Out of curiousity, use the MDGDEC grib packing method in your dcgrib2
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 Tyle, Systems Administrator
Dept. of Atmospheric & Environmental Sciences
University at Albany
Earth Science 235, 1400 Washington Avenue
Albany, NY 12222
On Thu, 10 May 2012, Robert Seigel wrote:
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?
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