[MITgcm-support] geostrophic velocity in the model

[Dimitris Menemenlis]

Martin, thanks for reply.  The request was not for me but for
a PostDoc, Sab Kim, who is working with us, and he already has
a routine for computing geostrophic velocity based on ETA and T/S.

Also Ichiro has clarified the issue for me.  Because of the hydrostatic
approximation used in the model, ETA "is" the correct
reference to use for computing pressure at each depth, as you
have done in your matlab function to compute geostrophic currents.

Cheers, Dimitris


> Dimitris,
> 
> I have once written a matlab function that computes geostrophic
> thermal wind starting form the surface elevatation. But I implicitly
> assume that the surface elevation is all geostrophic, regardless of
> scales or anything else. I can provide you with this function, you'll
> have to adjust a little bit though.
> 
> Martin


-- 
Dimitris Menemenlis <menemenlis at jpl.nasa.gov>
Jet Propulsion Lab, California Insitute of Technology
MS 300-323, 4800 Oak Grove Dr, Pasadena CA 91109-8099
tel: 818-354-1656;  fax: 818-393-6720