Model Intercomparison Project
| Attribute | Value |
|---|---|
| mip_abstract | Coordinated experimental design and implementation has become a cornerstone of global climate modelling. Model Intercomparison Projects (MIPs) enable systematic and robust analysis of results across many models, by reducing the influence of ad hoc differences in model set-up or experimental Boundary conditions. The Coupled Climate–Carbon Cycle Model Intercomparison Project (C4MIP) takes responsibility for design, documentation, and analysis of carbon cycle feedbacks and interactions in climate simulations. These feedbacks are potentially large and play a leading-order contribution in determining the atmospheric composition in response to human emissions of CO2 and in the setting of emissions targets to stabilize climate or avoid dangerous climate change. For nearly two decades, C4MIP has coordinated coupled climate–carbon cycle simulations. While the climate–carbon cycle community contributes to our experimental design, the simulations also fit within the wider CMIP activity, conform to some common standards including documentation and diagnostic requests, and are designed to complement the CMIP core experiments (DECK). C4MIP evolves, but retains three key strands of scientific motivation: (1) pre-industrial and historical simulations (formally part of the common set of CMIP6 experiments) to enable model evaluation (2) idealized coupled and partially coupled simulations with 1% per year increases in CO2 to enable diagnosis of feedback strength and its components, quantify TCRE and ZEC and understand processes surrounding reversibility and symmetry to negative emissions (3) future scenario simulations to project how the Earth system will respond to anthropogenic activity over the 21st century and beyond. Focus moving towards low (policy relevant) pathways with and without overshoot |
| mip_long_name | Coupled Climate Carbon Cycle MIP |
| mip_website | https://c4mip.net/home |
| name | C4MIP |
| uid | 527f5c7f-8c97-11ef-944e-41a8eb05f654 |