question about wrf_user_intrp3d

Hi, folks,

I have a question about using wrf_user_intrp3d.

I would like to plot cross section from point A (220,345) to point B
(170,280). However, ncl return zero value, and in the variable summary, it
writes: Orientation : Cross-Sesion: (220,345) to (220,345). But when I
change point B to (170, 345) for example, then wrf_user-intrp3d works fine.
Any ideas?

Thanks much!

Zheng

code:
plane=(/ 220,345,170,285/)
        cc_p= wrf_user_intrp3d(cc,z,"v",plane,0.,True)
        rc_p = wrf_user_intrp3d(cr,z,"v",plane,0.,True)

printVarSummary(cc_p)

Variable: cc_p
Type: float
Total Size: 31200 bytes
            7800 values
Number of Dimensions: 2
Dimensions and sizes: [Vertical | 100] x [Horizontal | 78]
Coordinates:
Number Of Attributes: 4
  _FillValue : 9.96921e+36
  units : kg kg-1
  description : Cloud water mixing ratio
  Orientation : Cross-Sesion: (220,345) to (220,345)

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Received on Sat Mar 3 22:24:26 2012