INSTALL
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Go to the GMTSAR WIKI and follow the instructions. http://gmt.soest.hawaii.edu/projects/gmt5sar/wiki
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Download orbit files for just ERS and ENVISAT. The other satellites have orbits distributed with the data. https://topex.ucsd.edu/gmtsar/downloads/
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Go to the gmtsar directory and enter:
autoconf -
Configure GMTSAR: Run the configure script. To see all options, run
./configure --helpMost users will simply run
./configure --with-orbits-dir=<orbitsdir> --prefix=<installdir>For example, you might run
./configure --with-orbits-dir=/usr/local/orbits -
To build all executables, type
make make install -
test the commands: gmt, esarp, xcorr, conv, gmtsar.csh, etc. If using C-shell you may have to type rehash first. If this does not work then make sure the is in your system $PATH or $path.
RUN
- GET DATA. There is an example data set at our website: https://topex.ucsd.edu/gmtsar/downloads/
Uncompress the file and then unpack with tar.
- ORGANIZE the DISK. The standard GMTSAR run has the following directories.
raw SLC topo intf
raw - contains the original data.
SLC - contains the single look complex images derived from the raw data.
topo - contains a digital elevation model for the area in geographic and ultimately radar coordinates.
intf - contains subdirectories with the possible interferograms (only 1 for this example).
- MAKE DEM
Go to the following web site and construct a file dem.grd that encloses the SAR frame. https://topex.ucsd.edu/gmtsar/demgen
Place the file dem.grd in the /topo directory.
- EXAMPLE RUNS
There are complete examples for each data type at the following web site: https://topex.ucsd.edu/gmtsar/downloads/