dset ^output_inv.grib
index ^output_inv.idx
undef 9.999E+20
title output_inv.grib
*  produced by grib2ctl v0.9.12.5p32l
dtype grib 255
options yrev
ydef 121 linear -90.000000 1.5
xdef 240 linear 0.000000 1.500000
tdef 1 linear 12Z01jan1989 1mo
zdef 1 linear 1 1
vars 2
LSMsfc  0 172,1, 0  ** surface Land/sea mask (0
Zsfc  0 129,1, 0  ** surface Geopotential (at the surface = orography) m**2 s**-2
ENDVARS