Re: [gembud] DCGRIB2 incorrect conversion for NAM conusnest

Great! I guess some effort by the developers needs to be placed on finding out what the problem is with the MDGRB2 method since this seems to be an ongoing problem ...

On 05/11/2012 03:23 PM, Robert Seigel wrote:
Hi Kevin,

Thank you for responding. This worked!

Thanks,
Rob

On May 11, 2012, at 8:44 AM, Kevin R. Tyle wrote:

Hi Rob,

Out of curiousity, use the MDGDEC grib packing method in your dcgrib2 command:

e.g.

dcgrib2 -e MDMETH=MDGDEC ...

I have run into strange values in the v component of the wind before, when 
using the default (MDGRB2) grib packing method, although I've only seen this 
happen with global grids of v-wind on the -2 PVU surface.

The resulting GEMPAK file will be much larger than with the MDGRB2 method.

Let us know if this helps ...

--Kevin

_____________________________________________
Kevin Tyle, Systems Administrator
Dept. of Atmospheric&  Environmental Sciences
University at Albany
Earth Science 235, 1400 Washington Avenue
Albany, NY 12222
Email: ktyle@xxxxxxxxxx
Phone: 518-442-4578
_____________________________________________

On Thu, 10 May 2012, Robert Seigel wrote:

Hello,

I am having difficulty correctly converting the new NAM conus nest into GEMPAK 
using DCGRIB2. Most of the grids are converting correctly, however the v-wind 
fields are bogus. This results in a lot of spurious calculations, including 
WND. Is anyone else having this problem?

Thanks,
Rob
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--
_____________________________________________
Kevin Tyle, Systems Administrator
Dept. of Atmospheric&  Environmental Sciences
University at Albany
Earth Science 235, 1400 Washington Avenue
Albany, NY 12222
Email: ktyle@xxxxxxxxxx
Phone: 518-442-4578
_____________________________________________