An overview of the E3SM version 2 large ensemble and comparison to other E3SM and CESM large ensembles

Fasullo, John T.; Golaz, Jean-Christophe; Caron, Julie M.; Rosenbloom, Nan; Meehl, Gerald A.; Strand, Warren; Glanville, Sasha; Stevenson, Samantha; Molina, Maria; Shields, Christine A.; Zhang, Chengzhu; Benedict, James; Wang, Hailong; Bartoletti, Tony

doi:https://doi.org/10.5194/esd-15-367-2024

Articles | Volume 15, issue 2

https://doi.org/10.5194/esd-15-367-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/esd-15-367-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 2

Research article

|

08 Apr 2024

Research article |

| 08 Apr 2024

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

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.

Supplement

https://doi.org/10.5194/esd-15-367-2024-supplement

Data sets

CERES radiative fluxes Clouds and the Earth's Radiant Energy System https://ceres.larc.nasa.gov/data/

Community Earth System Model Version 1 Large Ensemble CESM Project https://www.earthsystemgrid.org/dataset/ucar.cgd.ccsm4.cesmLE.html

Community Earth System Model Version 2 Large Ensemble CESM Project https://www.earthsystemgrid.org/dataset/ucar.cgd.cesm2le.output.html

Energy Exascale Earth System Model Version 2 Large Ensemble E3SM Project https://portal.nersc.gov/archive/home/c/ccsm/www/E3SMv2/FV1/

Energy Exascale Earth System Model Version 1 Large Ensemble E3SM Project https://portal.nersc.gov/archive/home/c/ccsm/www/E3SMv1-LE/FV1

ERA20C reanalysis data ECMWF https://apps.ecmwf.int/datasets/data/era20c-moda/levtype=sfc/type=an/

GPCP Climate Data Record precipitation GPCP https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.ncdc:C00979

NOAA 20th Century reanalysis NOAA https://www.esrl.noaa.gov/psd/data/gridded/data.20thC_ReanV2c.html

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Short summary

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.