GEMPAK Manual |
Programs
GDLIST lists data from a scalar grid.
INPUT PARAMETERS
GDATTIM Grid date/time
GLEVEL Grid level
GVCORD Grid vertical coordinate
GFUNC Scalar grid
GDFILE Grid file
GAREA Graphics area
PROJ Map projection/angles/margins|drop flag
SCALE Scalar scale / vector scale
OUTPUT Output device/filename
PROGRAM DESCRIPTION
GDLIST lists a diagnostic grid computed from the grids in a
GEMPAK grid file.
The data may be listed over a subgrid. The variables GAREA
and PROJ specify the data subset area. This area is only
approximate; the subgrid selected will cover the subset area.
GAREA must be specified as a geographic area, as an area
centered on a station, as latitude/longitude bounds or as
DSET or GRID. If DSET or GRID is chosen, the entire grid
will be printed.
Output to the terminal or to a file will be 80 columns wide.
If the output is sent to a file, the file will be named
gdlist.fil if no name is specified.
EXAMPLES
1. List the 850 mb dewpoint temperature for the 24 hour
forecast time. The data subset area is a zoomed area
centered on New York.
GDATTIM = /f24
GLEVEL = 850
GVCORD = PRES
GFUNC = dwpc
GDFILE = $GEMPAK/data/HRCBOB.GRD
GAREA = ny*
PROJ = lcc
SCALE = 999
OUTPUT = T
2. Compute the divergence at 300 mb and list the output
over the Eastern US. Write the output to a file
called div.east.
GDATTIM = /f24
GLEVEL = 300
GVCORD = PRES
GFUNC = div(wnd)
GDFILE = $GEMPAK/data/HRCBOB.GRD
GAREA = east
PROJ = lcc
SCALE = 999
OUTPUT = f/div.east
ERROR MESSAGES
[GDLIST +2] WARNING: ... not found. CONTINUING---
[GDLIST -1] Fatal error initializing TAE.
[GDLIST -2] Fatal error reading TAE parameters.