Hi gembud,
We recently upgraded to GEMPAK7.4.1 on our machine running LDM, mainly to
alleviate the issue where the files being created for the NAM didn’t have a
large enough maximum number of grids to accommodate all of the fields since the
NAM upgrade last spring. The release notes mention this fix in 7.4.1.
However, I seem to still be encountering the same problem, namely that the file
is only getting created with a maximum # of grids of 31999 regardless of what
number is set in the call to dcgrib2. Just as an example when running from the
command line…I set ‘-m 100000’ but still end up with a maximum number of grids
in file of 31999. Is there something else we need to do to allow for the
larger # of grids?
Thanks!
Russ
[rschumac@argun ~]$ dcgrib2 -v 1 -m 100000 -e GEMTBL=$GEMTBL
YYYYMMDDHH_nam212_gem7.gem <
/ldm-data/model_grib/nam/20170925/nam212.2017092512_f84.grb2
Opening WMO Originating Center Table wmocenter.tbl...
Opening WMO GRIB2 Parameter Table g2varswmo2.tbl...
Opening WMO GRIB2 Vertical Coordinate Table g2vcrdwmo2.tbl...
Opening Local GRIB2 Parameter Table g2varsncep1.tbl...
Opening Local GRIB2 Vertical Coordinate Table g2vcrdncep1.tbl...
[rschumac@argun ~]$ gdinfo
GDFILE Grid file 2017092512_nam212_gem7.gem
LSTALL Full list flag YES
OUTPUT Output device/filename T
GDATTIM Grid date/time LAST
GLEVEL Grid level 500
GVCORD Grid vertical coordinate PRES
GFUNC Scalar grid TMPC
Parameters requested: GDFILE,LSTALL,OUTPUT,GDATTIM,GLEVEL,GVCORD,GFUNC.
GEMPAK-GDINFO>r
GRID FILE: 2017092512_nam212_gem7.gem
GRID NAVIGATION:
PROJECTION: LCC
ANGLES: 25.0 -95.0 25.0
GRID SIZE: 185 129
LL CORNER: 12.1900 -133.4590
UR CORNER: 57.2893 -49.3860
GRID ANALYSIS BLOCK:
UNKNOWN ANALYSIS TYPE
Number of grids in file: 658
Maximum number of grids in file: 31999
[GDU 2] Did not find any matching grids.
Parameters requested: GDFILE,LSTALL,OUTPUT,GDATTIM,GLEVEL,GVCORD,GFUNC.
GEMPAK-GDINFO>
--
Russ S. Schumacher
Associate Professor
Department of Atmospheric Science
Colorado State University
e-mail: russ.schumacher@xxxxxxxxxxxxx
phone: 970.491.8084
web: http://www.atmos.colostate.edu/faculty/schumacher.php
