E3SMv0‐HiLAT: A Modified Climate System Model Targeted for the Study of High‐Latitude Processes
Abstract
We document the configuration, tuning, and evaluation of a modified version of the Community Earth System Model version 1, introduced here as E3SMv0–HiLAT, intended for study of high–latitude processes. E3SMv0–HiLAT incorporates changes to the atmospheric model affecting aerosol transport to high northern latitudes and to reduce shortwave cloud bias over the Southern Ocean. An updated sea ice model includes biogeochemistry that is coupled to an extended version of the ocean model's biogechemistry. This enables cloud nucleation to depend on the changing marine emissions of aerosol precursors, which may be expected in scenarios with strongly changing sea ice extent, oceanic stratification and associated nutrient availability, and atmospheric state. An evaluation of the basic preindustrial state of E3SMv0–HiLAT is presented in order to ensure that its climate is adequate to support future experimentation. Additional capability is not achieved without some cost, relative to the extraordinarily well–tuned model from which it was derived. In particular, a reduction of bias in cloud forcing achieved over the Southern Hemisphere also allows for greater Southern Ocean sea ice extent, a tendency that has been partially but not fully alleviated through experimentation and tuning. The most interesting change in the behavior of the model may be itsmore »
- Authors:
-
- Los Alamos National Laboratory Los Alamos NM USA
- Pacific Northwest National Laboratory Richland WA USA, Now at Department of Earth and Atmospheric SciencesIndiana University, Bloomington Bloomington IN USA
- Pacific Northwest National Laboratory Richland WA USA
- Los Alamos National Laboratory Los Alamos NM USA, Now at Xiamen University Xiamen China
- National Center for Atmospheric Research Boulder CO USA
- Pacific Northwest National Laboratory Richland WA USA, Amazon Web Services Seattle WA USA
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1567943
- Alternate Identifier(s):
- OSTI ID: 1559960; OSTI ID: 1567944; OSTI ID: 1633527
- Report Number(s):
- LA-UR-18-27813; PNNL-SA-137621
Journal ID: ISSN 1942-2466
- Grant/Contract Number:
- 2018LANLF270; 89233218CNA000001; AC05-76RL01830
- Resource Type:
- Published Article
- Journal Name:
- Journal of Advances in Modeling Earth Systems
- Additional Journal Information:
- Journal Name: Journal of Advances in Modeling Earth Systems Journal Volume: 11 Journal Issue: 8; Journal ID: ISSN 1942-2466
- Publisher:
- American Geophysical Union (AGU)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; Earth Sciences; CESM; Earth System Model; high latitudes; clouds
Citation Formats
Hecht, Matthew, Veneziani, Milena, Weijer, Wilbert, Kravitz, Ben, Burrows, Susannah, Comeau, Darin, Hunke, Elizabeth, Jeffery, Nicole, Urrego‐Blanco, Jorge, Wang, Hailong, Wang, Shanlin, Zhang, Jiaxu, Bailey, David, Mills, Catrin, Rasch, Philip, and Urban, Nathan. E3SMv0‐HiLAT: A Modified Climate System Model Targeted for the Study of High‐Latitude Processes. United States: N. p., 2019.
Web. doi:10.1029/2018MS001524.
Hecht, Matthew, Veneziani, Milena, Weijer, Wilbert, Kravitz, Ben, Burrows, Susannah, Comeau, Darin, Hunke, Elizabeth, Jeffery, Nicole, Urrego‐Blanco, Jorge, Wang, Hailong, Wang, Shanlin, Zhang, Jiaxu, Bailey, David, Mills, Catrin, Rasch, Philip, & Urban, Nathan. E3SMv0‐HiLAT: A Modified Climate System Model Targeted for the Study of High‐Latitude Processes. United States. https://doi.org/10.1029/2018MS001524
Hecht, Matthew, Veneziani, Milena, Weijer, Wilbert, Kravitz, Ben, Burrows, Susannah, Comeau, Darin, Hunke, Elizabeth, Jeffery, Nicole, Urrego‐Blanco, Jorge, Wang, Hailong, Wang, Shanlin, Zhang, Jiaxu, Bailey, David, Mills, Catrin, Rasch, Philip, and Urban, Nathan. Sat .
"E3SMv0‐HiLAT: A Modified Climate System Model Targeted for the Study of High‐Latitude Processes". United States. https://doi.org/10.1029/2018MS001524.
@article{osti_1567943,
title = {E3SMv0‐HiLAT: A Modified Climate System Model Targeted for the Study of High‐Latitude Processes},
author = {Hecht, Matthew and Veneziani, Milena and Weijer, Wilbert and Kravitz, Ben and Burrows, Susannah and Comeau, Darin and Hunke, Elizabeth and Jeffery, Nicole and Urrego‐Blanco, Jorge and Wang, Hailong and Wang, Shanlin and Zhang, Jiaxu and Bailey, David and Mills, Catrin and Rasch, Philip and Urban, Nathan},
abstractNote = {We document the configuration, tuning, and evaluation of a modified version of the Community Earth System Model version 1, introduced here as E3SMv0–HiLAT, intended for study of high–latitude processes. E3SMv0–HiLAT incorporates changes to the atmospheric model affecting aerosol transport to high northern latitudes and to reduce shortwave cloud bias over the Southern Ocean. An updated sea ice model includes biogeochemistry that is coupled to an extended version of the ocean model's biogechemistry. This enables cloud nucleation to depend on the changing marine emissions of aerosol precursors, which may be expected in scenarios with strongly changing sea ice extent, oceanic stratification and associated nutrient availability, and atmospheric state. An evaluation of the basic preindustrial state of E3SMv0–HiLAT is presented in order to ensure that its climate is adequate to support future experimentation. Additional capability is not achieved without some cost, relative to the extraordinarily well–tuned model from which it was derived. In particular, a reduction of bias in cloud forcing achieved over the Southern Hemisphere also allows for greater Southern Ocean sea ice extent, a tendency that has been partially but not fully alleviated through experimentation and tuning. The most interesting change in the behavior of the model may be its response to greenhouse gas forcing: While the climate sensitivity is found to be essentially unchanged from that of Community Earth System Model version 1, the adjusted radiative forcing has increased from within one standard deviation above that of Coupled Model Intercomparison Project Phase 5 models to nearly two standard deviations.},
doi = {10.1029/2018MS001524},
journal = {Journal of Advances in Modeling Earth Systems},
number = 8,
volume = 11,
place = {United States},
year = {Sat Aug 24 00:00:00 EDT 2019},
month = {Sat Aug 24 00:00:00 EDT 2019}
}
https://doi.org/10.1029/2018MS001524
Web of Science
Figures / Tables:
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