[GRASS-user] nad83 (grs80) and wgs 84 question

stephen sefick ssefick at gmail.com
Thu Aug 19 09:53:44 EDT 2010


All,
I created a mapset over a year ago in utm 17 grs80 and found out
yesterday that I did not input the nad83 datum.  I have been working
in this location and have done a great deal of work pulling data in
and processing lidar etc.  GRASS has been pulling things in with the
caveat that the locations seem to match (and I think assuming the
datum was wgs).  I have been using nad83 etc. for all of the data that
I have been bringing in religiously.  Can I now set the datum with
r.proj to nad83 without significant data corruption?

-- 
Stephen Sefick
____________________________________
| Auburn University                                   |
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| Auburn, Alabama                                   |
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|___________________________________|
| sas0025 at auburn.edu                             |
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|___________________________________|

Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods.  We are mammals, and have not exhausted the
annoying little problems of being mammals.

                                -K. Mullis


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