DOE OSTI · 3020879
An evolving Coupled Model Intercomparison Project phase 7 (CMIP7) and Fast Track in support of future climate assessment
Abstract
The Coupled Model Intercomparison Project (CMIP) coordinates community-based efforts to answer key and timely climate science questions, facilitate delivery of relevant multi-model simulations through shared infrastructure, and support national and international climate assessments. Generations of CMIP have evolved through extensive community engagement from punctuated phasing into more continuous support for the design of experimental protocols, infrastructure for data publication and access, and public delivery of climate information. We identify four fundamental research questions motivating a seventh phase of coupled model intercomparison relating to patterns of sea surface temperature change, changing weather, the water–carbon–climate nexus, and tipping points. Key CMIP7 advances include an expansion of baseline experiments, a focus on CO 2 -emissions-driven experiments, sustained support for community MIPs, periodic updating of historical forcings and diagnostics requests, and a collection of prioritized experiments, or the “Assessment Fast Track”, drawn from community MIPs to support climate research, assessment, and service goals across prediction and projection, characterization, attribution, and process understanding.
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Dunne, John P. [National Oceanic and Atmospheric Administration (NOAA), Princeton, NJ (United States). Geophysical Fluid Dynamics Laboratory], Hewitt, Helene T. [United Kingdom Meteorological Office, Exeter, Devon (United Kingdom)] (ORCID:0000000174326001), Arblaster, Julie M. [Monash Univ., Melbourne, VIC (Australia)] (ORCID:0000000242872363), Bonou, Frédéric [National University of Sciences, Technology, Engineering and Mathematics of Abomey (UNSTIM) (Benin)] (ORCID:0000000221216893), Boucher, Olivier [Sorbonne Univ., Paris (France); Institut Pierre Simon Laplace, Paris (France); Centre National de la Recherche Scientifique (CNRS), Paris (France)] (ORCID:0000000323285769), Cavazos, Tereza [Center for Scientific Research and Higher Education of Ensenada (CICESE) (Mexico)], Dingley, Beth [Harwell Science and Innovation Campus, Didcot (United Kingdom)], Durack, Paul J. [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)] (ORCID:0000000328351438), Hassler, Birgit [German Aerospace Center (DLR), Oberpfaffenhofen (Germany)] (ORCID:000000032724709X), Juckes, Martin [Univ. of Oxford (United Kingdom); Science and Technology Facilities Council (STFC), Oxford (United Kingdom)] (ORCID:0000000317702132), Miyakawa, Tomoki [Univ. of Tokyo, Kashiwa (Japan)], Mizielinski, Matt [United Kingdom Meteorological Office, Exeter, Devon (United Kingdom)] (ORCID:0000000234574702), Naik, Vaishali [National Oceanic and Atmospheric Administration (NOAA), Princeton, NJ (United States). Geophysical Fluid Dynamics Laboratory], Nicholls, Zebedee [Climate Resource, Berlin (Germany); International Institute for Applied Systems Analysis (IIASA), Laxenburg (Austria); Univ. of Melbourne, Parkville, VIC (Australia)] (ORCID:0000000247672723), O'Rourke, Eleanor [Harwell Science and Innovation Campus, Didcot (United Kingdom)], Pincus, Robert [Columbia Univ., Palisades, NY (United States). Lamont-Doherty Earth Observatory], Sanderson, Benjamin M. [Center for International Climate Research (CICERO), Oslo (Norway)] (ORCID:0000000186354624), Simpson, Isla R. [NSF National Center for Atmospheric Research, Boulder, CO (United States)], Taylor, Karl E. [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)] (ORCID:0000000264912135). 2025-10-01. An evolving Coupled Model Intercomparison Project phase 7 (CMIP7) and Fast Track in support of future climate assessment. https://doi.org/10.5194/gmd-18-6671-2025
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