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[AWIPS #DTH-159534]: EDEX grib2 processing question

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  • Subject: [AWIPS #DTH-159534]: EDEX grib2 processing question
  • Date: Thu, 29 Sep 2022 14:10:51 -0600
Hi Pete,

> Greetings. Two model grib files have identical projections and the same 
> Center, Subcenter, and
> process id (conusarw and conusmem2 - both conus 5km grids with Center=7, 
> Subcenter of 0, and 
> Process ID=116).
>
> Our work-around is to re-write the process id of one of those files using 
> wgrib2 utility.
> 
> Is there a recommended way to handle this so that they both don't get 
> processed as HiRes-ARW-US?


Quick clarification, you can have multiple products with the same 
center-subcenter-processId combo
while being different products.  The issue with conflicts would happen if all 
of the projection
info is exactly the same, for two different products/sources.

Not knowing exactly what type of projection the grib file is, I will refer to 
the example below:

<latLonGridCoverage>
 <name>255114</name>
 <description>ECMWF</description>
 <la1>90.000</la1>
 <lo1>180.000</lo1>
 <firstGridPointCorner>UpperLeft</firstGridPointCorner>
 <nx>900</nx>
 <ny>451</ny>
 <dx>0.400</dx>
 <dy>0.400</dy>
 <spacingUnit>degree</spacingUnit>
</latLonGridCoverage>

If your products were a lat lon projection, they would both need to have the 
exact same lat (la1),
lon (lo1), starting point, nx, ny, dx, and dy values.
Do both of your products have the exact same info for all of that?


--Shay Carter

She/Her/Hers
AWIPS Software Engineer
UCAR - Unidata

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Ticket Details
===================
Ticket ID: DTH-159534
Department: Support AWIPS
Priority: Normal
Status: Open
===================
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