CMIP7 scientific objectives, experimental design, and organization
CMIP7 scientific objectives, experimental design, and organization
Editor(s): GMD topic editors | Coordinators: John Dunne (NOAA Geophysical Fluid Dynamics Laboratory, United States), Helene Hewitt (Met Office, United Kingdom), and Eleanor O'Rourke (WCRP-CMIP International Project Office, United Kingdom)

From its origins as a punctuated phasing of a few key coupled atmosphere–ocean general circulation model experiments, the Coupled Model Intercomparison Project (CMIP) has evolved into a continuous climate Earth system modelling programme supported by design of experimental protocol, forcing dataset development, infrastructure solutions, and format requirements. These defined phases tackle key and timely climate science questions and facilitate delivery of relevant multi-model simulations through shared infrastructure for the benefit of the climate research community, climate impact and adaptation practitioners, national and international climate assessments, and society at large. In a series of invited contributions, this special issue describes the evolving design and organization of CMIP, the suite of experiments of its seventh phase (CMIP7) including the new AR7 Fast Track component and registered model intercomparison projects (MIPs) adhering to CMIP data standards and best-practice experimental protocol and data requests, and enabling infrastructure. The papers provide the required information to produce a consistent set of climate model simulations that can be scientifically exploited to support the World Climate Research Programme (WCRP) science priorities, which currently include Fundamental understanding of the climate system, Prediction of the near-term evolution of the climate system, Long-term response of the climate system, and Bridging climate science and society, and future climate assessments informing policy and decision-making. A separate GMD special issue is providing an overview of the various CMIP7 forcings.

Review process: all papers of this special issue underwent the regular interactive peer-review process of Geoscientific Model Development handled by members of the GMD editorial board.

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27 Aug 2024
High Resolution Model Intercomparison Project phase 2 (HighResMIP2) towards CMIP7
Malcolm John Roberts, Kevin A. Reed, Qing Bao, Joseph J. Barsugli, Suzana J. Camargo, Louis-Philippe Caron, Ping Chang, Cheng-Ta Chen, Hannah M. Christensen, Gokhan Danabasoglu, Ivy Frenger, Neven S. Fučkar, Shabeh ul Hasson, Helene T. Hewitt, Huanping Huang, Daehyun Kim, Chihiro Kodama, Michael Lai, Lai-Yung Ruby Leung, Ryo Mizuta, Paulo Nobre, Pablo Ortega, Dominique Paquin, Christopher D. Roberts, Enrico Scoccimarro, Jon Seddon, Anne Marie Treguier, Chia-Ying Tu, Paul A. Ullrich, Pier Luigi Vidale, Michael F. Wehner, Colin M. Zarzycki, Bosong Zhang, Wei Zhang, and Ming Zhao
EGUsphere, https://doi.org/10.5194/egusphere-2024-2582,https://doi.org/10.5194/egusphere-2024-2582, 2024
Preprint under review for GMD (discussion: open, 1 comment)
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22 Aug 2024
Baseline Climate Variables for Earth System Modelling
Martin Juckes, Karl E. Taylor, Fabrizio Antonio, David Brayshaw, Carlo Buontempo, Jian Cao, Paul J. Durack, Michio Kawamiya, Hyungjun Kim, Tomas Lovato, Chloe Mackallah, Matthew Mizielinski, Alessandra Nuzzo, Martina Stockhause, Daniele Visioni, Jeremy Walton, Briony Turner, Eleanor O’Rourke, and Beth Dingley
EGUsphere, https://doi.org/10.5194/egusphere-2024-2363,https://doi.org/10.5194/egusphere-2024-2363, 2024
Preprint under review for GMD (discussion: open, 7 comments)
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11 Jun 2024
Enhancing Climate Model Performance through Improving Volcanic Aerosol Representation
Ziming Ke, Qi Tang, Jean-Christoophe Golaz, Xiaohong Liu, and Hailong Wang
EGUsphere, https://doi.org/10.5194/egusphere-2024-1612,https://doi.org/10.5194/egusphere-2024-1612, 2024
Preprint under review for GMD (discussion: final response, 2 comments)
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