[GRASSLIST:1731] RE: FW: EGM96

[Dieter Lehmann]

Hello Grasslist,
sorry, my message was queued and now it's comming through, while Markus had
sent this for my. Apologize for that.

I projected the data in GRASS and get good results, my question was because
someone had projected the data in ArcInfo and had 500m difference to the
correct location. I assuemd that it might get wrong without a given geoid, but
now I know better. It seems to me, that he had made some mistake, or GRASS
might be better...

Thanks,
Dieter


On 09-Apr-01 Dieter Lehmann wrote:
> Hello,
> 
> (this message might come twice, I get a returned mail because of an not
> reachable DNS-Server).
> 
> I need some advice in the area of projections...
> 
> How to create a location with the following attributes:
> 
> Projection: UTM
> Horizontal Datum: WGS84
> Geoid Model: EGM96 (thats the problem)
> Vertical Reference Mean Sea Level (MSL)
> 
> It seems, that GRASS have no idea about EGM96, is there another Geoid-name
> with
> the simular specifications?
> 
> Is the way correct to import the data into an UTM location, create a
> Gaus-Krüger location and import the data from the UTM-location with r.proj?
> 
> 
> 
> Thanks,
> Dieter
> 
> 
> 
> 
> ----------------------------------
> Dieter Lehmann
> University of applied Sciences
> Schelmenwasen 4-8
> D-72622 Nuertingen, Germany
> lehmann at fh-nuertingen.de
> Phone: +49 (0) 7022 404 Ext. 192 or Ext. 152
> Fax: +49 (0) 7022 404 Ext. 166
> 
> Date: 06-Apr-01
> Time: 15:28:25
> 
> ----------------------------------
> 
> --------------End of forwarded message-------------------------
> 
> ----------------------------------
> Dieter Lehmann
> University of applied Sciences
> Schelmenwasen 4-8
> D-72622 Nuertingen, Germany
> lehmann at fh-nuertingen.de
> Phone: +49 (0) 7022 404 Ext. 192 or Ext. 152
> Fax: +49 (0) 7022 404 Ext. 166
> 
> Date: 09-Apr-01
> Time: 13:56:47
> 
> ----------------------------------

----------------------------------
Dieter Lehmann
University of applied Sciences
Schelmenwasen 4-8
D-72622 Nuertingen, Germany
lehmann at fh-nuertingen.de
Phone: +49 (0) 7022 404 Ext. 192 or Ext. 152
Fax: +49 (0) 7022 404 Ext. 166

Date: Thu, 11-Apr-01 12:00:00 +0000 (GMT)
Time: 16:48:32

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