DSET ^ao_daily_99_10.dat
*options big_endian
*options 365_day_calendar
*
*UNDEF -9999.
UNDEF -999.9
TITLE Daily AO
*Data from NARR on 1x1 grid
XDEF 1 linear 1 1
YDEF 1 linear 1 1
ZDEF 1 linear 1 1
TDEF 4748 LINEAR 1jan1999 1dy
*
VARS 1
index  1 99    Index 
ENDVARS