initial upload

gm3d/doc/gravity_model/forward_modeling.sh

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+#!/bin/bash
+# set model parameters
+cat <<- EOF > model_list.txt
+	regular_block add 0.5 200/800/200/300/50/150
+	tilted_block add 1.0 300/500/400/600/100/300/500/600/800/350
+	sphere add 0.8 700/700/250/100/250/100
+EOF
+# construct model
+gm3d -o forward_model.msh -m model_list.txt -d 12.5/25/987.5/12.5/25/987.5/12.5/25/387.5 -e "density_model_(g/cm^3)"
+# forward modeling of the model's gravity and gravity gradient data
+gm3d -i forward_model.msh -f forward_g.txt -e "density_model_(g/cm^3)" -p 4/8/1020/4/8/1020/50 -t Vz
+gm3d -i forward_model.msh -f forward_g_x.txt -e "density_model_(g/cm^3)" -p 4/8/1020/4/8/1020/50 -t Vzx
+gm3d -i forward_model.msh -f forward_g_y.txt -e "density_model_(g/cm^3)" -p 4/8/1020/4/8/1020/50 -t Vzy
+gm3d -i forward_model.msh -f forward_g_z.txt -e "density_model_(g/cm^3)" -p 4/8/1020/4/8/1020/50 -t Vzz
+# mapping
+xyz2grd forward_g.txt -Gforward_g.nc -R4/1020/4/1020 -I8/8 -i0,1,3
+gmtxy-image -i forward_g.nc -u mGal -a "y (m);x (m)" -t 256,256
+
+xyz2grd forward_g_x.txt -Gforward_g_x.nc -R4/1020/4/1020 -I8/8 -i0,1,3
+gmtxy-image -i forward_g_x.nc -u Eo -a "y (m);x (m)" -t 256,256
+
+xyz2grd forward_g_y.txt -Gforward_g_y.nc -R4/1020/4/1020 -I8/8 -i0,1,3
+gmtxy-image -i forward_g_y.nc -u Eo -a "y (m);x (m)" -t 256,256
+
+xyz2grd forward_g_z.txt -Gforward_g_z.nc -R4/1020/4/1020 -I8/8 -i0,1,3
+gmtxy-image -i forward_g_z.nc -u Eo -a "y (m);x (m)" -t 256,256

gm3d/doc/gravity_model/model_list.txt

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+regular_block add 0.5 200/800/200/300/50/150
+tilted_block add 1.0 300/500/400/600/100/300/500/600/800/350
+sphere add 0.8 700/700/250/100/250/100