initial upload

cookbook/dem_brasil/dem_brasil.bat

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+
+
+:: First, insert the density information into
+:: the DEM file using the Python script.
+python dem_density.py dem.xyz > dem-dens.txt
+
+:: Next, use the modified DEM with tessmodgen
+:: to create a tesseroid model
+tessmodgen -s0.166667/0.166667 -z0 -v < dem-dens.txt ^
+> dem-tess.txt
+
+:: Calculate the GGT on a regular grid at 250km
+:: use the -l option to log the processes to files
+:: (usefull to diagnose when things go wrong)
+:: The output is dumped to dem-ggt.txt
+tessgrd -r-60/-45/-30/-15 -b50/50 -z250e03 | ^
+tessgxx dem-tess.txt -lgxx.log | ^
+tessgxy dem-tess.txt -lgxy.log | ^
+tessgxz dem-tess.txt -lgxz.log | ^
+tessgyy dem-tess.txt -lgyy.log | ^
+tessgyz dem-tess.txt -lgyz.log | ^
+tessgzz dem-tess.txt -lgzz.log -v > dem-ggt.txt