RCEMIP-ACI: Exploring Aerosol-Cloud Interactions in Radiative-Convective Equilibrium
The Radiative-Convective Equilibrium Model Intercomparison Project – Aerosol-Cloud Interactions (RCEMIP-ACI) is a multi-model initiative designed to deepen our understanding of how aerosols influence cloud properties and atmospheric circulation. By leveraging the idealized Radiative-Convective Equilibrium (RCE) framework, this project provides a robust and controlled environment for studying cloud-aerosol interactions under varying sea surface temperature (SST) conditions.
RCEMIP-ACI expands upon the original RCEMIP protocol by incorporating aerosol perturbations at three distinct concentrations (20, 200, and 2000 cm⁻³) while excluding direct aerosol-radiation interactions. This approach allows us to systematically investigate the equilibrium response of clouds, precipitation efficiency, convective aggregation, and large-scale circulation to aerosol changes. The simulations from 11 different models are now complete, and the dataset is expected to be publicly available in mid-2025. This multi-model ensemble will serve as a valuable resource for researchers investigating cloud feedbacks, climate sensitivity, and large-scale atmospheric dynamics.
For more information or collaboration inquiries, please contact:
- Guy Dagan, HUJI – guy.dagan@mail.huji.ac.il
- Sue van den Heever, CSU – sue.vandenHeever@colostate.edu
- Philip Stier, University of Oxford – philip.stier@physics.ox.ac.uk