extracting 1 degree DEM's

DCertain AB2668 at uokmvsa.backbone.uoknor.edu
Fri Feb 4 08:24:00 EST 1994





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> Date: Thu, 3 Feb 1994 14:53:44 -0800
> From: "Stephen G. Skartvedt" <sskartvedt at IGC.APC.ORG>
> Message-Id: <199402032253.OAA28488 at cdp.igc.org>
> Sender: grass-lists-owner at MAX.CECER.ARMY.MIL
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> To: grassu-list at MAX.CECER.ARMY.MIL
> Subject: extracting 1 degree DEM's
>
> Hello all -
>
> I'm having trouble converting a one degree DEM into GRASS
> format.  I ftp'ed two DEM's from 'resdgs1.er.usgs.gov',
> created a new LOCATION in lat/long.  But when I use
> m.dem.examine or m.dem.extract I get a zero coordinate
> for one edge.  GRASS also insists on reading it as UTM
> based.
>
> file #1
> SAN FRANCISCO - W
>
> min elevation: 0.000000  max elevation: 130.000000
>
> ns_res: 0.000000  ew_res: 0.000000
> # of columns in file = 0
>
> file north UTM = 136800.000000
> file south UTM = 133200.000000
> file east UTM = 0.000000
> file west UTM = -446400.000000
>
> So the values are all messed up.  Any ideas what I am
> doing wrong??
>
> Stephen Skartvedt
> Golden Gate NRA
> sskartvedt at igc.apc.org



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