Polar Climate and Ocean Model Working Group Meeting 2026

Welcome - Joint OMWG/PCWG Focus: Wave-ice interactions

Co-chairs

Fracture of sea ice by ocean surface waves in CESM3

Lettie Roach (Remote)

Wave-ice interactions in CESM3: Model physics and results

Cecilia Bitz

Machine learning-based parameterization of floe perimeter for CESM

Diajeng Atmojo (Remote)

A new parameterization to describe the health of a sea ice floe and its potential to influence wave fracture

Geraint Webb

The Full Wave-Coupled Configuration of E3SMv3: Wave, Ocean, Atmosphere, Sea Ice Coupling

Erin Thomas

Modelling wave–ice–ocean interactions using ACCESS-OM3

Noah Day (Remote)

Discussion Topics:

Wave Ice Physics and future development
Coordinated experiments and analysis with CESM
Regional ice/ocean/wave modeling (CROCODILE)
 

Break

CGD Seminar: Understanding biases in Antarctic passive microwave sea ice concentration using ICESat-2, NISAR, and data assimilation.

Chris Horvat (Remote)

Lunch

Welcome - Joint OMWG/PCWG - Focus: CESM3

Co-chairs - Gustavo Marques, Ian Grooms, Alice DuVivier, David Bailey

Cross WG Session for June Workshop: Storytelling to craft climate science tools for communities

Laura Landrum, Mari Tye, James Done

CESM 3 sea ice overview

Alice DuVivier and Dave Bailey

CESM 3 ocean overview

Ian Grooms/Gustavo Marques

Discussion Topics:

• CESM3 release
• CMIP7 plans, etc.
• CESM3 planned manuscripts
• Coordinated experiments and analysis, etc.
• Regional ice/ocean/wave modeling (CROCODILE)
• Anything else 

Break

Welcome

Co-chairs

FloeNet: a mass-conserving emulator of the GFDL sea ice model

Will Gregory (Remote)

Insights into the ice-ocean exchange and variability of Microplastics in the Arctic Ocean

Lingwei Li

Tropical Origins of High-Latitude Cyclones: Insights from ex-Typhoon Halong (2025)

Zhuo Wang (Remote)

Melt Ponds on Arctic Sea Ice

David Clemens-Sewall

Regional Discrepancies in Arctic Melt Pond Distribution of CMIP6 Models and CESM-LE with Satellite Observations

Alek Petty

Adjourn

Design and implementation of ML parameterization to aid Gent-McWilliams scheme

Dhruv Balwada

Leith+E backscatter in CESM-MOM6

Ian Grooms

Using the ocean’s internal wave spectrum to inform eddy viscosities

Darren Engwirda

An implicit closure for subgrid potential vorticity mixing in MOM6

Wenda Zhang

Adjourn 

Welcome - PCWG only

Alice DuVivier

Constraining and Evaluating the Impacts of Atmospheric Forcing Errors for Sea Ice Data Assimilation in Short-Range Forecasts

Hee-Sung Jung

Internal Variability Explains Much of the Observed–Model Discrepancy in Spring Arctic Amplification

Sky Gale

Cloud-based Arctic radiation management in idealized CESM simulations

Xia Li (Remote)

Local Arctic Ice Management: Evaluating model simulations of sea ice flooding at experimental scales

Molly Wieringa

Potential Impacts of Marine Cloud Brightening in the Arctic System and Beyond

David Clemens-Sewall, Courtney Payne, Claire Singer, Walker Lee

Break

Seasonal-to-Decadal Prediction of Arctic Sea Ice and Ocean Heat Transport

Jacob Cohen

AABW Variability as a Driver of AMOC Strength: Insights from MESACLIP

Ilana Wainer

Decadal changes in the monthly variance and persistence of simulated Antarctic sea ice anomalies

Marika Holland

Antarctic Biophysical Connections

Alice DuVivier

Quantifying under-ice phytoplankton blooms in the changing Arctic and Southern Oceans

Courtney Payne

Discussion:

ML enabled CESM
High resolution
PCWG led community experiments
Anything else
 

Adjourn

Introduction

Co-chairs

Experience with BLOM and the ALE method in earth system modelling

Mats Bentsen (Remote)

CFORCE: Creating the Next Generation Datasets for Forcing Ocean – Sea-ice Coupled Models

Margarita Markina

Status update on the software developments of the TURBO project

John Dennis

CESM Ocean Diagnostics: Current and Future Plans

Mike Levy

Simulating the Marine Methane Cycle

Shanlin Wang

Break 

Quantifying wave groups' contributions to variability in surface wave properties

Ryan Du

Effects of Stochastic Parameterization in MOM6 on Global Ensemble-Based Data Assimilation

Kate Boden

Regional MOM6 in CESM via CROCODILE & CrocoDash

Dan Amrhein, Manish Venumuddula, and Aidan Janney

Model-data comparison tools using DART and CrocoLake

Enrico Milanese

Discussion: 

(Topics - Beyond CESM3)

ML enabled CESM
OMWG resource request and University large allocation requests
OMWG led community Experiments
Regional modeling/CROCODILE
High resolution

Lunch (1.5 hrs: note cafeteria only serving employees)

Recent advances with the High-Resolution version of CESM by the MESACLIP project

Fred Castruccio

Characteristics of Mesoscale Eddies in an Eddy-Permitting Ocean Model and Reanalysis Data

Ben Lombardi

Predictability of ocean eddies and air-sea interaction

Justin Small

Adjourn