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[GEMPAK #CSS-861578]: NMAP2 topo help

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  • Subject: [GEMPAK #CSS-861578]: NMAP2 topo help
  • Date: Tue, 25 Apr 2006 13:02:27 -0600
> 
> Is it possible to see topography in NMAP2?
> I have already downloaded the topo file:
> http://www.unidata.ucar.edu/downloads/gempak/tables/unidata/world_topo.5min.gz
> 
> and placed it here:
> 
> $GEMTBL/unidata/world_topo.5min.gz
> 
> 
> Best regards,  Giovanni
> 
>

Giovanni,

After un-gzipping the downloaded 5min topo file, you can create a grid file for
Brazil such as:

 GDFILE   = brazil_topo.gem
 GAREA    = bz
 GDATTIM  = 060425/0000
 TOPOFL   = dem5
 GEMPAK-GDTOPO>

You could then create a data set alias for NMAP2 for that grid file and a 
restore
file for plotting the TOPO@0%pres field.

However, since your later question was about the topo AREA files, I've asked 
Tom Yoksas
about converting the DEM files to an AREA, which should be straight foward 
since the
DEM file is simply 16 bit little endian data with an 80 byte header. I'll let 
you know
when I have an AREA file made.

Steve Chiswell
Unidata User Support


Ticket Details
===================
Ticket ID: CSS-861578
Department: Support GEMPAK
Priority: Urgent
Status: Closed