GEMPAK Manual |
Programs
GPNEXR2 displays NEXRAD level II products.
INPUT PARAMETERS
MAP Map color/dash/width/filter flag
GAREA Graphics area
PROJ Map projection/angles/margins|drop flag
RADFIL Radar image filename(s)
LATLON Line color/dash/width/freq/inc/label/format
PANEL Panel loc/color/dash/width/regn
TITLE Title color/line/title
TEXT Size/fnt/wdth/brdr/N-rot/just/hw flg
CLEAR Clear screen flag
DEVICE Device|name|x size;y size|color type
LUTFIL Enhancement lookup table filename
IMCBAR Color/ornt/anch/x;y/ln;wd/freq
TILT Radar beam elevation/tilt angle
RADPARM Radar parameter (dz, vr, sw)
RADTIM Radar composite current/dattim
PROGRAM DESCRIPTION
GPNEXR2 displays NEXRAD Level II products in ARCHIVE2 format.
RADFIL specifies the input level II file. A template may be
specified, with an optional site name (eg NEXRII|KDDC).
If a site name is provided, it will be used to replace the %SITE%
alias in the template name. The NEXRII template is provided
for ARCHIVE2 format files.
RADPARM is the Radar parameter to be displayed. Valid values are
dz (reflectivity), vr (radial velocity), sw (spectrum width).
TILT is the Radar beam elevation/tilt angle. TILT is a real number
that specifies the mean sweep evelation that is closest to
the specified value. If TILT is LIST, then the available levels will
be displayed and the user will be prompted for a value.
RADTIM is a valid GEMPAK date/time string or abbreviation. A time
range may be specified.
LUTFIL specifies the color enhancement table.
EXAMPLES
1. Display the most recent reflectivity for KDDC using the sweep with
mean elevation angle is closest to .5 degrees.
MAP = 6/1/1+3/1/2
GAREA = dset
PROJ = rad
RADFIL = NEXRII|KDDC
LATLON = 0
PANEL = 0
TITLE = 31
TEXT = 1
CLEAR = YES
DEVICE = xw
LUTFIL = default
IMCBAR = 31/V/LL/.005;.05/.85;.01|.7/1/1/hw
TILT = .5
RADPARM = dz
RADTIM = last
2. Create an animation sequence for KDDC using data from
2330Z yesterday (July 29th) to 0030Z today (July 30th).
GAREA = dset
PROJ = rad
RADFIL = NEXRII|KDDC
LATLON = 0
PANEL = 0
TITLE = 31
TEXT = 1
CLEAR = YES
DEVICE = xw
LUTFIL = default
IMCBAR = 31/V/LL/.005;.05/.85;.01|.7/1/1/hw
TILT = .5
RADPARM = dz
RADTIM = 29/2330-30/0030
ERROR MESSAGES
[GPNEXR2 -1] Fatal error initializing TAE.
[GPNEXR2 -2] Fatal error reading TAE parameters.
[GPNEXR2 -3] Fatal error initializing GEMPLT.