BCC RegCM output data with Grads

[sajjad saeed]

Dear all,
I am using regional climate model of Beijing Climate Centre,China. I have a problem.  When I open the file I get this kind of message
....................................................................................
ga-> open daily_ave91.ctl
Scanning description file:  daily_ave91.ctl
Data file daily_ave_1991.bin is open as file 1
LON set to 42 110.5
LAT set to 0 44.5
LEV set to 1000 1000
Time values set: 1991:5:1:0 1991:5:1:0
Notice: Implied interpolation for file daily_ave91.ctl
 Interpolation will be performed on any data displayed from this file

..................................................................................................................................
Than I used the commond to check file variables

ga-> q file
File 1 : model-output on surface
  Descriptor: daily_ave91.ctl
  Binary: daily_ave_1991.bin
  Type = Gridded
  Xsize = 138  Ysize = 90  Zsize = 1  Tsize = 153
  Number of Variables = 17
    tamxd 0 99 daily maximum surface temperature (k)
    tamnd 0 99 daily minimum surface temperature (k)
    psdnd 0 99 daily averaged surface pressure (cb)
    soldd 0 99 daily averaged direct solar fluxat the surface (W/m2)
    difdd 0 99 daily averaged diffuse solar fluxat the surface (W/m2)
    frudd 0 99 daily averaged net upward longwave fluxat the surface (W/m2)
    sswdd 0 99 daily averaged upper soil moisture (mm)
    rswdd 0 99 daily averaged root zone soil moisture (mm)
    evapd 0 99 daily averaged evaporative flux (kg/m**2/s)
    senhd 0 99 daily averaged sensible heat flux (w/m**2)
    rnosd 0 99 daily accumulated surface runoff (mm)
    rnodd 0 99 daily accumulated total runoff (mm)
    rfddd 0 99 daily accumulated rainfall (mm)
    cqvdd 0 99 daily averaged column water vapor (g/m**2)
    cqcdd 0 99 daily averaged column cloud water (g/m**2)
    cqidd 0 99 daily averaged column cloud ice (g/m**2)
    dtaud 0 99 daily averaged cloud optical depth
.....................................................................................................................................

Now I want to see a variable

ga-> d rfddd
Notice:  Automatic Grid Interpolation Taking Place
Contouring: nan to nan interval inf

I donot get any display on the screen

I than selected set clevs 0 1 2

ga-> d rfddd
Notice:  Automatic Grid Interpolation Taking Place
Contouring at clevs =  0 1 2 3

I got the display at the lower (south) of the domain. This is a very small belt.

I am unable to recoganize the problem. Any help in this regard will be highly appreciated.

With regards

Sajjad Saeed


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