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@erinethomas erinethomas commented Dec 18, 2025

Add Full Wave-Sea Ice coupling for wave-enabled E3SM simulations. This PR is bit-for-bit with standard E3SM configurations (no active waves), it only generates climate changing impacts if an active wave compset is used.

This PR is the last of all PRs for the LRW (Low Res Wave) configuration of E3SM V3. This PR enables Full two-way coupling between WW3 and MPAS-SI.

This PR adds the following new features to E3SM:
-Floe Size Distribution in MPAS-SI
-Floe Breaking and re-distribution of floe size distribution due to waves.

Note: This PR requires the use of new WW3 and Icepack submodules, which have PR's open and are under review as follows:
WW3:E3SM-Project/WW3#7
Icepack: CICE-Consortium/Icepack#545

[BFB] when no wave model.
[NML]

A design document with the full description of all the new wave ice coupling features is here:
https://e3sm.atlassian.net/wiki/spaces/pd/pages/4449861664/New+Feature+Design+Document+Wave-Sea+Ice+Interactions

A 100 year PI control run WITH FULL WAVE COUPLING (Atm + ocean+sea ice) is being run.
(link to results coming soon)

Simulation pages can be found here:
No Wave Control:
https://e3sm.atlassian.net/wiki/spaces/CM/pages/5451612161/WaveMomentum_PIControl_NoWave

E3SM + Wave-Ocean-Atm: https://e3sm.atlassian.net/wiki/spaces/CM/pages/5452103681/WaveMomentum_PIControl_WW3v6.07

E3SM + Wave-Ocean-Atm-SeaIce:
https://e3sm.atlassian.net/wiki/spaces/CM/pages/5618499586/WaveIce_PIControl_WW3v6.07

@erinethomas erinethomas marked this pull request as draft December 18, 2025 22:08
@sbrus89 sbrus89 self-assigned this Dec 18, 2025
@sbrus89 sbrus89 added Wave MPAS-seaice Concerning the MPAS-seaice model Stealth PR has feature which, if turned on, could change climate. fka FCC NML labels Dec 18, 2025
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MPAS-seaice Concerning the MPAS-seaice model NML Stealth PR has feature which, if turned on, could change climate. fka FCC Wave

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