[MITgcm-support] momentum diagnostics

Matthew Mazloff mmazloff at MIT.EDU
Fri Jan 9 11:26:10 EST 2009

Hi Mike,

I don't think there is a pressure gradient diagnostic....and one  
reason for this is I believe it calculates this gradient twice in  
each time step (the correction step).

If your setup is not very fancy, calculating the pressure gradient  
from the pressure field as is done in the model is actually not that  
bad, because the model calculates the zonal gradients on the u point  
and the meridional gradient on the v point.  One can see how its done  
in calc_grad_phi_hyd.F.  Of course, if you have a fancy set-up it may  
get ugly....i'm not sure


On Jan 9, 2009, at 7:33 AM, Michael A. Spall wrote:

> In follow-up to my question yesterday, is nothing set up to save the
> pressure gradient terms in the momentum equation diagnostics?  If
> not, why?  Is there some complication?
> Thanks,
> Mike
> -- 
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> Michael A. Spall
> Department of Physical Oceanography
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