[MITgcm-support] Unwanted seiche caused by boundary condition on velocity

[Pär Jansson]

Hi all!
I'm modeling stratified (2-layer) flow over a fjord sill in MITgcm. Focusing on barotropic and baroclinic energy flux (u'p') etc.
I get an unwanted surface seiche caused by the model boundary conditions, which complicates the analysis;
The model (2dimensional x,z) velocity boundary condition u=A*sin(t*2*pi/T_tide) is applied in both western and eastern  boundary.
Any ideas on how to remove or reduce the seiche?

Best regards!
Pär

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