dset /cpc/home/wd52pp/data/attr/diag.nino34.jja.1948-cur.gr
undef 999.0
title Realtime Surface Obs
xdef    1 linear    0.000  1
ydef    1 linear    0.000  1
zdef    1 levels 500
tdef 999 linear jan1948 1yr
vars   1
sst   0 99 Type of Ob
endvars