DSET ^ersst_oisst_1x1_clim_81-10.daily.366.dat options big_endian UNDEF -9999. TITLE monthly * XDEF 360 LINEAR 0.5 1.0 * YDEF 180 LINEAR -89.5 1.0 * zdef 1 levels 0. * TDEF 366 linear 00Z01jan2000 1dy * VARS 1 sst 1 99 oisst ENDVARS