DOE OSTI · 3363610
CMIP7 data request: Earth system priorities and opportunities
Abstract
This paper presents a comprehensive overview of the Coupled Model Intercomparison Project Phase 7 (CMIP7) request for data pertaining to Earth systems science, and provides justification for the resources needed to produce this data. Topics within the CMIP7 Earth System (CMIP7-ES) theme centre around tracking of flows of energy, carbon, water and other fluxes across domains, and constraining feedbacks between these cycles and the climate system. These topics are summarized in this paper as scientific “opportunities” describing specific model intercomparison experiments and use cases for next-generation Earth System Model (ESM) output. These opportunities were submitted by modelling groups and scientific consortia following an extended public consultation process. Contained within each opportunity are requests for groups of Climate & Forecasting (CF) variables, which are bundled into variable groups representing all data required to address the opportunities' needs. Novel opportunities in CMIP7 compared with previous phases will include running `emissions-driven' simulations that integrate carbon emissions and removal scenarios with updated representations of the global carbon cycle, expanded variable groups needed to model marine trophic interactions and biogeochemistry, and data needed to understand the risk of global tipping points, among others. The production of these variables will close key gaps and uncertainties identified during previous rounds of CMIP, and support the 7th Intergovernmental Panel on Climate Change Assessment Report (AR7). We argue that CMIP7-ES data will be broadly used by scientific, policy, governmental, industry, and other communities that rely on climate model projections for research and decision making. As an author group we also reflect on the evolution of the CMIP7-ES data request as a part of a deliberative process in support of the global CMIP program.
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McPartland, Mara Y. [Leipzig University (Germany)] (ORCID:0000000212420438), Lovato, Tomas [Euro-Mediterranean Center on Climate Change, Bologna (Italy)] (ORCID:0000000251886767), Koven, Charles [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Climate and Ecosystem Sciences Division] (ORCID:0000000233670065), Wilson, Jamie D. [Univ. of Liverpool (United Kingdom)] (ORCID:0000000175094791), Turner, Briony [European Space Agency, Harwell (United Kingdom)] (ORCID:0000000333903831), Petrik, Colleen M. [Univ. of California, San Diego, La Jolla, CA (United States)], Licón-Saláiz, José [Potsdam Institute for Climate Impact Research (Germany)] (ORCID:0000000287332256), Li, Fang [Chinese Academy of Sciences (CAS), Beijing (China)] (ORCID:0000000236862257), Lhardy, Fanny [Ecole Normale Superieure de Lyon (France)] (ORCID:0000000166948695), Clement Kinney, Jaclyn [Naval Postgraduate School, Monterey, CA (United States)] (ORCID:0000000269198233), Kawamiya, Michio [Japan Agency for Marine-Earth Science and Technology, Yokohama (Japan); Tohoku Univ., Sendai (Japan)], Hassler, Birgit [Institut für Physik der Atmosphäre, Oberpfaffenhofen (Germany)] (ORCID:000000032724709X), Gillett, Nathan P. [Environment and Climate Change Canada, Victoria, BC (Canada)] (ORCID:0000000229570002), Fall, Cheikh Modou Noreyni [Univ. Cheikh Anta Diop (Senegal)], Danek, Christopher [Helmholtz Centre for Polar and Marine Research, Bremerhaven (Germany)] (ORCID:0000000244531140), Brierley, Chris M. [University College London (United Kingdom)] (ORCID:0000000291956731), Bastos, Ana [Leipzig University (Germany)] (ORCID:0000000273687806), Andrews, Oliver [University of York (United Kingdom)]. 2026-04-15. CMIP7 data request: Earth system priorities and opportunities. https://doi.org/10.5194/gmd-19-2849-2026
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