dset p.conus.195001.201504
options  little_endian
title global daily analysis 
undef -999.0
xdef  150 linear  -129.25 0.50
ydef   60 linear   20.25 0.50
zdef 1 linear 1 1
tdef 30000 linear 01jan1950 1mo
vars 1
p    1  00 the grid analysis (mm/day)
ENDVARS