An overview of the E3SM version 2 large ensemble and comparison to other E3SM and CESM large ensembles
John T. Fasullo,Jean-Christophe Golaz,Julie M. Caron,Nan Rosenbloom,Gerald A. Meehl,Warren Strand,Sasha Glanville,Samantha Stevenson,Maria Molina,Christine A. Shields,Chengzhu Zhang,James Benedict,Hailong Wang,and Tony Bartoletti
Atmospheric, Climate, and Earth Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA
Tony Bartoletti
Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
Editorial note: Hailong Wang was added as co-author to this paper on 21 June 2024. They originally contributed to the manuscript but were missing in the author list upon publication.
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Latest update: 09 Jan 2026
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Climate model large ensembles provide a unique and invaluable means for estimating the climate response to external forcing agents and quantify contrasts in model structure. Here, an overview of the Energy Exascale Earth System Model (E3SM) version 2 large ensemble is given along with comparisons to large ensembles from E3SM version 1 and versions 1 and 2 of the Community Earth System Model. The paper provides broad and important context for users of these ensembles.
Climate model large ensembles provide a unique and invaluable means for estimating the climate...
