[MITgcm-support] Problem with Kelvin wave speed

[Eleanor Anne O'Rourke]

Dear all,

I am having problems simulating Kelvin waves which travel at the correct speed.  I am using the global 90x40x15 example but with resolution at 0.2deg to resolve the Kelvin waves adequately and a 120x10 domain.  My setup is a two layer box with the top layer at 15C and the bottom at 5C.  The forcing is through a rbcs temperature relaxation in the top left corner of the domain including a sponge surrounding the forcing region.

My theoretical calculations suggest a Kelvin wave speed of around 3.5ms-1 with the above set up but currently my model simulated waves are travelling at less than 1ms-1.

Any help would be very much appreciated.  I have attached my data and data.rbcs files.

Thanks,

Eleanor

Eleanor O'Rourke
Proudman Oceanographic Laboratory
Joseph Proudman Building
6 Brownlow Street
Liverpool
L3 5DA
Direct line: +44 (0)151 795 4951

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