This folder contains the forecats for seasonal
precipitation. The control files describe the
metadata. For example (August Initial Condition),

AugIC_nmme_seasonal_precp_anom.ctl
has the following metadata.
-------------------------------------------
dset ^JunIC_nmme_seasonal_precp_anom.dat
undef -999.0
title prate.bin
options little_endian
xdef 360 linear 0.000000 1.0
ydef 181 linear -90.0 1.0
tdef 6 linear 15sep1982 1mo
zdef 1 linear 1 1
vars 2
precip 0,1,0   0,1,7,0 ** precip anom mm/day
anom 0,1,0   0,1,7,0 ** precip anom mm/day
ENDVARS
-------------------------------------------

Longitude dimension has 360 points, spaced 1deg
from 0 meridian progressing eastward.

Latitude Dimension has 181 points, spaced 1deg
from 90S to 90N.

Time dimension has the 6 seasonal forecasts.
For August Initial Condition the six forecasts
are for the seasona of 

SON (September-October-November)
OND
NDJ
DJF
JFM
FMA
 
The name of the variable is "anom".
The units are mm/day.
-------------------------------------------
A sample grads script (precip.gs) is provided