#
#
# first construct the velocity grids
#
awk '{print $1-360., $2, $3}' < sandwell_vel.llen > llve.dat
awk '{print $1-360., $2, $4}' < sandwell_vel.llen > llvn.dat
surface llve.dat -T.5 -R-125./-114./31.5/42.0 -I.01 -V -r -Gve_tot.grd
surface llvn.dat -T.5 -R-125./-114./31.5/42.0 -I.01 -V -r -Gvn_tot.grd
#
# use the strain rates from the strain rate file because they are better
#