[gradsusr] extract variable

[Muyin Wang]

Dear Grads Users:
I have a 40 year daily file from model outputs. Now I need to extract
variables for limited domain from the file, and connect them into a
single 40 year NetCDF file.
Does any one know the trick to do this? T
Thank you very much!
Muyin


Here is what it looks like in the .ctl file :

DSET      ^Data/2001/1dy.grd
TITLE     20C3M+A1B
OPTIONS   big_endian template yrev
UNDEF     -999
XDEF       128 LINEAR       0       2.8125
YDEF       64 LEVELS
-87.864 -85.097 -82.313 -79.526 -76.737 -73.948 -71.158 -68.368 -65.578
-62.787 -59.997 -57.207 -54.416 -51.626 -48.835 -46.045 -43.254 -40.464
-37.673 -34.883 -32.092 -29.301 -26.511 -23.720 -20.930 -18.139 -15.348
-12.558 -9.7671 -6.9765 -4.1859 -1.3953 1.3953 4.1859 6.9765 9.7671 12.558
15.348 18.139 20.930 23.720 26.511 29.301 32.092 34.883 37.673 40.464 43.254
46.045 48.835 51.626 54.416 57.207 59.997 62.787 65.578 68.368 71.158 73.948
76.737 79.526 82.313 85.097 87.864
ZDEF         1 LINEAR 1 1
TDEF     14976 LINEAR  12:00Z01JAN2000     1dy
VARS  8
T2           0 99 2m temperature [K]
q2           0 99 2m specific humidity [kg/kg]
slp          0 99 sea level pressure [hPa]
u10          0 99 10m zonal wind [m/s]
v10          0 99 10m meridional wind [m/s]
ssrd         0 99 surf.short.down [W/m**2]