[Met_help] [rt.rap.ucar.edu #93784] History for MET(plus) config masking regions: alternative to 'grid = ["FULL"]; '?

[Minna Win via RT]

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  Initial Request
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Hello.  In my GridStatConfig and PointStatConfig files, I have 'grid =
["FULL"];, e.g. for FSS calculation:
//
// Verification masking regions
//
mask = {
   grid = ["FULL"];
   poly = [ "${polydir}/CONUS.nc"];
}

and the output would have stats for both "FULL" and "CONUS".  Is there a
way to set the grid to what's specified in the poly CONUS.nc?  For ConUS
verification, there'd be a bit of QPE coverage outside of CONUS.nc but it's
not as good as what's inside CONUS.nc, so I wouldn't need the verification
on "FULL", and if calculation for "FULL" can be skipped it'll save a lot of
time, esp. for neighborhood computations.

All the  GridStatConfig files in the use_cases seem to have grid = ["FULL"]
and the PointStatConfigs have grid = ${POINT_STAT_GRID} or ${PB2NC_GRID},
which I think is either "FULL" or "G236" (or other grids), not a masked
region.

Is there a way to set the "grid" above to just the area defined by
CONUS.nc, to eliminate the computation/output stats done on "FULL"?

Thank you -
Ying


---
Ying Lin
NCEP/EMC/Verification, Post-processing and Product Generation Branch
NCWCP Cubicle No. 2015
Ying.Lin at noaa.gov


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  Complete Ticket History
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Subject: MET(plus) config masking regions: alternative to 'grid = ["FULL"];'?
From: Minna Win
Time: Tue Jan 14 13:12:44 2020

Hello Ying,

It looks like you want to set your masking region to use just the
CONUS region.  I checked with a scientist who is familiar with
GridStat, and she stated that you can set the following:

mask = {
  grid = [];
  poly=[${polydir}/CONUS.nc"];
}

in your MET config file.

I hope this achieves what you were hoping.

Regards,
Minna

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Subject: MET(plus) config masking regions: alternative to 'grid = ["FULL"];'?
From: Ying Lin
Time: Tue Jan 14 17:06:29 2020

Hi Minna,

Thank you very much!  It seems to work.  It'll save both run time and
disc
space.

Please feel free to close this ticket at your convenience.

Ying
---
Ying Lin
NCEP/EMC/Verification, Post-processing and Product Generation Branch
NCWCP Cubicle No. 2015
Ying.Lin at noaa.gov



On Tue, Jan 14, 2020 at 3:12 PM Minna Win via RT <met_help at ucar.edu>
wrote:

> Hello Ying,
>
> It looks like you want to set your masking region to use just the
CONUS
> region.  I checked with a scientist who is familiar with GridStat,
and she
> stated that you can set the following:
>
> mask = {
>   grid = [];
>   poly=[${polydir}/CONUS.nc"];
> }
>
> in your MET config file.
>
> I hope this achieves what you were hoping.
>
> Regards,
> Minna
>

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Subject: MET(plus) config masking regions: alternative to 'grid = ["FULL"];'?
From: Minna Win
Time: Wed Jan 15 09:54:01 2020

Hello Ying,

Thank you for your update.  Closing this ticket.

Regards,
Minna

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