1200    'idm   ' = longitudinal array size
 1684    'jdm   ' = latitudinal  array size
    5    'mapflg' = map flag (-1=unknown,0=mercator,2=uniform,4=f-plane)
plon:  min,max =      -105.03246       67.92869
plat:  min,max =       -25.68285       76.46555
qlon:  min,max =      -105.01327       68.06400
qlat:  min,max =       -25.77059       76.47385
ulon:  min,max =      -105.02487       67.94304
ulat:  min,max =       -25.77049       76.46174
vlon:  min,max =      -105.02090       68.04965
vlat:  min,max =       -25.68287       76.47766
pang:  min,max =        63.96056      162.48834
pscx:  min,max =      2454.70020    25564.20898
pscy:  min,max =      2454.98901    25563.77148
qscx:  min,max =      2457.76855    25582.51758
qscy:  min,max =      2455.39111    25584.62695
uscx:  min,max =      2456.95361    25565.05664
uscy:  min,max =      2454.96460    25563.79492
vscx:  min,max =      2453.07397    25582.30273
vscy:  min,max =      2454.89307    25586.04102
cori:  min,max =   -0.0000634078   0.0001417973
pasp:  min,max =         0.99613        1.00406