Use of USGS 30 arc second DEM in Grass
Brian K. Michalk
michalk at awpi.com
Mon Aug 4 14:23:56 EDT 1997
> I want to use USGS DEM 30 second data in Grass 4.1.5 for Linux I have not
> found a command to import it. If it can be converted to ascii file I think
> it can be imported to Grass. As you know a USGS DEM 30 second file covers a
> very vast area, so that I would like to import a part of one DEM file
> In this case, I think a binary file (for example w100n40.dem) has to be
> converted to ascii file and its data structure should be understood.
> Please let me know what should I do for my purpose? What should I learn at
Yes, there is a way to do it. The command is called in.sdts. It reads the
SDTS format used by the USGS. It's in the contrib area for download,
One problem though, you have to recompile for Linux. I have recompiled,
but cannot get it to work. I think the FIPS library has somehow
been corrupted. I have been unsuccessful in eliciting a response
from this mailing group. The best I figure is that there is no one here
using Linux and SDTS files.
I'm just waiting for someone do compile a linux binary distribution, or
create a makefile for Linux that works.
Brian Michalk |No, the |AWPI, home of *the* online magazine about Austin.
michalk at awpi.com|other one|Providing systems integration and internet solutions.
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