20050212: Gempak - Grid 104

Mark,

GVCORD should be "none" for surface precip.
Check the "gdinfo" output for levels/coordinates available.

Steve Chiswell
Unidata User SUpport


>From: "Mark Yorsaner" <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200502130129.j1D1TK7F010848

>Institution: Florida State University
>Package Version: 5.6
>Operating System: Solaris
>Hardware Information: N/A
>Inquiry: I am a novice at GEMPAK, and I need to plot NGM  output on grid 104. 
> After entering GEMPAK, I have these parameters (I want to center output over 
> OK):
>
> GDATTIM   Grid date/time                    f24
> GLEVEL    Grid level                        0
> GVCORD    Grid vertical coordinate          PRES
> GFUNC     Scalar grid                       p06m
> GDFILE    Grid file                         ngm_20020612.grd
> CINT      Contour interval/min/max          0
> LINE      Color/type/width/label/smth/fltr  3
> MAP       Map color/dash/width/filter flag  1
> TITLE     Title color/line/title            1
> DEVICE    Device|name|x size;y size|color   XW
> SATFIL    Satellite image filename(s)        
> RADFIL    Radar image filename(s)            
> PROJ      Map projection/angles/margins|dr  nps
> GAREA     Graphics area                     ok
> CLEAR     Clear screen flag                 YES
> PANEL     Panel loc/color/dash/width/regn   0
> TEXT      Size/fnt/wdth/brdr/N-rot/just/hw  1
> SCALE     Scalar scale / vector scale       999
> LATLON    Line color/dash/width/freq/inc/l   
> HILO      Color/symbol/rng/rad/cnt/intp      
> HLSYM     HILO txt size/posn/font/wdth/hw    
> CLRBAR    Color/ornt/anch/x;y/ln;wd/freq|t   
> CONTUR    Subbox/smooth                     0
> SKIP      Skip_cntr/skip_plt_x;skip_plt_y   0
> FINT      Fill interval/min/max             0
> FLINE     Fill colors/fill types            10-20
> CTYPE     Contour type:  C/F                C
> LUTFIL    Enhancement lookup table filenam   
> STNPLT    Txtc/txt attr|marker attr|stnfil   
> IMBAR     Color/ornt/anch/x;y/ln;wd/freq|t   
>
>I get an error:  [GR -9]  Invalid grid or grid subset size.
> Parameters requested: GDATTIM,GLEVEL,GVCORD,GFUNC,GDFILE,CINT,LINE,MAP,
> TITLE,DEVICE,SATFIL,RADFIL,PROJ,GAREA,CLEAR,PANEL,TEXT,SCALE,LATLON,HILO,
> HLSYM,CLRBAR,CONTUR,SKIP,FINT,FLINE,CTYPE,LUTFIL,STNPLT,IMBAR.
>
>Could you kindly tell me what I'm doing wrong?
>
>Thanks,
>
>Mark Yorsaner
>
>
>
--
NOTE: All email exchanges with Unidata User Support are recorded in the
Unidata inquiry tracking system and then made publicly available
through the web.  If you do not want to have your interactions made
available in this way, you must let us know in each email you send to us.