[gradsusr] Computing the vertical velocity by the omega equation

[veiga]

Dear GrAds users,

Is there someone who knows where I can find a GrAds script which computes the vertical velocity through  the omega equation? 
Other methods like kinematic, adiabatic and quase-geostrophic relative vorticity, are welcome as well.   

Any hint will be very appreciated.

Cheers,

José Augusto P. Veiga, 

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Universidade do Estado do Amazonas 
Departamento de Meteorologia
Escola Superior de Tecnologia (EST)
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Skype: veiga_j.a.p.
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