Multiple institutes have recently undertaken large initial-condition ensemble simulations using single comprehensive climate models. The ensembles typically simulate historical climate and make future projections. These ensembles are powerful because they can be used to accurately estimate forced changes in the climate system and to determine the magnitude and realism of simulated internal climate variability.
This session focuses on research of the climate system that utilizes large ensemble modelling approaches to investigate internal variability, forced changes in internal variability, reinterpret the observed record, or develop new approaches to attribution of observed events or trends. We encourage contributions that use large ensembles as a novel approach to climate model evaluation and intercomparison with a focus on internal variability. We welcome research across the components of the Earth system and particularly invite studies that apply novel methods or cross disciplinary approaches to leverage the potential of large ensembles.