[Met_help] Point-Stat output issue

[John Halley Gotway]

Kathleen,

I think I figured out what's going on.  I tried running your data using the original release of METv2.0 and saw that it found no matched pairs.  However, when I ran it using the latest patches applied
to METv2.0, it did find 77 matched pairs and create output statistics.  FYI, adjust the matching time window with "beg_ds" and "end_ds" in the config file or "valid_beg" and "valid_end" on the command
line will affect the number of matched pairs it finds.

Here's the Point-Stat command I ran for your reference:
/d1/johnhg/MET/MET_Releases/METv2.0_patch/bin/point_stat \
   WRFPRS_d03_F000-24_2000100621.grb \
   case2_ascii.nc \
   PointStatConfig_case2 \
   -outdir out \
   -v 2

I've attached a log file, showing what Point-Stat writes to the screen (with the -v 2) option.
I've also attached a tar file containing the output of this command.  And each of the output files does contain several lines.

So I'd suggest that you retrieve the latest matches for MET, rebuild MET, and try again.  It should really only take you a few minutes.  Here's how you'd do that:
(1) Go to http://www.dtcenter.org/met/users/support/known_issues/METv2.0/index.php
(2) Save the file: METv2.0_patches_20090805.tar.gz
(3) Place that file in the top-level METv2.0 directory.
(4) Untar it: tar -xvzf METv2.0_patches_20090805.tar.gz
(5) Type:     make clean
    And then: make

Now I'm really not sure which patch is fixing your problem, but there's a description of them listed on the "known issues" site, and you're welcome to look through them.

And the answer to your other question is NO.  You should not cat together those files.  When you have multiple GRIB records for the same field in a single GRIB file, MET isn't able to distinguish them
as you'd like.  For example, if you have several records of 3-hourly accumulation of precip in one GRIB file that only differ by valid time, MET will always just use the first one.  So you should keep
the GRIB file output of WPP in separate files.  Sorry for the inconvenience.

Just let me know if any more problems come up.

Thanks,
John

Kathleen Carroll wrote:
> John,
> 
> I have run my WRF output through WPP.  I can now run Point-Stat; however,
> when I check my output the only thing in the files is the header
> information.  I have uploaded my data onto the ftp site for you and I have
> included the output I get when I run Point-Stat below.  If you would like me
> to upload the output files too I can, but like I said the only thing in
> there is the header info.
> 
> Also, I concatenated my WRFPRS output files into one big file for each
> domain.  I wasn't sure if that was ok to do or if I need to run each one
> separately.  If you have any suggestions on what works best as far as the
> WPP output goes I'd appreciate it.  There are quite a few output files after
> running WPP and I'm not quite sure which ones to use.
> 
> Thanks,
> 
> 
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