use TripolarGrid for Oceananigans sim

[juliasloan25]

Purpose

Use a TripolarGrid instead of a capped lat/lon grid when constructing an Oceananigans simulation.

closes #1382

Note: Oceananigans.Fields.interpolate doesn't work for the TripolarGrid. We use this to remap Oceananigans fields from the OC grid to the ClimaCore field, so we can't switch to TripolarGrid until Oceananigans has a method that can regrid the TripolarGrid. This should be added in CliMA/ClimaOcean.jl#463 - required Oceananigans v0.99.2

To-do

• construct TripolarGrid instead of LatitudeLongitudeGrid

Notes

• TripolarGrid constructs a OrthogonalSphericalShellGrid, which also uses lat/lon, so we can still use the same ClimaCore remapper
• exchanged fields are T, S, LHF, SHF, u, v - only u and v are vectors, and these are already rotated onto the grid in set_from_extrinsic_vectors!

[glwagner]

@juliasloan25 how do I run the coupled simulation ? Is there a way to run it outside the caltech cluster (eg on a GPU system we have at MIT)?

[juliasloan25]

@juliasloan25 how do I run the coupled simulation ? Is there a way to run it outside the caltech cluster (eg on a GPU system we have at MIT)?

Sorry I just saw this - I get a lot of Github notifications so they get missed often. We have a docs page on running the coupled simulation. It shows how to run interactively or from the command line. You should be able to run it locally or on a different cluster, and it'll pick up the device to run on automatically (i.e. if a GPU is available it will run on GPU). Let me know if there are problems.

[juliasloan25]

Tracked in this issue now instead of a TODO: #1478