Slab Ocean + Atmos Held-Suarez

[LenkaNovak]

Coupled GCM (Held-Suarez setup from RQA) with a shell slab ocean. This is the final piece of the test suite performed with the DGModel.

Design:

• README.md

Tests:

• conservation checks: dry SlabOcean w/o Held-Suarez forcing
  • results (June 23 section)
• physical checks: moist SlabOcean with Held-Suarez forcing
  • results (July 9 section)

Outstanding issues:

• diffusion can be added once available in the ESDGModel kernels
• currently, there is a bug in LMARS numerical fluxes, leading to conservation breaking at the boundary; as an alternative, Roe fluxes can be used (but their moist version is yet to be implemented, and in the dry case Roe fluxes have been found more unstable due to their less extreme smoothing at boundaries). Due to this issues, the above conservation tests were only performed on the dry setup with dry Roe fluxes.

[codecov]

Codecov Report

Merging #10 (83dc79f) into main (e743c9f) will not change coverage.
The diff coverage is n/a.

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  Hits           25       25           
  Misses         36       36           

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