dset ^land25.sfc
index ^land25.idx
undef 9.999E+20
title NCEP/NCAR Reanalysis land mask interpolated to 2.5 x 2.5 degree grid
*  produced by grib2ctl v0.9.12.5p32c
dtype grib 2
options yrev
ydef 73 linear -90.000000 2.5
xdef 144 linear 0.000000 2.500000
tdef 1 linear 00Z01jan1985 1mo
zdef 1 linear 1 1
vars 1
LANDsfc  0 81,1,0 ** surface Land cover (land=1;sea=0) [fraction]
ENDVARS