[gembud] Degribbing Ukmet Grib1 from tgftp site

• To: gembud@xxxxxxxxxxxxxxxx
• Subject: [gembud] Degribbing Ukmet Grib1 from tgftp site
• From: pmanousos@xxxxxxxxxxxxxxxxxxx
• Date: Wed, 25 Sep 2013 13:33:40 -0400

Greetings.  We are receiving an NOBNDS - No grid points in graphics area 
[DG -40] Subset grid bounds cannot be computed message from gdplot3 on 
nagribbed ukmet files retrieved from the tgftp server.

We suspect it has something to do with the grib files and know just enough 
about grib to get by, but not enough to address this issue properly. It 
seems like some key piece of info in the grib message is missing causing 
GEMPAK to fail.

We have done searching on google, gembud, and experimented unsuccessfully 
with cnvgrb, dcgrib and ultimately get the same null result.

If anyone is successfully converting ukmet grib files from the tgftp 
server into GEMPAK grids (that are plottable in gdplot3) we would 
appreciate any advice. 

For reference here is how we get from the grib file to grid file:

Pull 
ftp://tgftp.nws.noaa.gov/SL.us008001/ST.opnl/MT.bmoav_CY.CC/RD.YYYYMMDD/PT.grid_DF.bb/fh.0012_t1.hight
 
(where CC is the current cycle and YYYYMMDD the present date)
Degrib using nagrib (output file is test.grd -- using GDS in CPYFIL and 
maxgrids=4000)
gdinfo on test.grd shows what you would expect (proper date/times, levels, 
gvcords, gridnames)
Plotting in gdplot3 yields the NOBNDS error 

Pete


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  • Re: [gembud] Degribbing Ukmet Grib1 from tgftp site
    • From: pmanousos