dset ^sic.gr
undef -999.0
title sio_2016_mask.dat
options little_endian
ydef 120 linear 30.25 0.5
xdef 720 linear 0.25 0.5
zdef  20 linear 1 1
tdef 9 linear 1Aug2018 1mo
vars 1
SIC  20 1,0,0  mask (-)
ENDVARS