dset ^geo.1deg.grb title geog based on Navy 10 min using equal lon lat boxes undef 1e+20 dtype grib index ^geo.1deg.gmp xdef 360 linear 0.000000 1.000000 ydef 181 linear -90.000000 1.000000 zdef 1 levels 1013 tdef 1 linear 00Z1jan1 1dy vars 2 orog 0 8, 1, 0, 0 Model topography [m] sftlf 0 252, 1, 0, 0 Sfc type % land [%] endvars