Micha, Thank you very much! I don't think the loss of a few pixels will be too bad — I'll give it a try.
Best, Tom On Wed, Mar 25, 2015 at 4:27 PM, Micha Silver <[email protected]> wrote: > > > On 03/25/2015 10:42 PM, Thomas Adams wrote: > > All: > > I have dowloaded a GeoTiff image file of global impervious surface area > (%) from http://ngdc.noaa.gov/eog/dmsp/download_global_isa.html: > 2010 January-June GeoTiff image > <http://ngdc.noaa.gov/eog/data/isa/EstISA_final.tif.gz> > > It looks like the extent goes slightly beyond +180 deg E and -180 deg W: > > micha@MS-Rebecca ~/Downloads $ gdalinfo EstISA_final.tif > ..... > Corner Coordinates: > Upper Left (-180.0041667, 75.0041667) (180d 0'15.00"W, 75d 0'15.00"N) > Lower Left (-180.0041667, -65.0041107) (180d 0'15.00"W, 65d 0'14.80"S) > Upper Right ( 180.0040227, 75.0041667) (180d 0'14.48"E, 75d 0'15.00"N) > Lower Right ( 180.0040227, -65.0041107) (180d 0'14.48"E, 65d 0'14.80"S) > .... > > Here's what worked for me: > gdalwarp -te -180 -65 180 75 -tr 0.0083 0.0083 EstISA_final.tif > estisa_fixed.tif > > Then I imported the fixed raster, and it displayed OK. This will shave off > a few pixels around the edges. But I don't think there's any way to avoid > that. > > > Using GRASS 7.0 on Ubuntu I'm actually able to import the file without > errors, but it will not display. On my Mac I can easily display the image > in Preview and I can drop the file into QGIS 2.4 and it also displays fine. > > I have tried many different options importing the GeoTiff file, but it > just will not display. If I use r.info the E-W and N-S bounds are correct > and the N-S resolution looks right (0:00:30 deg), but the E-W resolution is > very small (0:00:00.000335 deg); also… > > Rows: 16801 > Columns: 43201 > Total cells: 725820001 > > The data range is correct 0 -- 100 > > Any thoughts? > > Best, > Tom > > > > > This mail was received via Mail-SeCure System. > > > _______________________________________________ > grass-user mailing > [email protected]http://lists.osgeo.org/mailman/listinfo/grass-user > This mail was received via Mail-SeCure System. > > > > > -- Thomas E Adams, III 718 McBurney Drive Lebanon, OH 45036 1 (513) 739-9512 (cell)
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