proj:       3
zone:       0
north:      90N
south:      90S
east:       180E
west:       180W
cols:       1000
rows:       500
e-w resol:  0:21:36
n-s resol:  0:21:36
top:        1.000000000000000
bottom:     0.000000000000000
cols3:      10000
rows3:      5000
depths:     1
e-w resol3: 0:02:09.6
n-s resol3: 0:02:09.6
t-b resol:  1