[Met_help] [rt.rap.ucar.edu #44041] History for PCPCombine

Wed Feb 23 14:41:55 MST 2011

----------------------------------------------------------------
  Initial Request
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Hi all, never got a response on my last question. 

New question - I am using PCP combine to sum up 24 hours of Stage IV data.
The file is attached is the NetCDF file I am using.  Also attached is the
config file.  When I run the following command line, I get the error
"ERROR:: process_fcst_obs_files() -> APCP(*,*) not found in file:
/h/data/global/WXQC/data/met/temp/pcpdir/combined_precip_file".  The
PCPcombine seemed to run normally and it output a NetCDF file.  So why the
error?

/sphome/qcteam/METv3.0/bin/mode
/h/data/global/WXQC/data/met/temp/pcpdir/wrf_pcp_data
/h/data/global/WXQC/data/met/temp/pcpdir/combined_precip_file
/sphome/qcteam/METv3.0/data/config/mode_pcp_config_wrf -outdir
/h/data/global/WXQC/data/met/mode/precip -v 3

Thanks

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  Complete Ticket History
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Subject: Re: [rt.rap.ucar.edu #44041] PCPCombine
From: John Halley Gotway
Time: Thu Feb 03 14:03:58 2011

Bob,

Hmmm, I'm not sure what your last question was.  I took a look in our
ticketing system, and see that you wrote on Jan 20th, 2011 with a
message titled "METv3.0 Problem with NAM".  Also, on that day,
you sent a message titled "Grid Stat Question".  It looks like I
responded to the first question and Paul to second on that same day.
Are these the questions to which you're referring, or was it
something else?

Regarding this problem, in the MODE config file, please change
"APCP/A24" to "APCP_24(*,*)" or just "APCP_24".  For METv3.0, we added
support for reading the NetCDF output of the pinterp tool - used
by ARW folks.  For simplicity, we decided that when reading NetCDF
files, we should use the values in the fcst_field and obs_field
settings to specify the name of the NetCDF variable to read.  There
are comments about this in config files:
METv3.0/data/config/WrfModeConfig_default.  But since you're using the
config file GUI, you probably wouldn't have seen those.

If you do an "ncdump -h" on that file, you'll see that the variable
you want to read is named "APCP_24".

Fortunately, it's an easy change.

Please let us know if any other issues come up - or if there was
another question you had that got lost in the ether somewhere.

Thanks,
John

On 02/03/2011 01:41 PM, RAL HelpDesk {for Craig, Robert J Civ USAF
AFWA 16 WS/WXN} wrote:
>
> Thu Feb 03 13:41:07 2011: Request 44041 was acted upon.
> Transaction: Ticket created by craigr at offutt.af.mil
>        Queue: met_help
>      Subject: PCPCombine
>        Owner: Nobody
>   Requestors: craigr at offutt.af.mil
>       Status: new
>  Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=44041 >
>
>
> Hi all, never got a response on my last question.
>
>
>
> New question - I am using PCP combine to sum up 24 hours of Stage IV
data.
> The file is attached is the NetCDF file I am using.  Also attached
is the
> config file.  When I run the following command line, I get the error
> "ERROR:: process_fcst_obs_files() -> APCP(*,*) not found in file:
> /h/data/global/WXQC/data/met/temp/pcpdir/combined_precip_file".  The
> PCPcombine seemed to run normally and it output a NetCDF file.  So
why the
> error?
>
>
>
> /sphome/qcteam/METv3.0/bin/mode
> /h/data/global/WXQC/data/met/temp/pcpdir/wrf_pcp_data
> /h/data/global/WXQC/data/met/temp/pcpdir/combined_precip_file
> /sphome/qcteam/METv3.0/data/config/mode_pcp_config_wrf -outdir
> /h/data/global/WXQC/data/met/mode/precip -v 3
>
>
>
> Thanks
>
>

------------------------------------------------
Subject: Re: [rt.rap.ucar.edu #44041] PCPCombine
From: John Halley Gotway
Time: Fri Feb 04 14:12:39 2011

Bob,

When running one of the grid-to-grid tools (Grid-Stat, MODE, and
Wavelet-Stat), they read the gridded forecast and observation fields.
>From each field, they extract the grid definition information
from the global attributes.  Then, the check to make sure those grids
are identical.  If not, the tools will error out.

If the x and y dimensions of your files do not match, then the grids
can't match either.  If that's the case, the tools will error out.

Now, if you're running them through PCP-Combine, I assume that your
files are all in GRIB format.  If that's the case, you could use the
copygb tool regrid them (fcst to obs, or obs to fcst) to a
common grid.  And then hopefully, they'd come out of the PCP-Combine
tool with the same dimensions and grid definition.

Hopefully that helps.  If not, please send me some sample data files
that illustrate the problem, and I'll look closer at it.

(I'm sending this message to you via MET-Help, but am also copying
your email address directly)

Thanks,
John

On 02/03/2011 01:41 PM, RAL HelpDesk {for Craig, Robert J Civ USAF
AFWA 16 WS/WXN} wrote:
>
> Thu Feb 03 13:41:07 2011: Request 44041 was acted upon.
> Transaction: Ticket created by craigr at offutt.af.mil
>        Queue: met_help
>      Subject: PCPCombine
>        Owner: Nobody
>   Requestors: craigr at offutt.af.mil
>       Status: new
>  Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=44041 >
>
>
> Hi all, never got a response on my last question.
>
>
>
> New question - I am using PCP combine to sum up 24 hours of Stage IV
data.
> The file is attached is the NetCDF file I am using.  Also attached
is the
> config file.  When I run the following command line, I get the error
> "ERROR:: process_fcst_obs_files() -> APCP(*,*) not found in file:
> /h/data/global/WXQC/data/met/temp/pcpdir/combined_precip_file".  The
> PCPcombine seemed to run normally and it output a NetCDF file.  So
why the
> error?
>
>
>
> /sphome/qcteam/METv3.0/bin/mode
> /h/data/global/WXQC/data/met/temp/pcpdir/wrf_pcp_data
> /h/data/global/WXQC/data/met/temp/pcpdir/combined_precip_file
> /sphome/qcteam/METv3.0/data/config/mode_pcp_config_wrf -outdir
> /h/data/global/WXQC/data/met/mode/precip -v 3
>
>
>
> Thanks
>
>

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