CONDUIT users and Gembuds,
As you know, the CONDUIT data feed recently dropped the NAM 104 grids
in GRIB1 format. We are receiving the 90-km NAM grids in GRIB2 format
under the following pqact entry:
CONDUIT /nam\.t(..)z\.grbgrd.*grib2
Most everything looks fine; however, when I convert these files to
GEMPAK using dcgrib2 from 5.9.4, 5.10.3, or 5.10.4, the PMSL field is
all fouled up. The following URL shows what I get for a 'CINT=0' setting:
http://www.atmos.washington.edu/~ovens/2007110600_badpmsl.gif
Here's how I decoded the file:
$GEMEXE/dcgrib2 -d - 2007110600_nam104.gem < \
/home/disk/data/conduit/nam.20071106/nam.t00z.grbgrd00.tm00.grib2
I suspect this is a problem with the GRIB2 file (my first guess) or
the way GEMPAK is decoding the sea-level pressure field.
Does anyone have a fix for this yet?
Thanks,
David
--
David Ovens e-mail: ovens@xxxxxxxxxxxxxxxxxxxx
Research Meteorologist phone: (206) 685-8108
Dept of Atm. Sciences plan: Real-time MM5 forecasting for the
Box 351640 Pacific Northwest
University of Washington http://www.atmos.washington.edu/mm5rt
Seattle, WA 98195 Weather Graphics and Loops
http://www.atmos.washington.edu/~ovens/loops
