dset ^sst_clm1pnt_1950_2002.grd title pentad climatology undef -1.e+10 options little_endian xdef 360 linear 0.5 1.0 ydef 180 linear -89.5 1.0 zdef 1 levels 0 tdef 73 linear 1jan0000 5dy vars 1 v 0 99 climatology endvars