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Using the data on http://e4ftl01.cr.usgs.gov/SRTM/SRTMGL3.003/2000.02.11/ seems like a good option. Does anyone know if this site will be maintained?


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There is a SRTM v4 version with gaps filled using the method described in Reuter et al (2007). It is availalbe on the cgiar Website. Note that users are prohibited from any commercial, non-free resale, or redistribution without explicit written permission from CIAT. Personnally I've found that the version from Jonathan de Ferranti was slightly better ...


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The following is the Java source code for the Import SRTM tool in the open-source GIS Whitebox GAT, for which I am a developer. You can use it as an example for how to convert the endianness of the data to that of the system. https://code.google.com/p/whitebox-geospatial-analysis-tools/source/browse/trunk/ImportExport/src/plugins/ImportSRTM.java Feel free ...


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SRTM data are distributed in a few common formats including *.hgt files, the DTED format, and the more common *.tif file format. Both of these are raster formats and the elevation values are stored directly in each pixel of the raster grid. You see the 'Z' value in the image below that displays as you move your cursor across the image. Each pixel contains an ...


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Compression doesn't work well in the process of generating a new file with "tiled=yes" or above a certain file size. I solved this problem as supposed by Michael: Create your hillshade by compressing it with lossless LZW. In my example, the whole planet warped with 500 meter resolution, the hillshade-500.tif consumes 131 GB. gdaldem hillshade -z 4 ...


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Yep, thats about right. We haven't yet fully implemented outputting elevation profiles.


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I found a way to solved it, is not a very best practice solution though. I did it in 3 separate ways. Using model builder I do a batch slope conversion Using python script I get raster properties (MAXIMUM) and do a mathematic calculation of it then write the result into a dbf file (you need this http://dbfpy.sourceforge.net/) Using model builder I do ...



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