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[netCDFDecoders #DDA-176665]: dcgrib2 and DSS MRF data

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  • Subject: [netCDFDecoders #DDA-176665]: dcgrib2 and DSS MRF data
  • Date: Wed, 11 Oct 2006 14:48:48 -0600
Kristen,

Did you FTP these files? If so, there might be a problem
with needing to transfer them in binary mode. The decoder should
be able to find the GRIB delimeters otherwise. When you start FTP, make
sure you thpe "bin" at the ftp prompt. Otherwise, you may need to post a sample 
file
for me to look at.

If the data are on a 2.5 degree grid (eg grid #002), you should have no
trouble using the data in GEMPAK. If however, you have sperical harmonics 
rather than
gridpoints, GEMPAK will not handel those.

Steve Chiswell
Unidata User Support


> Hi-
> 
> I downloaded a couple of MRF forecast files from DSS at NCAR
> (http://dss.ucar.edu/datasets/ds084.0/).   The files are from 1997 and
> thus in GRIB format at 2.5 degree resolution.  I tried to degrib these
> files using dcgrib2 and got the following error message:
> 
> [28534] 061011/1245[DC 3]  Starting up. Version 5.9.1
> [28534] 061011/1245[DCGRIB -60] no 7777 found: bpos [18481] > griblength
> [18480]
> 
> repeated about 20,000 times.  I've looked at the Unidata help archives
> and see that the '7777' is supposed to be a marker to separate between
> dates, variables or grids.
> 
> Any help that you could provide as to what the problem is and how I
> might degrib this data would be much appreciated.
> 
> Thanks!
> 
> Kristen
> 
> --
> Kristen L. Corbosiero
> ASP / MMM
> National Center for Atmospheric Research
> P.O. BOX 3000
> Boulder, CO 80307-3000
> 
> Office: FL3 Rm.2068
> e-mail: address@hidden
> phone:  (303) 497-8185
> web: http://www.atmos.albany.edu/student/kristen/index.html
> 
> 


Ticket Details
===================
Ticket ID: DDA-176665
Department: Support GEMPAK
Priority: Normal
Status: Closed