Re: [gembud] merging awip32-fixed.gem with a NARR sub-region

• To: "Patrick L. Francis" <wxprofessor@xxxxxxxxx>
• Subject: Re: [gembud] merging awip32-fixed.gem with a NARR sub-region
• From: Michael James <mjamesis@xxxxxxxxx>
• Date: Wed, 6 Feb 2013 11:41:57 -0700

Patrick and Peter,

you may need to use gdbiint first
https://www.unidata.ucar.edu/cgi-bin/gempak/manual/programs_index?gdbiint

to interpolate from one grid projection to another.

-mj

On Feb 6, 2013, at 10:59, "Patrick L. Francis" <wxprofessor@xxxxxxxxx> wrote:

> If you have a file with existing navigation parameters use GDMOD to move your 
> desired data into that spatial domain:
>  
> Ref: https://www.unidata.ucar.edu/cgi-bin/gempak/manual/programs_index?gdmod
>  
> If you need to create specific navigation parameters to suit your needs, use 
> GDCFIL to create from scratch, or ‘copy’ using CPYFIL:
>  
> Ref: https://www.unidata.ucar.edu/cgi-bin/gempak/manual/programs_index?gdcfil
>  
> Cheers,
>  
> --patrick
>  
>  
> --------------------
> Patrick L. Francis
> VP Media Logic Group
> http://www.medialogicgroup.com
> http://www.hamweather.com
> http://www.alertsbroadcaster.com
> http://www.modelweather.com
>  
> FB: http://www.facebook.com/wxprofessor
> --
>  
> From: gembud-bounces@xxxxxxxxxxxxxxxx 
> [mailto:gembud-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Peter Banacos - NWS 
> Federal
> Sent: Wednesday, February 06, 2013 11:55 AM
> To: gembud@xxxxxxxxxxxxxxxx
> Subject: [gembud] merging awip32-fixed.gem with a NARR sub-region
>  
> List:
>  
> I've downloaded a small sub-region of NARR data from NOMADS covering just a 
> portion of the NE CONUS and have converted the files to *.gem. 
>  
> I'm trying to add the awip32-fixed.gem file with these subdomain NARR files, 
> but the spatial domains don't match, obviously. I have no trouble adding this 
> grid file for the entire NARR domain. 
>  
> I thought it would be easy to "crop" the awip32-fixed.gem file to the same 
> lat/lon boundaries as my NARR data, and go from there, but I'm having 
> difficulty with this. Anyone have any ideas? Is there a better way? 
>  
> The raw metadata for the two files from GDINFO is listed below...
>  
> Thanks in advance for any assistance you can provide. 
>  
> Pete Banacos
> NOAA/NWS BTV
> -----
>  
>  GRID FILE: awip32-fixed.gem
>  
>  GRID NAVIGATION:
>      PROJECTION:          LCC
>      ANGLES:                50.0  -107.0    50.0
>      GRID SIZE:          349 277
>      LL CORNER:               1.00   -145.50
>      UR CORNER:              46.35     -2.57
>  
>  GRID ANALYSIS BLOCK:
>       UNKNOWN ANALYSIS TYPE
>  
>  Number of grids in file:    20
>  
>  GRID FILE: narr-a_221_20060114_2100_000.gem
>  
>  GRID NAVIGATION:
>      PROJECTION:          LCC
>      ANGLES:                50.0  -107.0    50.0
>      GRID SIZE:           24  22
>      LL CORNER:              42.52    -80.74
>      UR CORNER:              45.27    -68.77
>  
>  GRID ANALYSIS BLOCK:
>       UNKNOWN ANALYSIS TYPE
>  
>  Number of grids in file:   423
>  
> --
> Peter C. Banacos, Lead Forecaster
> NOAA/National Weather Service
> WFO Burlington, VT
> weather.gov/btv
> E-mail: peter.banacos@xxxxxxxx
> Phone: (802) 862-2475
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  • [gembud] merging awip32-fixed.gem with a NARR sub-region
    • From: Peter Banacos - NWS Federal
  • Re: [gembud] merging awip32-fixed.gem with a NARR sub-region
    • From: Patrick L. Francis