[MITgcm-support] Internal tide simulation with multiple frequencies

[Jody Klymak]

Hi Rob,

When I have done remote internal tides, I have used rbcs in a large sponge, and simulated the incoming tide by nudging the velocity and density fields.  This works very well if your sponge area is large enough (on the order of mode 1 wavelength) and gentle enough.

Let me know if you need more details.  You can see https://doi.org/10.1175/JPO-D-16-0061.1 for how it turned out.

Cheers,   Jody


> On Jan 20, 2022, at  16:22 PM, Nazarian, Robert <rnazarian at fairfield.edu> wrote:
> 
> Hi,
> 
> I am using the MITgcm to simulate remotely-generated internal tides. I have a version of the simulation working with an M2-frequency internal tide and want to superimpose a K1-frequency internal tide. I know that I need to change obcs_calc to include both forcings (i.e. changing OBWu and OBWv), but I am unsure how to indicate that there are two U.init/V.init files to read (i.e. separate U.init and V.init files for each frequency). Has anyone else made this modification? Any help is greatly appreciated.
> 
> Best regards,
> Rob
> 
> Robert Nazarian, PhD
> Assistant Professor, Department of Physics
> Fairfield University
> (203) 254-4000 ext. 4115
> rnazarian at fairfield.edu<mailto:rnazarian at fairfield.edu>
> Twitter: @fairfielduphys
> Instagram: fairfielduphysics
> 
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