[MITgcm-support] Time-Dependent Periodic Forcings

[Suhani Dalal]

Hello,

I am trying to implement a time-dependent wind forcing in my model. Based
on documentation here,
https://mitgcm.readthedocs.io/en/latest/getting_started/getting_started.html
<https://mitgcm.readthedocs.io/en/latest/getting_started/getting_started.html,>,
it seems like the zonal and meridional wind files have to be 2D. But based
on prior examples, like in tutorial_global_oce_biogeo, and previous
documentation here,
https://mitgcm.org/public/r2_manual/latest/online_documents/node104.html,
the 3D configuration seems possible using periodicExternalForcing. I
followed the example and documentation for the time-dependent forcing
exactly, formatting it as (x,y,t), yet I am seeing numerical instabilities.

Does the model still support time-dependent periodic forcings? And if so,
could you explain the format of the input file/any other variations
required in the data file?

Thank you so much!

Best,
Suhani
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