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[AWIPS #CWJ-540985]: grb2 decode question.

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  • Subject: [AWIPS #CWJ-540985]: grb2 decode question.
  • Date: Thu, 28 Apr 2022 15:26:40 -0500
> Hi Tiffany - so we did create a new grid projection file called
> 
> /awips2/edex/data/utility/common_static/base/grib/grids/FE_48_by_23_grid_at_0.250000_degrees_horizontal_res.xml
> 
> And it contains the following
> 
> <latLonGridCoverage>
> <name>4823</name>
> <description>48 by 23 grid at 0.250000 degrees horizontal res</description>
> <firstGridPointCorner>LowerLeft</firstGridPointCorner>
> <nx>48</nx>
> <nx>23</ny>
> <dx>0.250000</dx>
> <dy>0.250000</dy>
> <spacingUnit>degrees</spacingUnit>
> </latLonGridCoverage>



Hi Pete,

This is what I used for my projection file (note the first gridPointCorner is 
UpperLeft, and I also added la1, and lo1 tags):

<latLonGridCoverage>
    <name>4823</name>
    <description>Petes GFS GUST</description>
    <la1>42.5</la1>
    <lo1>274.75</lo1>
    <firstGridPointCorner>UpperLeft</firstGridPointCorner>
    <nx>48</nx>
    <ny>23</ny>
    <dx>0.25</dx>
    <dy>0.25</dy>
    <spacingUnit>degree</spacingUnit>
</latLonGridCoverage>

 
> And when we copied the grib file (updated with todays data and date) we see 
> it is still being stored in the hdf5 dir as 
> GribModel:7:0:128-2022-04-28-00-FH-000.h5
> 
> So two follow up quesitons
> 
> 1. It is not clear if the <name> tag in the file above should be the same as 
> the <grid> or <name> tag in the model definition file below -- we thought it 
> was the former.  We will move on to the CAVE configuration after we get this 
> minor issue resolved (but thank you so far for that config info -- and you 
> are right we do all our confg on the server side - so it will be easy).
> 

The <name> tag in the projection file should be the same as the <grid> tag in 
the model definition file. 

> 2. We thought we read that after creating the file above we do NOT need to 
> restart ingest for the file above to be used - is that correct (because we 
> didn’t)

I am fairly certain you will need to restart EDEX, specifically edexGrib,  you 
can do this by running:

sudo service edex_camel restart ingestGrib

Let me know if that helps!

Thanks,

Tiffany Meyer
AWIPS Lead Software Engineer
UCAR-Unidata

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Ticket Details
===================
Ticket ID: CWJ-540985
Department: Support AWIPS
Priority: Critical
Status: Open
===================
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