computing divergence of QuikScat swath data

Hello all,

Has anyone used ncl to compute divergence of QuikScat swath data?

The crux of the issue is that the swath data is on an angled, non-fixed
grid, meaning that
a) rows and columns of U,V,Lat,Long do not align with the cardinal
directions, and
b) each point in the U,V arrays has a different Lat and Long (e.g: the
Lat/Long arrays are 2-D and unevenly spaced).

It will be fairly straightforward to write a routine to do this, but
first wanted to check: Are there any existing ncl routines that do this?
I haven't found any in the documentation.

Thanks,
Guillaume

-- 
guillaume mauger
http://ieng9.ucsd.edu/~gmauger/
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