The DOE E3SM Coupled Model Version 1: Description and Results at High Resolution
This study provides an overview of the coupled high-resolution Version 1 of the Energy Exascale Earth System Model (E3SMv1) and documents the characteristics of a 50-year-long high-resolution control simulation with time-invariant 1950 forcings following the HighResMIP protocol. In terms of global r...
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ftcdlib:oai:escholarship.org/ark:/13030/qt2qx7r30d 2023-05-15T17:06:11+02:00 The DOE E3SM Coupled Model Version 1: Description and Results at High Resolution Caldwell, PM Mametjanov, A Tang, Q Van Roekel, LP Golaz, JC Lin, W Bader, DC Keen, ND Feng, Y Jacob, R Maltrud, ME Roberts, AF Taylor, MA Veneziani, M Wang, H Wolfe, JD Balaguru, K Cameron-Smith, P Dong, L Klein, SA Leung, LR Li, HY Li, Q Liu, X Neale, RB Pinheiro, M Qian, Y Ullrich, PA Xie, S Yang, Y Zhang, Y Zhang, K Zhou, T 4095 - 4146 2019-12-01 application/pdf https://escholarship.org/uc/item/2qx7r30d unknown eScholarship, University of California qt2qx7r30d https://escholarship.org/uc/item/2qx7r30d public Journal of Advances in Modeling Earth Systems, vol 11, iss 12 Atmospheric Sciences article 2019 ftcdlib 2021-03-28T08:19:10Z This study provides an overview of the coupled high-resolution Version 1 of the Energy Exascale Earth System Model (E3SMv1) and documents the characteristics of a 50-year-long high-resolution control simulation with time-invariant 1950 forcings following the HighResMIP protocol. In terms of global root-mean-squared error metrics, this high-resolution simulation is generally superior to results from the low-resolution configuration of E3SMv1 (due to resolution, tuning changes, and possibly initialization procedure) and compares favorably to models in the CMIP5 ensemble. Ocean and sea ice simulation is particularly improved, due to better resolution of bathymetry, the ability to capture more variability and extremes in winds and currents, and the ability to resolve mesoscale ocean eddies. The largest improvement in this regard is an ice-free Labrador Sea, which is a major problem at low resolution. Interestingly, several features found to improve with resolution in previous studies are insensitive to resolution or even degrade in E3SMv1. Most notable in this regard are warm bias and associated stratocumulus deficiency in eastern subtropical oceans and lack of improvement in El Niño. Another major finding of this study is that resolution increase had negligible impact on climate sensitivity (measured by net feedback determined through uniform +4K prescribed sea surface temperature increase) and aerosol sensitivity. Cloud response to resolution increase consisted of very minor decrease at all levels. Large-scale patterns of precipitation bias were also relatively unaffected by grid spacing. Article in Journal/Newspaper Labrador Sea Sea ice University of California: eScholarship |
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University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Atmospheric Sciences |
spellingShingle |
Atmospheric Sciences Caldwell, PM Mametjanov, A Tang, Q Van Roekel, LP Golaz, JC Lin, W Bader, DC Keen, ND Feng, Y Jacob, R Maltrud, ME Roberts, AF Taylor, MA Veneziani, M Wang, H Wolfe, JD Balaguru, K Cameron-Smith, P Dong, L Klein, SA Leung, LR Li, HY Li, Q Liu, X Neale, RB Pinheiro, M Qian, Y Ullrich, PA Xie, S Yang, Y Zhang, Y Zhang, K Zhou, T The DOE E3SM Coupled Model Version 1: Description and Results at High Resolution |
topic_facet |
Atmospheric Sciences |
description |
This study provides an overview of the coupled high-resolution Version 1 of the Energy Exascale Earth System Model (E3SMv1) and documents the characteristics of a 50-year-long high-resolution control simulation with time-invariant 1950 forcings following the HighResMIP protocol. In terms of global root-mean-squared error metrics, this high-resolution simulation is generally superior to results from the low-resolution configuration of E3SMv1 (due to resolution, tuning changes, and possibly initialization procedure) and compares favorably to models in the CMIP5 ensemble. Ocean and sea ice simulation is particularly improved, due to better resolution of bathymetry, the ability to capture more variability and extremes in winds and currents, and the ability to resolve mesoscale ocean eddies. The largest improvement in this regard is an ice-free Labrador Sea, which is a major problem at low resolution. Interestingly, several features found to improve with resolution in previous studies are insensitive to resolution or even degrade in E3SMv1. Most notable in this regard are warm bias and associated stratocumulus deficiency in eastern subtropical oceans and lack of improvement in El Niño. Another major finding of this study is that resolution increase had negligible impact on climate sensitivity (measured by net feedback determined through uniform +4K prescribed sea surface temperature increase) and aerosol sensitivity. Cloud response to resolution increase consisted of very minor decrease at all levels. Large-scale patterns of precipitation bias were also relatively unaffected by grid spacing. |
format |
Article in Journal/Newspaper |
author |
Caldwell, PM Mametjanov, A Tang, Q Van Roekel, LP Golaz, JC Lin, W Bader, DC Keen, ND Feng, Y Jacob, R Maltrud, ME Roberts, AF Taylor, MA Veneziani, M Wang, H Wolfe, JD Balaguru, K Cameron-Smith, P Dong, L Klein, SA Leung, LR Li, HY Li, Q Liu, X Neale, RB Pinheiro, M Qian, Y Ullrich, PA Xie, S Yang, Y Zhang, Y Zhang, K Zhou, T |
author_facet |
Caldwell, PM Mametjanov, A Tang, Q Van Roekel, LP Golaz, JC Lin, W Bader, DC Keen, ND Feng, Y Jacob, R Maltrud, ME Roberts, AF Taylor, MA Veneziani, M Wang, H Wolfe, JD Balaguru, K Cameron-Smith, P Dong, L Klein, SA Leung, LR Li, HY Li, Q Liu, X Neale, RB Pinheiro, M Qian, Y Ullrich, PA Xie, S Yang, Y Zhang, Y Zhang, K Zhou, T |
author_sort |
Caldwell, PM |
title |
The DOE E3SM Coupled Model Version 1: Description and Results at High Resolution |
title_short |
The DOE E3SM Coupled Model Version 1: Description and Results at High Resolution |
title_full |
The DOE E3SM Coupled Model Version 1: Description and Results at High Resolution |
title_fullStr |
The DOE E3SM Coupled Model Version 1: Description and Results at High Resolution |
title_full_unstemmed |
The DOE E3SM Coupled Model Version 1: Description and Results at High Resolution |
title_sort |
doe e3sm coupled model version 1: description and results at high resolution |
publisher |
eScholarship, University of California |
publishDate |
2019 |
url |
https://escholarship.org/uc/item/2qx7r30d |
op_coverage |
4095 - 4146 |
genre |
Labrador Sea Sea ice |
genre_facet |
Labrador Sea Sea ice |
op_source |
Journal of Advances in Modeling Earth Systems, vol 11, iss 12 |
op_relation |
qt2qx7r30d https://escholarship.org/uc/item/2qx7r30d |
op_rights |
public |
_version_ |
1766061212019195904 |