Moin Robert, On Fri, Jul 10, 2020 at 6:42 PM Robert Nuske <rsn.mailingli...@gmail.com> wrote: > > Moin Markus & Markus, > > did you use the NASADEM further than importing it in GRASS?
Well, I used it like a DEM.. > I need a DEM for Germany + 10km Buffer. So, I thought NASADEM would be a > natural fit and am now trying to get a handle on this dataset. > > The import with r.in.nasadem in a WGS84 Location just worked. > Thanks a lot metzm! > > The NASADEM documentation states, that the height of the merged DEM > (NASADEM_HGT) is above EGM96 geoid and not WGS84 ellipsoid. I have no clue > how to get from there to UTM32 with a height reference comman in Germany > (DHHN92). > > > Do you have any solutions or hints how to proceed? According to the answer here https://gis.stackexchange.com/questions/361240/are-wgs84-latlon-coordinates-and-egm96-latlon-coordinates-the-same-and-differenc the math would be a r.mapcalc formula. Time ago I played with https://grasswiki.osgeo.org/wiki/Global_datasets#EGM2008_Geoid_Data_.28Earth_Gravitational_Model.29 The EGM96 data appear to be here as interpolated grid: https://earth-info.nga.mil/GandG/update/index.php?action=home Please let us know how it goes. Best, markusN _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/grass-user