DSET monstemp_upperlimit_8110
options little_endian
*
TITLE land_sea mask for 2x2 deg lat/lon grid (-1=ocean; +1=land)
*
UNDEF  -9999.0 
*
XDEF 36 LINEAR -130 2
*
YDEF 19 LINEAR 20. 2
*
ZDEF 01 LEVELS 1
*
TDEF 12 LINEAR JAN1987 1mo
*
VARS 1
r 1 0   XXXXX YYYYY
ENDVARS