data set extracted using NCL and read_wrf_nc slightly varies

Hi there,

I am forwarding this question to both ncl_talk and wrfhelp, because i
think it is related to both forums, i don't know which one is more
appropriate though.

When I extract data (vertical profile or time series) using NCL, it is
slightly different form the data extracted using WRF utility
'read_wrf_nc', for the same time periods and vertical levels. Could you
please advice why there is difference between two extracted datasets

For NCL i am using the following to extract data
----------------------
a = addfile("wrfoutfile","r")
u = a->U(12,0:31,49,49)
v = a->V((12,0:31,49,49)
w=a->W(12,0:31,49,49)

print(u)
print(v)
print(w)
-----------

Regards.

-- 
---
Basit A. Khan
PhD Candidate
Centre for Atmospheric Research
Department of Geography
University of Canterbury  Te Whare Wananga o Waitaha Private Bag 4800 
Christchurch 8020, New Zealand
Tel: (643) 364 2987 Ext. 7912
Fax: (643) 364 2907
bak41_at_student.canterbury.ac.nz 
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