The DOE E3SM Model Version 2: Overview of the Physical Model and Initial Model Evaluation
This work documents version two of the Department of Energy's Energy Exascale Earth System Model (E3SM). E3SMv2 is a significant evolution from its predecessor E3SMv1, resulting in a model that is nearly twice as fast and with a simulated climate that is improved in many metrics. We describe th...
Published in: | Journal of Advances in Modeling Earth Systems |
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eScholarship, University of California
2022
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Online Access: | https://escholarship.org/uc/item/5bp395w8 https://escholarship.org/content/qt5bp395w8/qt5bp395w8.pdf https://doi.org/10.1029/2022ms003156 |
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ftcdlib:oai:escholarship.org:ark:/13030/qt5bp395w8 2024-09-15T18:35:33+00:00 The DOE E3SM Model Version 2: Overview of the Physical Model and Initial Model Evaluation Golaz, Jean‐Christophe Van Roekel, Luke P Zheng, Xue Roberts, Andrew F Wolfe, Jonathan D Lin, Wuyin Bradley, Andrew M Tang, Qi Maltrud, Mathew E Forsyth, Ryan M Zhang, Chengzhu Zhou, Tian Zhang, Kai Zender, Charles S Wu, Mingxuan Wang, Hailong Turner, Adrian K Singh, Balwinder Richter, Jadwiga H Qin, Yi Petersen, Mark R Mametjanov, Azamat Ma, Po‐Lun Larson, Vincent E Krishna, Jayesh Keen, Noel D Jeffery, Nicole Hunke, Elizabeth C Hannah, Walter M Guba, Oksana Griffin, Brian M Feng, Yan Engwirda, Darren Di Vittorio, Alan V Dang, Cheng Conlon, LeAnn M Chen, Chih‐Chieh‐Jack Brunke, Michael A Bisht, Gautam Benedict, James J Asay‐Davis, Xylar S Zhang, Yuying Zhang, Meng Zeng, Xubin Xie, Shaocheng Wolfram, Phillip J Vo, Tom Veneziani, Milena Tesfa, Teklu K Sreepathi, Sarat Salinger, Andrew G Eyre, JE Jack Reeves Prather, Michael J Mahajan, Salil Li, Qing Jones, Philip W Jacob, Robert L Huebler, Gunther W Huang, Xianglei Hillman, Benjamin R Harrop, Bryce E Foucar, James G Fang, Yilin Comeau, Darin S Caldwell, Peter M Bartoletti, Tony Balaguru, Karthik Taylor, Mark A McCoy, Renata B Leung, L Ruby Bader, David C 2022-12-01 application/pdf https://escholarship.org/uc/item/5bp395w8 https://escholarship.org/content/qt5bp395w8/qt5bp395w8.pdf https://doi.org/10.1029/2022ms003156 unknown eScholarship, University of California qt5bp395w8 https://escholarship.org/uc/item/5bp395w8 https://escholarship.org/content/qt5bp395w8/qt5bp395w8.pdf doi:10.1029/2022ms003156 public Journal of Advances in Modeling Earth Systems, vol 14, iss 12 Climate Action DOE E3SM climate modeling Atmospheric Sciences article 2022 ftcdlib https://doi.org/10.1029/2022ms003156 2024-06-28T06:28:18Z This work documents version two of the Department of Energy's Energy Exascale Earth System Model (E3SM). E3SMv2 is a significant evolution from its predecessor E3SMv1, resulting in a model that is nearly twice as fast and with a simulated climate that is improved in many metrics. We describe the physical climate model in its lower horizontal resolution configuration consisting of 110 km atmosphere, 165 km land, 0.5° river routing model, and an ocean and sea ice with mesh spacing varying between 60 km in the mid-latitudes and 30 km at the equator and poles. The model performance is evaluated with Coupled Model Intercomparison Project Phase 6 Diagnosis, Evaluation, and Characterization of Klima simulations augmented with historical simulations as well as simulations to evaluate impacts of different forcing agents. The simulated climate has many realistic features of the climate system, with notable improvements in clouds and precipitation compared to E3SMv1. E3SMv1 suffered from an excessively high equilibrium climate sensitivity (ECS) of 5.3K. In E3SMv2, ECS is reduced to 4.0K which is now within the plausible range based on a recent World Climate Research Program assessment. However, a number of important biases remain including a weak Atlantic Meridional Overturning Circulation, deficiencies in the characteristics and spectral distribution of tropical atmospheric variability, and a significant underestimation of the observed warming in the second half of the historical period. An analysis of single-forcing simulations indicates that correcting the historical temperature bias would require a substantial reduction in the magnitude of the aerosol-related forcing. Article in Journal/Newspaper Sea ice University of California: eScholarship Journal of Advances in Modeling Earth Systems 14 12 |
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Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Climate Action DOE E3SM climate modeling Atmospheric Sciences |
spellingShingle |
Climate Action DOE E3SM climate modeling Atmospheric Sciences Golaz, Jean‐Christophe Van Roekel, Luke P Zheng, Xue Roberts, Andrew F Wolfe, Jonathan D Lin, Wuyin Bradley, Andrew M Tang, Qi Maltrud, Mathew E Forsyth, Ryan M Zhang, Chengzhu Zhou, Tian Zhang, Kai Zender, Charles S Wu, Mingxuan Wang, Hailong Turner, Adrian K Singh, Balwinder Richter, Jadwiga H Qin, Yi Petersen, Mark R Mametjanov, Azamat Ma, Po‐Lun Larson, Vincent E Krishna, Jayesh Keen, Noel D Jeffery, Nicole Hunke, Elizabeth C Hannah, Walter M Guba, Oksana Griffin, Brian M Feng, Yan Engwirda, Darren Di Vittorio, Alan V Dang, Cheng Conlon, LeAnn M Chen, Chih‐Chieh‐Jack Brunke, Michael A Bisht, Gautam Benedict, James J Asay‐Davis, Xylar S Zhang, Yuying Zhang, Meng Zeng, Xubin Xie, Shaocheng Wolfram, Phillip J Vo, Tom Veneziani, Milena Tesfa, Teklu K Sreepathi, Sarat Salinger, Andrew G Eyre, JE Jack Reeves Prather, Michael J Mahajan, Salil Li, Qing Jones, Philip W Jacob, Robert L Huebler, Gunther W Huang, Xianglei Hillman, Benjamin R Harrop, Bryce E Foucar, James G Fang, Yilin Comeau, Darin S Caldwell, Peter M Bartoletti, Tony Balaguru, Karthik Taylor, Mark A McCoy, Renata B Leung, L Ruby Bader, David C The DOE E3SM Model Version 2: Overview of the Physical Model and Initial Model Evaluation |
topic_facet |
Climate Action DOE E3SM climate modeling Atmospheric Sciences |
description |
This work documents version two of the Department of Energy's Energy Exascale Earth System Model (E3SM). E3SMv2 is a significant evolution from its predecessor E3SMv1, resulting in a model that is nearly twice as fast and with a simulated climate that is improved in many metrics. We describe the physical climate model in its lower horizontal resolution configuration consisting of 110 km atmosphere, 165 km land, 0.5° river routing model, and an ocean and sea ice with mesh spacing varying between 60 km in the mid-latitudes and 30 km at the equator and poles. The model performance is evaluated with Coupled Model Intercomparison Project Phase 6 Diagnosis, Evaluation, and Characterization of Klima simulations augmented with historical simulations as well as simulations to evaluate impacts of different forcing agents. The simulated climate has many realistic features of the climate system, with notable improvements in clouds and precipitation compared to E3SMv1. E3SMv1 suffered from an excessively high equilibrium climate sensitivity (ECS) of 5.3K. In E3SMv2, ECS is reduced to 4.0K which is now within the plausible range based on a recent World Climate Research Program assessment. However, a number of important biases remain including a weak Atlantic Meridional Overturning Circulation, deficiencies in the characteristics and spectral distribution of tropical atmospheric variability, and a significant underestimation of the observed warming in the second half of the historical period. An analysis of single-forcing simulations indicates that correcting the historical temperature bias would require a substantial reduction in the magnitude of the aerosol-related forcing. |
format |
Article in Journal/Newspaper |
author |
Golaz, Jean‐Christophe Van Roekel, Luke P Zheng, Xue Roberts, Andrew F Wolfe, Jonathan D Lin, Wuyin Bradley, Andrew M Tang, Qi Maltrud, Mathew E Forsyth, Ryan M Zhang, Chengzhu Zhou, Tian Zhang, Kai Zender, Charles S Wu, Mingxuan Wang, Hailong Turner, Adrian K Singh, Balwinder Richter, Jadwiga H Qin, Yi Petersen, Mark R Mametjanov, Azamat Ma, Po‐Lun Larson, Vincent E Krishna, Jayesh Keen, Noel D Jeffery, Nicole Hunke, Elizabeth C Hannah, Walter M Guba, Oksana Griffin, Brian M Feng, Yan Engwirda, Darren Di Vittorio, Alan V Dang, Cheng Conlon, LeAnn M Chen, Chih‐Chieh‐Jack Brunke, Michael A Bisht, Gautam Benedict, James J Asay‐Davis, Xylar S Zhang, Yuying Zhang, Meng Zeng, Xubin Xie, Shaocheng Wolfram, Phillip J Vo, Tom Veneziani, Milena Tesfa, Teklu K Sreepathi, Sarat Salinger, Andrew G Eyre, JE Jack Reeves Prather, Michael J Mahajan, Salil Li, Qing Jones, Philip W Jacob, Robert L Huebler, Gunther W Huang, Xianglei Hillman, Benjamin R Harrop, Bryce E Foucar, James G Fang, Yilin Comeau, Darin S Caldwell, Peter M Bartoletti, Tony Balaguru, Karthik Taylor, Mark A McCoy, Renata B Leung, L Ruby Bader, David C |
author_facet |
Golaz, Jean‐Christophe Van Roekel, Luke P Zheng, Xue Roberts, Andrew F Wolfe, Jonathan D Lin, Wuyin Bradley, Andrew M Tang, Qi Maltrud, Mathew E Forsyth, Ryan M Zhang, Chengzhu Zhou, Tian Zhang, Kai Zender, Charles S Wu, Mingxuan Wang, Hailong Turner, Adrian K Singh, Balwinder Richter, Jadwiga H Qin, Yi Petersen, Mark R Mametjanov, Azamat Ma, Po‐Lun Larson, Vincent E Krishna, Jayesh Keen, Noel D Jeffery, Nicole Hunke, Elizabeth C Hannah, Walter M Guba, Oksana Griffin, Brian M Feng, Yan Engwirda, Darren Di Vittorio, Alan V Dang, Cheng Conlon, LeAnn M Chen, Chih‐Chieh‐Jack Brunke, Michael A Bisht, Gautam Benedict, James J Asay‐Davis, Xylar S Zhang, Yuying Zhang, Meng Zeng, Xubin Xie, Shaocheng Wolfram, Phillip J Vo, Tom Veneziani, Milena Tesfa, Teklu K Sreepathi, Sarat Salinger, Andrew G Eyre, JE Jack Reeves Prather, Michael J Mahajan, Salil Li, Qing Jones, Philip W Jacob, Robert L Huebler, Gunther W Huang, Xianglei Hillman, Benjamin R Harrop, Bryce E Foucar, James G Fang, Yilin Comeau, Darin S Caldwell, Peter M Bartoletti, Tony Balaguru, Karthik Taylor, Mark A McCoy, Renata B Leung, L Ruby Bader, David C |
author_sort |
Golaz, Jean‐Christophe |
title |
The DOE E3SM Model Version 2: Overview of the Physical Model and Initial Model Evaluation |
title_short |
The DOE E3SM Model Version 2: Overview of the Physical Model and Initial Model Evaluation |
title_full |
The DOE E3SM Model Version 2: Overview of the Physical Model and Initial Model Evaluation |
title_fullStr |
The DOE E3SM Model Version 2: Overview of the Physical Model and Initial Model Evaluation |
title_full_unstemmed |
The DOE E3SM Model Version 2: Overview of the Physical Model and Initial Model Evaluation |
title_sort |
doe e3sm model version 2: overview of the physical model and initial model evaluation |
publisher |
eScholarship, University of California |
publishDate |
2022 |
url |
https://escholarship.org/uc/item/5bp395w8 https://escholarship.org/content/qt5bp395w8/qt5bp395w8.pdf https://doi.org/10.1029/2022ms003156 |
genre |
Sea ice |
genre_facet |
Sea ice |
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Journal of Advances in Modeling Earth Systems, vol 14, iss 12 |
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qt5bp395w8 https://escholarship.org/uc/item/5bp395w8 https://escholarship.org/content/qt5bp395w8/qt5bp395w8.pdf doi:10.1029/2022ms003156 |
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public |
op_doi |
https://doi.org/10.1029/2022ms003156 |
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Journal of Advances in Modeling Earth Systems |
container_volume |
14 |
container_issue |
12 |
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1810478735736963072 |