu
On Mon, Feb 8, 2016 at 8:18 AM, BEN SALEM Nabil via RT
<met_help at ucar.edu>
wrote:
>
> Mon Feb 08 08:18:05 2016: Request 75011 was acted upon.
> Transaction: Ticket created by NBENSALEM at air-rhonealpes.fr
> Queue: met_help
> Subject: met_help : Used MET with NETCDF output model WRF
> Owner: Nobody
> Requestors: NBENSALEM at air-rhonealpes.fr
> Status: new
> Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=75011
> >
>
>
> Hello,
>
> Please, I need your help to launch MET tools.
> I used the last version of UPP to convert the WRF netcdf file
(output)
> to grib format. But when I use this last file (grib format) with
> Grid-Stat Met tools, I get the error message: "get_att() -> global
NetCDF "Projection"
> not found"
>
> Well I have another question, how can I create a grib file (for
> several
> hours) with UPP tools ? (we used run_unipost_frames car we have a
wrf
> file with several dates)
>
> Thank you.
>
> Nabil
>
>
>
>
> -----Message d'origine-----
> De : John Halley Gotway via RT [mailto:met_help at ucar.edu] Envoyé :
> jeudi 4 février 2016 19:03 À : BEN SALEM Nabil Objet : Re:
> [rt.rap.ucar.edu #74983] Used MET with NETCDF output model WRF
>
> Hello,
>
> I see that you have a question about using the MET point_stat tool
to
> verify output from WRF. MET isn't not designed to read the NetCDF
> output of WRF directly. Instead, it must first be post-processed
> using either the wrf_interp utility for WRF-ARW or the unified post
> processor (UPP). UPP is preferable since it writes GRIB files which
MET fully supports.
>
> I'm not familiar with "TEM" so I'd need some more information on
that.
>
> Hope that helps clarify.
>
> Thanks,
> John Halley Gotway
> met_help at ucar.edu
>
> On Thu, Feb 4, 2016 at 6:07 AM, BEN SALEM Nabil via RT
> <met_help at ucar.edu>
> wrote:
>
> >
> > Thu Feb 04 06:07:56 2016: Request 74983 was acted upon.
> > Transaction: Ticket created by NBENSALEM at air-rhonealpes.fr
> > Queue: met_help
> > Subject: Used MET with NETCDF output model WRF
> > Owner: Nobody
> > Requestors: NBENSALEM at air-rhonealpes.fr
> > Status: new
> > Ticket <URL:
> > https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=74983
> > >
> >
> >
> >
> > Hello,
> > Please, how I can use TEM with WRF output in NETCDF format?
> > Indeed, I can not run "point_Stat" with this format.
> > Thank you.
> > Nabil.
> >
> >
> >
> >
>
>
>
>
------------------------------------------------
Subject: Used MET with NETCDF output model WRF
From: John Halley Gotway
Time: Tue Feb 09 09:27:40 2016
Ben,
Typically users run UPP separately for each output time. Take a look
at
that script "run_unipost_frames" at these lines:
export fhr=00
export lastfhr=18
export incrementhr=03
You set "fhr" to the first forecast hour to be post-processed, usually
00.
Set "lastfhr" to the last forecast hour. For a 60 hour forecast, set
it to
60.
Set "incrementhr" to your output frequency. For example, 12 for 12-
hourly
output times.
Setting those to 00, 60, and 12 should generate separate output GRIB
files
for 00, 12, 24, 48, and 60.
And you should expect to run Point-Stat (and/or Grid-Stat) once for
each
output time you're verifying. Most users put calls to UPP and the MET
tools into scripts that loop over the output times they want to
verify.
Hope that helps.
John
On Tue, Feb 9, 2016 at 1:05 AM, BEN SALEM Nabil via RT
<met_help at ucar.edu>
wrote:
>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=74983 >
>
> Hello,
> First of all, thank you for your reaction ...
>
>
> 1 - I lanced “run_unipost_frames” to covert my wrf netcdf file (ARW)
to
> grib. The new grib grid is wrfprs_d03.00.grib (for the first hour)
> 2- Then, I launched point_stat and it works well I have different
> statistics file “point*” , but we used the file of 1 hours. But how
can I
> create a grib file for several hours ?
>
> Now, I launched grid_stat with:
> ./grid_stat ARG1 ARG2 ARG3
> Where:
> ARG1: “wrfprs_d03.00.grib” : Output UPP (1 hours) : forecast grid
> AGR2: prepbufer.gdas.146700.2015120700.nc: download on website
> AGR3: GridStatConfig_defaut: configuration file
>
> Finally, when I tested the grib output file of UPP with
“plot_data_plane”,
> I have the results in the attachment.
>
>
> Thanks for your help,
> Nabil.
>
>
>
>
>
> -----Message d'origine-----
> De : John Halley Gotway via RT [mailto:met_help at ucar.edu]
> Envoyé : lundi 8 février 2016 17:51
> À : BEN SALEM Nabil
> Objet : Re: [rt.rap.ucar.edu #75011] met_help : Used MET with NETCDF
> output model WRF
>
> Nabil,
>
> I'm glad you were able to run UPP to post-process your NetCDF wrfout
files.
>
> But I see that you're having trouble using the Grid-Stat tool in MET
and
> are getting the following error:
> get_att() -> global NetCDF "Projection" not found
>
> I would need to see the exact call you made to Grid-Stat to be sure,
but
> the error message indicates that you are passing the Grid-Stat tool
a
> NetCDF file in a format that is not supported. Is it possible that
you
> still are passing it the NetCDF wrfout file instead of the GRIB
output from
> UPP?
>
> Let's take a step back and have you run the plot_data_plane tool
first.
> That reads one field from a gridded data file and creates a plot of
it.
> First, find one GRIB output file from UPP and run the following
command.
> In my example, I call the GRIB file "fcst.grb", but just substitute
in the
> name of your file:
>
> met-5.1/bin/plot_data_plane fcst.grb temp_2m.ps 'name="TMP";
> level="Z2";'
>
> This should create a PostScript output image. If you can easily
display
> those, try converting it to a png:
>
> convert -rotate 90 -background white -flatten temp_2m.ps
temp_2m.png
>
> Did that work? "TMP" is the GRIB code abbreviation for temperature
and
> "Z2" indicates that we want a vertical level (Z) with a value of 2.
So
> this is a plot of 2-meter temperature.
>
> Hope that helps get you started.
>
> Thanks,
> John Halley Gotway
> met_help at ucar.edu
>
> On Mon, Feb 8, 2016 at 8:18 AM, BEN SALEM Nabil via RT
<met_help at ucar.edu>
> wrote:
>
> >
> > Mon Feb 08 08:18:05 2016: Request 75011 was acted upon.
> > Transaction: Ticket created by NBENSALEM at air-rhonealpes.fr
> > Queue: met_help
> > Subject: met_help : Used MET with NETCDF output model WRF
> > Owner: Nobody
> > Requestors: NBENSALEM at air-rhonealpes.fr
> > Status: new
> > Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=75011
> > >
> >
> >
> > Hello,
> >
> > Please, I need your help to launch MET tools.
> > I used the last version of UPP to convert the WRF netcdf file
(output)
> > to grib format. But when I use this last file (grib format) with
> > Grid-Stat Met tools, I get the error message: "get_att() -> global
> NetCDF "Projection"
> > not found"
> >
> > Well I have another question, how can I create a grib file (for
> > several
> > hours) with UPP tools ? (we used run_unipost_frames car we have a
wrf
> > file with several dates)
> >
> > Thank you.
> >
> > Nabil
> >
> >
> >
> >
> > -----Message d'origine-----
> > De : John Halley Gotway via RT [mailto:met_help at ucar.edu] Envoyé :
> > jeudi 4 février 2016 19:03 À : BEN SALEM Nabil Objet : Re:
> > [rt.rap.ucar.edu #74983] Used MET with NETCDF output model WRF
> >
> > Hello,
> >
> > I see that you have a question about using the MET point_stat tool
to
> > verify output from WRF. MET isn't not designed to read the NetCDF
> > output of WRF directly. Instead, it must first be post-processed
> > using either the wrf_interp utility for WRF-ARW or the unified
post
> > processor (UPP). UPP is preferable since it writes GRIB files
which MET
> fully supports.
> >
> > I'm not familiar with "TEM" so I'd need some more information on
that.
> >
> > Hope that helps clarify.
> >
> > Thanks,
> > John Halley Gotway
> > met_help at ucar.edu
> >
> > On Thu, Feb 4, 2016 at 6:07 AM, BEN SALEM Nabil via RT
> > <met_help at ucar.edu>
> > wrote:
> >
> > >
> > > Thu Feb 04 06:07:56 2016: Request 74983 was acted upon.
> > > Transaction: Ticket created by NBENSALEM at air-rhonealpes.fr
> > > Queue: met_help
> > > Subject: Used MET with NETCDF output model WRF
> > > Owner: Nobody
> > > Requestors: NBENSALEM at air-rhonealpes.fr
> > > Status: new
> > > Ticket <URL:
> > > https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=74983
> > > >
> > >
> > >
> > >
> > > Hello,
> > > Please, how I can use TEM with WRF output in NETCDF format?
> > > Indeed, I can not run "point_Stat" with this format.
> > > Thank you.
> > > Nabil.
> > >
> > >
> > >
> > >
> >
> >
> >
> >
>
>
>
------------------------------------------------
Subject: RE: [rt.rap.ucar.edu #74983] RE: [rt.rap.ucar.edu #75011] met_help : Used MET with NETCDF output model WRF
From: BEN SALEM Nabil
Time: Tue Feb 09 13:47:58 2016
So, I have one file for each 12 hours, but I want a file for several
hours as the initial netcdf output wrf model ?
________________________________________
De : John Halley Gotway via RT <met_help at ucar.edu>
Envoyé : mardi 9 février 2016 17:27:40
À : BEN SALEM Nabil
Objet : Re: [rt.rap.ucar.edu #74983] RE: [rt.rap.ucar.edu #75011]
met_help : Used MET with NETCDF output model WRF
Ben,
Typically users run UPP separately for each output time. Take a look
at
that script "run_unipost_frames" at these lines:
export fhr=00
export lastfhr=18
export incrementhr=03
You set "fhr" to the first forecast hour to be post-processed, usually
00.
Set "lastfhr" to the last forecast hour. For a 60 hour forecast, set
it to
60.
Set "incrementhr" to your output frequency. For example, 12 for 12-
hourly
output times.
Setting those to 00, 60, and 12 should generate separate output GRIB
files
for 00, 12, 24, 48, and 60.
And you should expect to run Point-Stat (and/or Grid-Stat) once for
each
output time you're verifying. Most users put calls to UPP and the MET
tools into scripts that loop over the output times they want to
verify.
Hope that helps.
John
On Tue, Feb 9, 2016 at 1:05 AM, BEN SALEM Nabil via RT
<met_help at ucar.edu>
wrote:
>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=74983 >
>
> Hello,
> First of all, thank you for your reaction ...
>
>
> 1 - I lanced “run_unipost_frames” to covert my wrf netcdf file (ARW)
to
> grib. The new grib grid is wrfprs_d03.00.grib (for the first hour)
> 2- Then, I launched point_stat and it works well I have different
> statistics file “point*” , but we used the file of 1 hours. But how
can I
> create a grib file for several hours ?
>
> Now, I launched grid_stat with:
> ./grid_stat ARG1 ARG2 ARG3
> Where:
> ARG1: “wrfprs_d03.00.grib” : Output UPP (1 hours) : forecast grid
> AGR2: prepbufer.gdas.146700.2015120700.nc: download on website
> AGR3: GridStatConfig_defaut: configuration file
>
> Finally, when I tested the grib output file of UPP with
“plot_data_plane”,
> I have the results in the attachment.
>
>
> Thanks for your help,
> Nabil.
>
>
>
>
>
> -----Message d'origine-----
> De : John Halley Gotway via RT [mailto:met_help at ucar.edu]
> Envoyé : lundi 8 février 2016 17:51
> À : BEN SALEM Nabil
> Objet : Re: [rt.rap.ucar.edu #75011] met_help : Used MET with NETCDF
> output model WRF
>
> Nabil,
>
> I'm glad you were able to run UPP to post-process your NetCDF wrfout
files.
>
> But I see that you're having trouble using the Grid-Stat tool in MET
and
> are getting the following error:
> get_att() -> global NetCDF "Projection" not found
>
> I would need to see the exact call you made to Grid-Stat to be sure,
but
> the error message indicates that you are passing the Grid-Stat tool
a
> NetCDF file in a format that is not supported. Is it possible that
you
> still are passing it the NetCDF wrfout file instead of the GRIB
output from
> UPP?
>
> Let's take a step back and have you run the plot_data_plane tool
first.
> That reads one field from a gridded data file and creates a plot of
it.
> First, find one GRIB output file from UPP and run the following
command.
> In my example, I call the GRIB file "fcst.grb", but just substitute
in the
> name of your file:
>
> met-5.1/bin/plot_data_plane fcst.grb temp_2m.ps 'name="TMP";
> level="Z2";'
>
> This should create a PostScript output image. If you can easily
display
> those, try converting it to a png:
>
> convert -rotate 90 -background white -flatten temp_2m.ps
temp_2m.png
>
> Did that work? "TMP" is the GRIB code abbreviation for temperature
and
> "Z2" indicates that we want a vertical level (Z) with a value of 2.
So
> this is a plot of 2-meter temperature.
>
> Hope that helps get you started.
>
> Thanks,
> John Halley Gotway
> met_help at ucar.edu
>
> On Mon, Feb 8, 2016 at 8:18 AM, BEN SALEM Nabil via RT
<met_help at ucar.edu>
> wrote:
>
> >
> > Mon Feb 08 08:18:05 2016: Request 75011 was acted upon.
> > Transaction: Ticket created by NBENSALEM at air-rhonealpes.fr
> > Queue: met_help
> > Subject: met_help : Used MET with NETCDF output model WRF
> > Owner: Nobody
> > Requestors: NBENSALEM at air-rhonealpes.fr
> > Status: new
> > Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=75011
> > >
> >
> >
> > Hello,
> >
> > Please, I need your help to launch MET tools.
> > I used the last version of UPP to convert the WRF netcdf file
(output)
> > to grib format. But when I use this last file (grib format) with
> > Grid-Stat Met tools, I get the error message: "get_att() -> global
> NetCDF "Projection"
> > not found"
> >
> > Well I have another question, how can I create a grib file (for
> > several
> > hours) with UPP tools ? (we used run_unipost_frames car we have a
wrf
> > file with several dates)
> >
> > Thank you.
> >
> > Nabil
> >
> >
> >
> >
> > -----Message d'origine-----
> > De : John Halley Gotway via RT [mailto:met_help at ucar.edu] Envoyé :
> > jeudi 4 février 2016 19:03 À : BEN SALEM Nabil Objet : Re:
> > [rt.rap.ucar.edu #74983] Used MET with NETCDF output model WRF
> >
> > Hello,
> >
> > I see that you have a question about using the MET point_stat tool
to
> > verify output from WRF. MET isn't not designed to read the NetCDF
> > output of WRF directly. Instead, it must first be post-processed
> > using either the wrf_interp utility for WRF-ARW or the unified
post
> > processor (UPP). UPP is preferable since it writes GRIB files
which MET
> fully supports.
> >
> > I'm not familiar with "TEM" so I'd need some more information on
that.
> >
> > Hope that helps clarify.
> >
> > Thanks,
> > John Halley Gotway
> > met_help at ucar.edu
> >
> > On Thu, Feb 4, 2016 at 6:07 AM, BEN SALEM Nabil via RT
> > <met_help at ucar.edu>
> > wrote:
> >
> > >
> > > Thu Feb 04 06:07:56 2016: Request 74983 was acted upon.
> > > Transaction: Ticket created by NBENSALEM at air-rhonealpes.fr
> > > Queue: met_help
> > > Subject: Used MET with NETCDF output model WRF
> > > Owner: Nobody
> > > Requestors: NBENSALEM at air-rhonealpes.fr
> > > Status: new
> > > Ticket <URL:
> > > https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=74983
> > > >
> > >
> > >
> > >
> > > Hello,
> > > Please, how I can use TEM with WRF output in NETCDF format?
> > > Indeed, I can not run "point_Stat" with this format.
> > > Thank you.
> > > Nabil.
> > >
> > >
> > >
> > >
> >
> >
> >
> >
>
>
>
------------------------------------------------
Subject: RE: [rt.rap.ucar.edu #74983] RE: [rt.rap.ucar.edu #75011] met_help : Used MET with NETCDF output model WRF
From: BEN SALEM Nabil
Time: Tue Feb 09 13:52:39 2016
Ok, but the grid stat tools does not work correctly as this as I
explained in my last email. ? And I send you the result of th
plot_plan tools of the grib file created with upp tools.
________________________________________
De : John Halley Gotway via RT <met_help at ucar.edu>
Envoyé : mardi 9 février 2016 17:27:40
À : BEN SALEM Nabil
Objet : Re: [rt.rap.ucar.edu #74983] RE: [rt.rap.ucar.edu #75011]
met_help : Used MET with NETCDF output model WRF
Ben,
Typically users run UPP separately for each output time. Take a look
at
that script "run_unipost_frames" at these lines:
export fhr=00
export lastfhr=18
export incrementhr=03
You set "fhr" to the first forecast hour to be post-processed, usually
00.
Set "lastfhr" to the last forecast hour. For a 60 hour forecast, set
it to
60.
Set "incrementhr" to your output frequency. For example, 12 for 12-
hourly
output times.
Setting those to 00, 60, and 12 should generate separate output GRIB
files
for 00, 12, 24, 48, and 60.
And you should expect to run Point-Stat (and/or Grid-Stat) once for
each
output time you're verifying. Most users put calls to UPP and the MET
tools into scripts that loop over the output times they want to
verify.
Hope that helps.
John
On Tue, Feb 9, 2016 at 1:05 AM, BEN SALEM Nabil via RT
<met_help at ucar.edu>
wrote:
>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=74983 >
>
> Hello,
> First of all, thank you for your reaction ...
>
>
> 1 - I lanced “run_unipost_frames” to covert my wrf netcdf file (ARW)
to
> grib. The new grib grid is wrfprs_d03.00.grib (for the first hour)
> 2- Then, I launched point_stat and it works well I have different
> statistics file “point*” , but we used the file of 1 hours. But how
can I
> create a grib file for several hours ?
>
> Now, I launched grid_stat with:
> ./grid_stat ARG1 ARG2 ARG3
> Where:
> ARG1: “wrfprs_d03.00.grib” : Output UPP (1 hours) : forecast grid
> AGR2: prepbufer.gdas.146700.2015120700.nc: download on website
> AGR3: GridStatConfig_defaut: configuration file
>
> Finally, when I tested the grib output file of UPP with
“plot_data_plane”,
> I have the results in the attachment.
>
>
> Thanks for your help,
> Nabil.
>
>
>
>
>
> -----Message d'origine-----
> De : John Halley Gotway via RT [mailto:met_help at ucar.edu]
> Envoyé : lundi 8 février 2016 17:51
> À : BEN SALEM Nabil
> Objet : Re: [rt.rap.ucar.edu #75011] met_help : Used MET with NETCDF
> output model WRF
>
> Nabil,
>
> I'm glad you were able to run UPP to post-process your NetCDF wrfout
files.
>
> But I see that you're having trouble using the Grid-Stat tool in MET
and
> are getting the following error:
> get_att() -> global NetCDF "Projection" not found
>
> I would need to see the exact call you made to Grid-Stat to be sure,
but
> the error message indicates that you are passing the Grid-Stat tool
a
> NetCDF file in a format that is not supported. Is it possible that
you
> still are passing it the NetCDF wrfout file instead of the GRIB
output from
> UPP?
>
> Let's take a step back and have you run the plot_data_plane tool
first.
> That reads one field from a gridded data file and creates a plot of
it.
> First, find one GRIB output file from UPP and run the following
command.
> In my example, I call the GRIB file "fcst.grb", but just substitute
in the
> name of your file:
>
> met-5.1/bin/plot_data_plane fcst.grb temp_2m.ps 'name="TMP";
> level="Z2";'
>
> This should create a PostScript output image. If you can easily
display
> those, try converting it to a png:
>
> convert -rotate 90 -background white -flatten temp_2m.ps
temp_2m.png
>
> Did that work? "TMP" is the GRIB code abbreviation for temperature
and
> "Z2" indicates that we want a vertical level (Z) with a value of 2.
So
> this is a plot of 2-meter temperature.
>
> Hope that helps get you started.
>
> Thanks,
> John Halley Gotway
> met_help at ucar.edu
>
> On Mon, Feb 8, 2016 at 8:18 AM, BEN SALEM Nabil via RT
<met_help at ucar.edu>
> wrote:
>
> >
> > Mon Feb 08 08:18:05 2016: Request 75011 was acted upon.
> > Transaction: Ticket created by NBENSALEM at air-rhonealpes.fr
> > Queue: met_help
> > Subject: met_help : Used MET with NETCDF output model WRF
> > Owner: Nobody
> > Requestors: NBENSALEM at air-rhonealpes.fr
> > Status: new
> > Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=75011
> > >
> >
> >
> > Hello,
> >
> > Please, I need your help to launch MET tools.
> > I used the last version of UPP to convert the WRF netcdf file
(output)
> > to grib format. But when I use this last file (grib format) with
> > Grid-Stat Met tools, I get the error message: "get_att() -> global
> NetCDF "Projection"
> > not found"
> >
> > Well I have another question, how can I create a grib file (for
> > several
> > hours) with UPP tools ? (we used run_unipost_frames car we have a
wrf
> > file with several dates)
> >
> > Thank you.
> >
> > Nabil
> >
> >
> >
> >
> > -----Message d'origine-----
> > De : John Halley Gotway via RT [mailto:met_help at ucar.edu] Envoyé :
> > jeudi 4 février 2016 19:03 À : BEN SALEM Nabil Objet : Re:
> > [rt.rap.ucar.edu #74983] Used MET with NETCDF output model WRF
> >
> > Hello,
> >
> > I see that you have a question about using the MET point_stat tool
to
> > verify output from WRF. MET isn't not designed to read the NetCDF
> > output of WRF directly. Instead, it must first be post-processed
> > using either the wrf_interp utility for WRF-ARW or the unified
post
> > processor (UPP). UPP is preferable since it writes GRIB files
which MET
> fully supports.
> >
> > I'm not familiar with "TEM" so I'd need some more information on
that.
> >
> > Hope that helps clarify.
> >
> > Thanks,
> > John Halley Gotway
> > met_help at ucar.edu
> >
> > On Thu, Feb 4, 2016 at 6:07 AM, BEN SALEM Nabil via RT
> > <met_help at ucar.edu>
> > wrote:
> >
> > >
> > > Thu Feb 04 06:07:56 2016: Request 74983 was acted upon.
> > > Transaction: Ticket created by NBENSALEM at air-rhonealpes.fr
> > > Queue: met_help
> > > Subject: Used MET with NETCDF output model WRF
> > > Owner: Nobody
> > > Requestors: NBENSALEM at air-rhonealpes.fr
> > > Status: new
> > > Ticket <URL:
> > > https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=74983
> > > >
> > >
> > >
> > >
> > > Hello,
> > > Please, how I can use TEM with WRF output in NETCDF format?
> > > Indeed, I can not run "point_Stat" with this format.
> > > Thank you.
> > > Nabil.
> > >
> > >
> > >
> > >
> >
> >
> >
> >
>
>
>
------------------------------------------------
Subject: Used MET with NETCDF output model WRF
From: John Halley Gotway
Time: Wed Feb 10 13:57:07 2016
Nabil,
Looking back through this ticket, I see the following information you
sent:
++++++++++++++++++++++++++++
Now, I launched grid_stat with:
./grid_stat ARG1 ARG2 ARG3
Where:
ARG1: “wrfprs_d03.00.grib” : Output UPP (1 hours) : forecast grid
AGR2: prepbufer.gdas.146700.2015120700.nc: download on website
AGR3: GridStatConfig_defaut: configuration file
++++++++++++++++++++++++++++
You passed Grid-Stat a point observation file instead of a gridded
observation file. The Point-Stat tool is used to compare a gridded
forecast to point observations. The Grid-Stat tool is used to compare
a
gridded forecast to a gridded analysis or observation field. The
decision
about which MET tools you should run is based on the type of
observations
you have available.
You can read more about the Grid-Stat tool in Chaper 8 of the MET
User's
Guide:
http://www.dtcenter.org/met/users/docs/users_guide/MET_Users_Guide_v5.1.pdf
Hope that helps clarify.
Thanks,
John
On Tue, Feb 9, 2016 at 1:52 PM, BEN SALEM Nabil via RT
<met_help at ucar.edu>
wrote:
>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=74983 >
>
>
> Ok, but the grid stat tools does not work correctly as this as I
explained
> in my last email. ? And I send you the result of th plot_plan tools
of the
> grib file created with upp tools.
> ________________________________________
> De : John Halley Gotway via RT <met_help at ucar.edu>
> Envoyé : mardi 9 février 2016 17:27:40
> À : BEN SALEM Nabil
> Objet : Re: [rt.rap.ucar.edu #74983] RE: [rt.rap.ucar.edu #75011]
> met_help : Used MET with NETCDF output model WRF
>
> Ben,
>
> Typically users run UPP separately for each output time. Take a
look at
> that script "run_unipost_frames" at these lines:
>
> export fhr=00
> export lastfhr=18
> export incrementhr=03
>
> You set "fhr" to the first forecast hour to be post-processed,
usually 00.
> Set "lastfhr" to the last forecast hour. For a 60 hour forecast,
set it to
> 60.
> Set "incrementhr" to your output frequency. For example, 12 for 12-
hourly
> output times.
>
> Setting those to 00, 60, and 12 should generate separate output GRIB
files
> for 00, 12, 24, 48, and 60.
>
> And you should expect to run Point-Stat (and/or Grid-Stat) once for
each
> output time you're verifying. Most users put calls to UPP and the
MET
> tools into scripts that loop over the output times they want to
verify.
>
> Hope that helps.
>
> John
>
>
> On Tue, Feb 9, 2016 at 1:05 AM, BEN SALEM Nabil via RT
<met_help at ucar.edu>
> wrote:
>
> >
> > <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=74983 >
> >
> > Hello,
> > First of all, thank you for your reaction ...
> >
> >
> > 1 - I lanced “run_unipost_frames” to covert my wrf netcdf file
(ARW) to
> > grib. The new grib grid is wrfprs_d03.00.grib (for the first
hour)
> > 2- Then, I launched point_stat and it works well I have
different
> > statistics file “point*” , but we used the file of 1 hours. But
how can
> I
> > create a grib file for several hours ?
> >
> > Now, I launched grid_stat with:
> > ./grid_stat ARG1 ARG2 ARG3
> > Where:
> > ARG1: “wrfprs_d03.00.grib” : Output UPP (1 hours) : forecast grid
> > AGR2: prepbufer.gdas.146700.2015120700.nc: download on website
> > AGR3: GridStatConfig_defaut: configuration file
> >
> > Finally, when I tested the grib output file of UPP with
> “plot_data_plane”,
> > I have the results in the attachment.
> >
> >
> > Thanks for your help,
> > Nabil.
> >
> >
> >
> >
> >
> > -----Message d'origine-----
> > De : John Halley Gotway via RT [mailto:met_help at ucar.edu]
> > Envoyé : lundi 8 février 2016 17:51
> > À : BEN SALEM Nabil
> > Objet : Re: [rt.rap.ucar.edu #75011] met_help : Used MET with
NETCDF
> > output model WRF
> >
> > Nabil,
> >
> > I'm glad you were able to run UPP to post-process your NetCDF
wrfout
> files.
> >
> > But I see that you're having trouble using the Grid-Stat tool in
MET and
> > are getting the following error:
> > get_att() -> global NetCDF "Projection" not found
> >
> > I would need to see the exact call you made to Grid-Stat to be
sure, but
> > the error message indicates that you are passing the Grid-Stat
tool a
> > NetCDF file in a format that is not supported. Is it possible
that you
> > still are passing it the NetCDF wrfout file instead of the GRIB
output
> from
> > UPP?
> >
> > Let's take a step back and have you run the plot_data_plane tool
first.
> > That reads one field from a gridded data file and creates a plot
of it.
> > First, find one GRIB output file from UPP and run the following
command.
> > In my example, I call the GRIB file "fcst.grb", but just
substitute in
> the
> > name of your file:
> >
> > met-5.1/bin/plot_data_plane fcst.grb temp_2m.ps 'name="TMP";
> > level="Z2";'
> >
> > This should create a PostScript output image. If you can easily
display
> > those, try converting it to a png:
> >
> > convert -rotate 90 -background white -flatten temp_2m.ps
temp_2m.png
> >
> > Did that work? "TMP" is the GRIB code abbreviation for
temperature and
> > "Z2" indicates that we want a vertical level (Z) with a value of
2. So
> > this is a plot of 2-meter temperature.
> >
> > Hope that helps get you started.
> >
> > Thanks,
> > John Halley Gotway
> > met_help at ucar.edu
> >
> > On Mon, Feb 8, 2016 at 8:18 AM, BEN SALEM Nabil via RT <
> met_help at ucar.edu>
> > wrote:
> >
> > >
> > > Mon Feb 08 08:18:05 2016: Request 75011 was acted upon.
> > > Transaction: Ticket created by NBENSALEM at air-rhonealpes.fr
> > > Queue: met_help
> > > Subject: met_help : Used MET with NETCDF output model WRF
> > > Owner: Nobody
> > > Requestors: NBENSALEM at air-rhonealpes.fr
> > > Status: new
> > > Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=75011
> > > >
> > >
> > >
> > > Hello,
> > >
> > > Please, I need your help to launch MET tools.
> > > I used the last version of UPP to convert the WRF netcdf file
(output)
> > > to grib format. But when I use this last file (grib format) with
> > > Grid-Stat Met tools, I get the error message: "get_att() ->
global
> > NetCDF "Projection"
> > > not found"
> > >
> > > Well I have another question, how can I create a grib file (for
> > > several
> > > hours) with UPP tools ? (we used run_unipost_frames car we have
a wrf
> > > file with several dates)
> > >
> > > Thank you.
> > >
> > > Nabil
> > >
> > >
> > >
> > >
> > > -----Message d'origine-----
> > > De : John Halley Gotway via RT [mailto:met_help at ucar.edu] Envoyé
:
> > > jeudi 4 février 2016 19:03 À : BEN SALEM Nabil Objet : Re:
> > > [rt.rap.ucar.edu #74983] Used MET with NETCDF output model WRF
> > >
> > > Hello,
> > >
> > > I see that you have a question about using the MET point_stat
tool to
> > > verify output from WRF. MET isn't not designed to read the
NetCDF
> > > output of WRF directly. Instead, it must first be post-
processed
> > > using either the wrf_interp utility for WRF-ARW or the unified
post
> > > processor (UPP). UPP is preferable since it writes GRIB files
which
> MET
> > fully supports.
> > >
> > > I'm not familiar with "TEM" so I'd need some more information on
that.
> > >
> > > Hope that helps clarify.
> > >
> > > Thanks,
> > > John Halley Gotway
> > > met_help at ucar.edu
> > >
> > > On Thu, Feb 4, 2016 at 6:07 AM, BEN SALEM Nabil via RT
> > > <met_help at ucar.edu>
> > > wrote:
> > >
> > > >
> > > > Thu Feb 04 06:07:56 2016: Request 74983 was acted upon.
> > > > Transaction: Ticket created by NBENSALEM at air-rhonealpes.fr
> > > > Queue: met_help
> > > > Subject: Used MET with NETCDF output model WRF
> > > > Owner: Nobody
> > > > Requestors: NBENSALEM at air-rhonealpes.fr
> > > > Status: new
> > > > Ticket <URL:
> > > > https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=74983
> > > > >
> > > >
> > > >
> > > >
> > > > Hello,
> > > > Please, how I can use TEM with WRF output in NETCDF format?
> > > > Indeed, I can not run "point_Stat" with this format.
> > > > Thank you.
> > > > Nabil.
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > >
> > >
> >
> >
> >
>
>
>
>
------------------------------------------------
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