{ "abstract": "The ocean and sea ice are central to Earth's climate system, influencing global heat and carbon cycles, weather patterns, and sea level rise. Recent decades have seen rapid advances in Earth System Models (ESMs), but limitations remain in simulating and comparing key oceanic and cryospheric processes across models. A recurring challenge in model intercomparison efforts like the Coupled Model Intercomparison Project (CMIP) is determining the output variables that best represent essential mechanisms while remaining manageable in volume and complexity. Here we present the CMIP7 ocean and sea ice data request, developed through an international, community-based process to prioritize variables for model output. We identify seven opportunities—science-based use cases spanning ocean and cryosphere drivers and responses, paleoclimate, polar amplification, extremes, wind waves, and rapid model evaluation—to guide variable selection and temporal resolution. To address these opportunities we request new high-frequency and depth-integrated variables, support improved diagnostics of ocean heat uptake, sea ice processes, and model-observation comparison, and build on lessons from CMIP6. Our approach enables targeted, efficient, and transparent data curation to support a wide range of users, from model developers to policymakers. This effort reflects a growing need for more sophisticated, integrative model outputs that address pressing climate questions, including regional extremes and tipping points, while laying the groundwork for future modeling developments.", "abstract_shown": true, "affiliations": [ "Brown University (Providence, United States of America)", "Department of Earth, Environmental, and Planetary Sciences (DEEPS), Brown University, Providence, Rhode Island, 02912, USA", "Earth and Climate Research Center (ELIC), Earth and Life Institute (ELI), Université catholique de Louvain (UCLouvain), Louvain-la-Neuve, Belgium", "Laboratoire d'Océanographie Physique et Spatiale, University of Brest, CNRS, Ifremer, IRD, Brest, France", "Alfred Wegener Institute – Helmholtz Center for Polar and Marine Research, Bremerhaven, Germany", "Alfred Wegener Institute - Helmholtz Center for Polar and Marine Research, Bremerhaven, Germany", "CMIP International Project Office, ECSAT, Harwell Science & Innovation Campus, Oxford, UK", "CMIP International Project Office, ECSAT, Harwell Science & Innovation Campus, UK", "Climate Science Centre, CSIRO Environment, Aspendale, VIC, Australia", "Department of Infrastructure Engineering, The University of Melbourne, Melbourne, VIC, Australia", "National Oceanography Centre, Southampton, UK", "PCMDI, Lawrence Livermore National Laboratory (LLNL), Livermore, California, 94550, USA", "Department of Earth and Planetary Sciences, University of California, Santa Cruz, Santa Cruz, California, USA", "Pacific Northwest National Laboratory, Richland, Washington, USA", "Commonwealth Scientific and Industrial Research Organisation, Aspendale, Victoria 3195, Australia", "Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden", "Foundation Euro-Mediterranean Centre on Climate Change (CMCC), Bologna, Italy", "National Centre for Atmospheric Science, University of Reading, Reading, United Kingdom", "Section for Meteorology and Ocean Sciences, University of Oslo, Oslo, Norway", "Department of Earth System Numerical Modelling (DIMNT), National Institute for Space Research (INPE), Sao José dos Campos, Sao Paulo, Brazil", "Earth Observatory of Singapore, Nanyang Technological University, Singapore", "National Aeronautics and Space Administration (NASA), Langley Research Center, Hampton, Virginia, 23681, USA", "Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore", "Ocean Center, National Taiwan University, Taipei, Taiwan", "Laboratoire d'Océanographie et du Climat, CNRS/IRD/MNHN, Sorbonne Université, Paris, France", "Institute of Sustainable Development and Climate Policy, National Tsing Hua University, Hsinchu, Taiwan" ], "article_type": null, "arxiv": null, "author_total": 22, "authors": [ { "affs": [ 0, 1 ], "name": "Baylor Fox‐Kemper", "orcid": "0000-0002-2871-2048" }, { "affs": [ 2 ], "name": "Patricia DeRepentigny", "orcid": "0000-0002-0854-3793" }, { "affs": [ 3 ], "name": "Anne‐Marie Tréguier", "orcid": "0000-0003-4569-845X" }, { "affs": [ 4, 5 ], "name": "Christian Stepanek", "orcid": "0000-0002-3912-6271" }, { "affs": [ 6, 7 ], "name": "Eleanor O’Rourke", "orcid": "0000-0002-0775-0811" }, { "affs": [ 8 ], "name": "Chloe Mackallah", "orcid": "0000-0003-4989-5530" }, { "affs": [ 8, 9 ], "name": "Alberto Meucci", "orcid": "0000-0002-0278-756X" }, { "affs": [ 10 ], "name": "Yevgeny Aksenov", "orcid": "0000-0001-6132-3434" }, { "affs": [ 11 ], "name": "Paul J. Durack", "orcid": "0000-0003-2835-1438" }, { "affs": [ 12 ], "name": "Nicole Feldl", "orcid": "0000-0002-2631-1419" }, { "affs": [ 13, 14 ], "name": "Oluwayemi A. Garuba", "orcid": "0000-0001-7931-7788" }, { "affs": [ 13, 15 ], "name": "Vanessa Hernaman", "orcid": "0000-0002-0042-7579" }, { "affs": [ 14, 16 ], "name": "Céline Heuzé", "orcid": "0000-0002-8850-5868" }, { "affs": [ 15, 17, 18 ], "name": "Doroteaciro Iovino", "orcid": "0000-0001-5132-7255" }, { "affs": [ 16, 17, 19 ], "name": "Gaurav Madan", "orcid": "0000-0002-7702-1171" }, { "affs": [ 18, 2 ], "name": "André Lanfer Marquez", "orcid": "0000-0001-8719-8045" }, { "affs": [ 2, 10 ], "name": "François Massonnet", "orcid": "0000-0002-4697-5781" }, { "affs": [ 10, 20 ], "name": "Jenny Mecking", "orcid": "0000-0002-1834-1845" }, { "affs": [ 19, 21 ], "name": "Dhrubajyoti Samanta", "orcid": "0000-0002-7477-5584" }, { "affs": [ 22, 23 ], "name": "Patrick C. Taylor", "orcid": "0000-0002-8098-8447" }, { "affs": [ 21, 24 ], "name": "Wan‐Ling Tseng", "orcid": "0000-0002-6644-9965" }, { "affs": [ 25 ], "name": "Martin Vancoppenolle", "orcid": "0000-0002-7573-8582" } ], "bibtex": "https://research.draconitic.com/paper/4jhc2n05vp91b.bib", "cited_by": 7, "doi": "10.5194/gmd-19-6043-2026", "fulltext_url": null, "id": "4jhc2n05vp91b", "issns": [ "1991-959X", "1991-9603" ], "landing_url": "https://doi.org/10.5194/gmd-19-6043-2026", "language": "en", "licence": "CC-BY", "licence_label": "CC BY", "licence_source": "journal", "licence_url": "https://creativecommons.org/licenses/by/4.0/", "metadata_licence": null, "native_subjects": [ [ "openalex", "2306|Climate variability and models" ] ], "openalex": "W4411971207", "pdf_url": "https://gmd.copernicus.org/articles/19/6043/2026/gmd-19-6043-2026.pdf", "pmcid": null, "pmid": null, "published": "2026-07-09", "publisher": "Copernicus Publications", "ris": "https://research.draconitic.com/paper/4jhc2n05vp91b.ris", "sources": [ { "first_seen": "2026-10-30T13:26:59Z", "native_id": "W4411971207", "source": "openalex", "url": "https://doi.org/10.5194/gmd-19-6043-2026" } ], "subjects": [ { "field": "earth", "origin": "openalex:2306|Climate variability and models", "subfield": "climate" } ], "title": "CMIP7 data request: ocean and sea ice priorities and opportunities", "title_text": "CMIP7 data request: ocean and sea ice priorities and opportunities", "type": "peer-reviewed", "updated_at": "2026-11-08T13:20:55Z", "url": "https://research.draconitic.com/paper/4jhc2n05vp91b", "venue": "Geoscientific model development", "versions": [] }