DSET ^mask_gpcc_05_elevation.gra * UNDEF -999999.0 *UNDEF -999.9 * OPTIONS big_endian * TITLE Elevation at 0.5 deg resolution * XDEF 720 LINEAR 0.25 0.5 * YDEF 360 LINEAR -89.75 0.5 * ZDEF 1 LEVELS 1 * TDEF 1 LINEAR JAN1948 1mo * VARS 1 mask 1 99 elevation in m ENDVARS