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EAMxx: water isotopes/tracers (ecosystem project) #8504

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@rfiorella

This issue is meant to track matters arising from EAMxx implementation of water isotopes / tracers as part of my ECRP ecosystem project.

I have discussed this with a few members of the EAMxx team, but to provide a 30,000-foot (100,000 ft?) overview of the expected design that I most recently discussed with @AaronDonahue and @bartgol:

  • register (optional) water_tracer and water_isotope processes
  • implementation details go in new folder: src/physics/water_tracers, including details about tracer type, isotope fractionation physics, etc.
  • process rates and conditions (e.g., T, RH) for phase changes from SHOC, P3, (and maybe ZM) will need to be exposed so that water_tracer and water_isotope processes can act on var_wtrace or var_wiso arrays.

Initial focus will be on minimal viable example first before expanding capability of new infrastructure. Subissues will be made from this one as necessary.

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EAMxxC++ based E3SM atmosphere model (aka SCREAM)fromESPR from an E3SM ecosystem project or other external effort

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