Description and Demonstration of the Coupled Community Earth System Model v2 – Community Ice Sheet Model v2 (CESM2-CISM2)
Earth system/ice-sheet coupling is an area of recent, major Earth System Model (ESM) development. This work occurs at the intersection of glaciology and climate science and is motivated by a need for robust projections of sea-level rise. The Community Ice Sheet Model version 2 (CISM2) is the newest...
Published in: | Journal of Advances in Modeling Earth Systems |
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2021
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Online Access: | http://resolver.tudelft.nl/uuid:71e0e46c-316d-4092-bbe6-5c9f807f0dda https://doi.org/10.1029/2020MS002356 |
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fttudelft:oai:tudelft.nl:uuid:71e0e46c-316d-4092-bbe6-5c9f807f0dda 2024-02-11T10:04:19+01:00 Description and Demonstration of the Coupled Community Earth System Model v2 – Community Ice Sheet Model v2 (CESM2-CISM2) Muntjewerf, L. (author) Sacks, William J. (author) Lofverstrom, Marcus (author) Fyke, Jeremy (author) Lipscomb, William H. (author) Ernani da Silva, C. (author) Vizcaino, M. (author) Thayer-Calder, Katherine (author) T. M. Lenaerts, Jan (author) Sellevold, R. (author) 2021 http://resolver.tudelft.nl/uuid:71e0e46c-316d-4092-bbe6-5c9f807f0dda https://doi.org/10.1029/2020MS002356 en eng http://www.scopus.com/inward/record.url?scp=85108621937&partnerID=8YFLogxK Journal of Advances in Modeling Earth Systems--1942-2466--59a0b3bd-5d54-41d6-8e24-f4a1abc61ca1 http://resolver.tudelft.nl/uuid:71e0e46c-316d-4092-bbe6-5c9f807f0dda https://doi.org/10.1029/2020MS002356 © 2021 L. Muntjewerf, William J. Sacks, Marcus Lofverstrom, Jeremy Fyke, William H. Lipscomb, C. Ernani da Silva, M. Vizcaino, Katherine Thayer-Calder, Jan T. M. Lenaerts, R. Sellevold Earth system modeling ice sheet modeling model coupling journal article 2021 fttudelft https://doi.org/10.1029/2020MS002356 2024-01-24T23:32:00Z Earth system/ice-sheet coupling is an area of recent, major Earth System Model (ESM) development. This work occurs at the intersection of glaciology and climate science and is motivated by a need for robust projections of sea-level rise. The Community Ice Sheet Model version 2 (CISM2) is the newest component model of the Community Earth System Model version 2 (CESM2). This study describes the coupling and novel capabilities of the model, including: (1) an advanced energy-balance-based surface mass balance calculation in the land component with downscaling via elevation classes; (2) a closed freshwater budget from ice sheet to the ocean from surface runoff, basal melting, and ice discharge; (3) dynamic land surface types; and (4) dynamic atmospheric topography. The Earth system/ice-sheet coupling is demonstrated in a simulation with an evolving Greenland Ice Sheet (GrIS) under an idealized high CO 2 scenario. The model simulates a large expansion of ablation areas (where surface ablation exceeds snow accumulation) and a large increase in surface runoff. This results in an elevated freshwater flux to the ocean, as well as thinning of the ice sheet and area retreat. These GrIS changes result in reduced Greenland surface albedo, changes in the sign and magnitude of sensible and latent heat fluxes, and modified surface roughness and overall ice sheet topography. Representation of these couplings between climate and ice sheets is key for the simulation of ice and climate interactions. Physical and Space Geodesy Article in Journal/Newspaper Greenland Ice Sheet Delft University of Technology: Institutional Repository Greenland Journal of Advances in Modeling Earth Systems 13 6 |
institution |
Open Polar |
collection |
Delft University of Technology: Institutional Repository |
op_collection_id |
fttudelft |
language |
English |
topic |
Earth system modeling ice sheet modeling model coupling |
spellingShingle |
Earth system modeling ice sheet modeling model coupling Muntjewerf, L. (author) Sacks, William J. (author) Lofverstrom, Marcus (author) Fyke, Jeremy (author) Lipscomb, William H. (author) Ernani da Silva, C. (author) Vizcaino, M. (author) Thayer-Calder, Katherine (author) T. M. Lenaerts, Jan (author) Sellevold, R. (author) Description and Demonstration of the Coupled Community Earth System Model v2 – Community Ice Sheet Model v2 (CESM2-CISM2) |
topic_facet |
Earth system modeling ice sheet modeling model coupling |
description |
Earth system/ice-sheet coupling is an area of recent, major Earth System Model (ESM) development. This work occurs at the intersection of glaciology and climate science and is motivated by a need for robust projections of sea-level rise. The Community Ice Sheet Model version 2 (CISM2) is the newest component model of the Community Earth System Model version 2 (CESM2). This study describes the coupling and novel capabilities of the model, including: (1) an advanced energy-balance-based surface mass balance calculation in the land component with downscaling via elevation classes; (2) a closed freshwater budget from ice sheet to the ocean from surface runoff, basal melting, and ice discharge; (3) dynamic land surface types; and (4) dynamic atmospheric topography. The Earth system/ice-sheet coupling is demonstrated in a simulation with an evolving Greenland Ice Sheet (GrIS) under an idealized high CO 2 scenario. The model simulates a large expansion of ablation areas (where surface ablation exceeds snow accumulation) and a large increase in surface runoff. This results in an elevated freshwater flux to the ocean, as well as thinning of the ice sheet and area retreat. These GrIS changes result in reduced Greenland surface albedo, changes in the sign and magnitude of sensible and latent heat fluxes, and modified surface roughness and overall ice sheet topography. Representation of these couplings between climate and ice sheets is key for the simulation of ice and climate interactions. Physical and Space Geodesy |
format |
Article in Journal/Newspaper |
author |
Muntjewerf, L. (author) Sacks, William J. (author) Lofverstrom, Marcus (author) Fyke, Jeremy (author) Lipscomb, William H. (author) Ernani da Silva, C. (author) Vizcaino, M. (author) Thayer-Calder, Katherine (author) T. M. Lenaerts, Jan (author) Sellevold, R. (author) |
author_facet |
Muntjewerf, L. (author) Sacks, William J. (author) Lofverstrom, Marcus (author) Fyke, Jeremy (author) Lipscomb, William H. (author) Ernani da Silva, C. (author) Vizcaino, M. (author) Thayer-Calder, Katherine (author) T. M. Lenaerts, Jan (author) Sellevold, R. (author) |
author_sort |
Muntjewerf, L. (author) |
title |
Description and Demonstration of the Coupled Community Earth System Model v2 – Community Ice Sheet Model v2 (CESM2-CISM2) |
title_short |
Description and Demonstration of the Coupled Community Earth System Model v2 – Community Ice Sheet Model v2 (CESM2-CISM2) |
title_full |
Description and Demonstration of the Coupled Community Earth System Model v2 – Community Ice Sheet Model v2 (CESM2-CISM2) |
title_fullStr |
Description and Demonstration of the Coupled Community Earth System Model v2 – Community Ice Sheet Model v2 (CESM2-CISM2) |
title_full_unstemmed |
Description and Demonstration of the Coupled Community Earth System Model v2 – Community Ice Sheet Model v2 (CESM2-CISM2) |
title_sort |
description and demonstration of the coupled community earth system model v2 – community ice sheet model v2 (cesm2-cism2) |
publishDate |
2021 |
url |
http://resolver.tudelft.nl/uuid:71e0e46c-316d-4092-bbe6-5c9f807f0dda https://doi.org/10.1029/2020MS002356 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_relation |
http://www.scopus.com/inward/record.url?scp=85108621937&partnerID=8YFLogxK Journal of Advances in Modeling Earth Systems--1942-2466--59a0b3bd-5d54-41d6-8e24-f4a1abc61ca1 http://resolver.tudelft.nl/uuid:71e0e46c-316d-4092-bbe6-5c9f807f0dda https://doi.org/10.1029/2020MS002356 |
op_rights |
© 2021 L. Muntjewerf, William J. Sacks, Marcus Lofverstrom, Jeremy Fyke, William H. Lipscomb, C. Ernani da Silva, M. Vizcaino, Katherine Thayer-Calder, Jan T. M. Lenaerts, R. Sellevold |
op_doi |
https://doi.org/10.1029/2020MS002356 |
container_title |
Journal of Advances in Modeling Earth Systems |
container_volume |
13 |
container_issue |
6 |
_version_ |
1790600890936197120 |