dset ^TOPO.T106
title "T106 TOPOGRAPHY"
undef -999.9
options big_endian yrev
xdef 144 linear   0.0 2.5
ydef  73 linear -90.0 2.5
zdef 1 linear 1.0 1.0
tdef 1 linear 0Z2jan1987  1dy
vars 1
topo     0    1,  1,  0,  0 topography [m]
endvars