[MITgcm-support] nonlinear free surface and eta

Jean-Michel Campin jmc at ocean.mit.edu
Fri Jan 26 11:25:20 EST 2007


Martin is right, and you can also find a lot of information
about OBCS (and Eta) searching the mitgcm.org web site.
for instance:

On Wed, Jan 24, 2007 at 05:40:11PM -0800, Riema Rachmayani wrote:
> hi, all
> why we have to choose nonlinear surface or nonhydrostatic in internal wave verification, we cant use both in the same time?? as i know...evolution of solitary wave is much better if we use nonlinear freesurface and nonhydrostatic.
> in my case, i choose nonhydrostatic mode rather than nonlinear free surface, as consequences of  it i cant describe OB*Eta at open boundaries, well, i have try to describe OBWEta and OBEEta in obcs_calc.F, but in obcs_apply_eta.F, there some code to set eta = zero at open boundaries except when we use nonlinear free surface, so i always have zero value at open boundaries for eta, any idea to solve it?? where i can found connection between eta(1), eta (2), eta(Nx), eta(Nx-1)??
> thank you all,
> regards, 
> rima
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