Calculating div/grad and vector

Hi,

I am trying to calculate some energy conversion terms and boundary flux
for which I need to calculate divergence and gradient of some terms like
div(T'u') and grad(T - T') . So is it possible to calculate this in NCL?
Also I need vector wind so is there any function for calculating vector
for example U which is a function of u,v,omega.

Thanks,
Soumik

-- 
"Numbing the pain for a while will make it worse when you finally feel 
it.
  ~J.K. Rowling"
*****************************************
Soumik Basu
Graduate Student, Research Assistant
International Arctic Research Center
University of Alaska Fairbanks
Fairbanks,Alaska,USA
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