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Add the ice-aware MLE scheme to MPAS-Ocean#8520

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Add the ice-aware MLE scheme to MPAS-Ocean#8520
hyungyukang wants to merge 2 commits into
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hkang/ocean/add-ice-aware-mle

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This PR adds the ice-aware option to the mixed-layer eddy (MLE) parametrization in MPAS-Ocean

  • The ice-aware MLE suppresses submesoscale eddy activity beneath sea ice.

  • The implementation follows Shrestha and Manucharyan (2022).

  • The relevant namelist options for the ice-aware MLE scheme are listed below. Details for each option are provided in mpas-ocean/bld/namelist_files/namelist_definition_mpaso.xml.

    • config_submesoscale_ice_aware = .true.
    • config_submesoscale_ice_aware_crit = 0.5
  • This option is implemented as a stealth feature in MPAS-Ocean.

This work was carried out under the ImPACTS SciDAC project, led by @vanroekel .

Added an ice-aware MLE option to the submesoscale parameterization in MPAS-Ocean
- The ice-aware MLE suppresses submesoscale eddy activity beneath sea ice.
- The implementation follows Shrestha and Manucharyan (2022).
  (https://journals.ametsoc.org/view/journals/phoc/52/3/JPO-D-21-0024.1.xml)
- This option is implemented as a stealth feature in MPAS-Ocean.
@hyungyukang hyungyukang added MPAS-ocean Concerning the MPAS-ocean model coupled to E3SM. Stealth PR has feature which, if turned on, could change climate. fka FCC fromES PR from an E3SM ecosystem project or other external effort labels Jun 26, 2026
@rljacob
rljacob requested a review from vanroekel June 26, 2026 14:56
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