CL5.6 | Advances in Earth system modelling: process representation, benchmarking and understanding
EDI
Advances in Earth system modelling: process representation, benchmarking and understanding
Co-organized by ESSI2
Convener: Roland Séférian | Co-conveners: Joshua DorringtonECSECS, Alicia HouECSECS, Birgit Hassler, Ranjini Swaminathan, Torben Koenigk, Chantelle BurtonECSECS

Earth System Models (ESMs) have evolved considerably in complexity, capability and scale as evidenced in projects such as the Coupled Model Intercomparison Project Phase 6 and the forthcoming CMIP7 project.
Coupled Earth system interactions such as feedbacks and potential abrupt changes are a significant source of uncertainty in our current understanding of the Earth system and how it might respond to future human interventions.
There is therefore a need to credibly assess such developments and capabilities for effective research on climate variability and change.
This session will examine physical, biogeochemical and biophysical processes likely to affect the evolution of the Earth system over the coming decades and centuries. Contributions with a focus on; (a) the latest advances in the representation of these couplings and interactions within state-of-the-art numerical models; (b) novel experimental designs to help improve quantification of these feedbacks, including those targeting CMIP7 activities and (c) novel approaches for benchmarking and evaluation of ESMs including cross-domain and process -based evaluation, observational uncertainties, science and performance metrics and benchmarks; are all particularly welcome.
This session arises from the joint initiative of the The CMIP7 Model Benchmarking Task Team, EU-funded ESM2025 and OptimESM projects.