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Overview

The overall mission of the WCRP Working Group on Coupled Modeling (WGCM) is to foster the development and review of coupled climate models. This includes the organisation of model intercomparison projects aimed at understanding natural climate variability and predictability on decadal to centennial time scales, and predicting the response of the climate system to changes in natural and anthropogenic forcing. These activities are implemented in close cooperation with WCRP core projects, the JSC/CAS Working Group on Numerical Experimentation and partner programmes.

Current activities:

  • WGCM is leading the WCRP Grand Challenge on "Clouds, Circulation and Climate Sensitivity".
  • WGCM, in collaboration with many groups and partners within WCRP and beyond, is currently working on the next phase of the Coupled Model Intercomparison Project (CMIP6).

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Terms of reference

  • Review and foster the development of coupled climate models, including organisation of model intercomparisons and utilisation of available instrumental records and paleo-climatic data for model validation and diagnosis of shortcomings;
  • Promote coordinated experimentation with coupled models aiming to understand natural climate variability and predictability on decadal to centennial time scales, and predict the response of the climate system to changes in natural and anthropogenic forcing;
  • Promote the development of appropriate data assimilation procedures for coupled models and consider questions related to initialisation;
  • Undertake other modelling activities in support of CLIVAR and WCRP, as requested by the CLIVAR Scientific Steering Group and the JSC;
  • Advise the CLIVAR Scientific Steering Group and the WCRP Joint Scientific Committee on progress in the development and use of global coupled models, and review and coordinate modelling activities as appropriate within CLIVAR and in WCRP as a whole;
  • Maintain close cooperation with the JSC/CAS Working Group on Numerical Experimentation in establishing an integrated approach to climate modelling in WCRP;
  • Liaise as appropriate with IPCC