dset ^ausmidx.2010-2011.day.dat undef -9.96921e+36 options little_endian Title Australian Monsoon Index U850 (15S-5S,110-130E) xdef 1 linear 0.0 2.5 ydef 1 linear 0.0 2.5 tdef 365 linear 00Z01Aug2010 1dy zdef 1 levels 850 vars 1 idx 1 0 Monsoon Index using 850hPa wind data ENDVARS