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EAMxx: Code incorporating changes to mam4xx to support tunable aerosol properties.#8553

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Jul 15, 2026
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EAMxx: Code incorporating changes to mam4xx to support tunable aerosol properties.#8553
jeff-cohere merged 3 commits into
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jeff-cohere/eamxx/mamxx-tunable-aero-properties

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@jeff-cohere jeff-cohere commented Jul 10, 2026

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In order to allow aerosol species properties to be modified for tuning, we've had
to make some changes to mam4xx. This PR updates the mam4xx submodule and
updates the MAM atmosphere processes to accommodate these changes.

[BFB]

@jeff-cohere jeff-cohere added EAMxx C++ based E3SM atmosphere model (aka SCREAM) MAM4xx MAM4xx related changes labels Jul 10, 2026
@jeff-cohere jeff-cohere changed the title Code incorporating changes to mam4xx to support tunable aerosol properties. EAMxx: Code incorporating changes to mam4xx to support tunable aerosol properties. Jul 13, 2026
@jeff-cohere jeff-cohere added the BFB PR leaves answers BFB label Jul 13, 2026
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jeff-cohere marked this pull request as ready for review July 13, 2026 18:52
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jeff-cohere commented Jul 13, 2026

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This PR is ready for review. All tests pass except for one ZM test in one configuration. All of the source changes are specific to MAM, and I know there's been some test noise related to ZM recently, so I'm not sure what to make of this failure. Happy to rebase against master if anyone thinks it would help.

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jeff-cohere requested review from bartgol and overfelt July 13, 2026 18:55
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jeff-cohere commented Jul 13, 2026

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The file changes probably seem somewhat nonsensical, passing aerosol species information between contexts in a haphazard way. We are currently discussing a restructuring of mam4xx to articulate a more sensible interface so EAMxx doesn't have to mess around in its innards.

jeff-cohere added a commit that referenced this pull request Jul 14, 2026
…ext (PR #8553)

In order to allow aerosol species properties to be modified for tuning, we've had
to make some changes to mam4xx. This PR updates the mam4xx submodule and
updates the MAM atmosphere processes to accommodate these changes.

[BFB]
@jeff-cohere jeff-cohere self-assigned this Jul 14, 2026
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jeff-cohere merged commit d233120 into master Jul 15, 2026
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jeff-cohere deleted the jeff-cohere/eamxx/mamxx-tunable-aero-properties branch July 15, 2026 16:51
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3 participants