[gradsusr] Ensenble Handling in Grads

[azhar ehsan]

Hi All,

I have a problem regarding the handling the Ensembles in Grads.
I have 10 data files like (pos01.dat, pos02.dat, pos03.dat,.., pos10.dat)
with same time, X, Y and Z and T definations.  When i try to view this. It
is giving me the following error. Seems everything ok, but i dnt know why it
is giving this error.

"ga-> open eprcp.ctl
Scanning description file:  eprcp.ctl
Data file pos%e.dat is open as file 1
LON set to 0 360
LAT set to -87.159 87.159
LEV set to 925 925
Time values set: 1871:1:1:0 1871:1:1:0
E set to 1 1
ga-> q file
File 1 : Ensembles handeling
  Descriptor: eprcp.ctl
  Binary: pos%e.dat
  Type = Gridded
  Xsize = 96  Ysize = 48  Zsize = 1  Tsize = 139  Esize = 10
  Number of Variables = 1
     tpr  0  99  Total Precp               [mm/day]
ga-> q ens
Ensemble 1 named pos01 has 139 timesteps and begins at 00Z01JAN1871 (t=1)
Ensemble 2 named pos02 has 139 timesteps and begins at 00Z01JAN1871 (t=1)
Ensemble 3 named pos03 has 139 timesteps and begins at 00Z01JAN1871 (t=1)
Ensemble 4 named pos04 has 139 timesteps and begins at 00Z01JAN1871 (t=1)
Ensemble 5 named pos05 has 139 timesteps and begins at 00Z01JAN1871 (t=1)
Ensemble 6 named pos06 has 139 timesteps and begins at 00Z01JAN1871 (t=1)
Ensemble 7 named pos07 has 139 timesteps and begins at 00Z01JAN1871 (t=1)
Ensemble 8 named pos08 has 139 timesteps and begins at 00Z01JAN1871 (t=1)
Ensemble 9 named pos09 has 139 timesteps and begins at 00Z01JAN1871 (t=1)
Ensemble 10 named pos10 has 139 timesteps and begins at 00Z01JAN1871 (t=1)
ga-> set e 5
E set to 5 5
ga-> d tpr
Cannot contour grid - all undefined values "


Advance thanks for any suggestion/help.

Regards:

-- 
Muhammad Azhar Ehsan
M.Sc. Student

Department of Meteorology
King Abdulaziz University
P. O. Box 80234
Jeddah 21589
Saudi Arabia

Email:   azhar.ehsan82 at gmail.com
Mobile:  (+966) 55 1276318
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