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IDL Grib Routines [message #85511]

Wed, 14 August 2013 09:57

Chip Helms
Messages: 24
Registered: November 2012

Junior Member

Hi all,

I'm trying to read GFS model winds out of grib2 files using Mark Piper's helper routines and I've run into an issue. The record indices for the wind components are designated as floats with '.1' for UGRD and '.2' for VGRD. Since Mark Piper's grib helper routines assume that the index is an integer, they return UGRD data for both '.1' and '.2' indices. I'm curious if anyone else has run into this issue and if anyone knows a work around for it?

Here's an example of the wgrib2 inventory output for UGRD and VGRD variables as well as a variable that has an integer index for comparison:

109.1:18590308:d=2013081306:UGRD:850 mb:anl:
109.2:18590308:d=2013081306:VGRD:850 mb:anl:
110:19009437:d=2013081306:TMP:10 mb:anl:

The files I'm opening are the operational analysis (the same issue arises with the operation forecast files as well). Worst case scenario, I can convert the files to netcdf and then open them, but that is a rather time consuming process.

Thanks in advance,
Cheers,
Chip

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[Message index]

		IDL Grib Routines By: Chip Helms on Wed, 14 August 2013 09:57
		Re: IDL Grib Routines By: Fabzi on Wed, 14 August 2013 10:22
		Re: IDL Grib Routines By: Mark Piper on Thu, 22 August 2013 13:37

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