Present-day and future Antarctic ice sheet climate and surface mass balance in the Community Earth System Model
Here, we present climate and surface mass balance (SMB) of the Antarctic ice sheet (AIS) as simulated by the global, coupled ocean–atmosphere–land Community Earth System Model (CESM) with a horizontal resolution of ~1° in the past, present and future (1850–2100). CESM correctly simulates present-day...
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Online Access: | http://www.osti.gov/servlets/purl/1352361 https://www.osti.gov/biblio/1352361 https://doi.org/10.1007/s00382-015-2907-4 |
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ftosti:oai:osti.gov:1352361 2023-07-30T03:59:17+02:00 Present-day and future Antarctic ice sheet climate and surface mass balance in the Community Earth System Model Lenaerts, Jan T. M. Vizcaino, Miren Fyke, Jeremy Garmeson van Kampenhout, Leo van den Broeke, Michiel R. 2023-06-26 application/pdf http://www.osti.gov/servlets/purl/1352361 https://www.osti.gov/biblio/1352361 https://doi.org/10.1007/s00382-015-2907-4 unknown http://www.osti.gov/servlets/purl/1352361 https://www.osti.gov/biblio/1352361 https://doi.org/10.1007/s00382-015-2907-4 doi:10.1007/s00382-015-2907-4 54 ENVIRONMENTAL SCIENCES 97 MATHEMATICS AND COMPUTING 2023 ftosti https://doi.org/10.1007/s00382-015-2907-4 2023-07-11T09:18:09Z Here, we present climate and surface mass balance (SMB) of the Antarctic ice sheet (AIS) as simulated by the global, coupled ocean–atmosphere–land Community Earth System Model (CESM) with a horizontal resolution of ~1° in the past, present and future (1850–2100). CESM correctly simulates present-day Antarctic sea ice extent, large-scale atmospheric circulation and near-surface climate, but fails to simulate the recent expansion of Antarctic sea ice. The present-day Antarctic ice sheet SMB equals 2280 ± 131Gtyear –1 , which concurs with existing independent estimates of AIS SMB. When forced by two CMIP5 climate change scenarios (high mitigation scenario RCP2.6 and high-emission scenario RCP8.5), CESM projects an increase of Antarctic ice sheet SMB of about 70 Gtyear –1 per degree warming. This increase is driven by enhanced snowfall, which is partially counteracted by more surface melt and runoff along the ice sheet’s edges. This intensifying hydrological cycle is predominantly driven by atmospheric warming, which increases (1) the moisture-carrying capacity of the atmosphere, (2) oceanic source region evaporation, and (3) summer AIS cloud liquid water content. Other/Unknown Material Antarc* Antarctic Ice Sheet Sea ice SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Antarctic The Antarctic Climate Dynamics 47 5-6 1367 1381 |
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Open Polar |
collection |
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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ftosti |
language |
unknown |
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54 ENVIRONMENTAL SCIENCES 97 MATHEMATICS AND COMPUTING |
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54 ENVIRONMENTAL SCIENCES 97 MATHEMATICS AND COMPUTING Lenaerts, Jan T. M. Vizcaino, Miren Fyke, Jeremy Garmeson van Kampenhout, Leo van den Broeke, Michiel R. Present-day and future Antarctic ice sheet climate and surface mass balance in the Community Earth System Model |
topic_facet |
54 ENVIRONMENTAL SCIENCES 97 MATHEMATICS AND COMPUTING |
description |
Here, we present climate and surface mass balance (SMB) of the Antarctic ice sheet (AIS) as simulated by the global, coupled ocean–atmosphere–land Community Earth System Model (CESM) with a horizontal resolution of ~1° in the past, present and future (1850–2100). CESM correctly simulates present-day Antarctic sea ice extent, large-scale atmospheric circulation and near-surface climate, but fails to simulate the recent expansion of Antarctic sea ice. The present-day Antarctic ice sheet SMB equals 2280 ± 131Gtyear –1 , which concurs with existing independent estimates of AIS SMB. When forced by two CMIP5 climate change scenarios (high mitigation scenario RCP2.6 and high-emission scenario RCP8.5), CESM projects an increase of Antarctic ice sheet SMB of about 70 Gtyear –1 per degree warming. This increase is driven by enhanced snowfall, which is partially counteracted by more surface melt and runoff along the ice sheet’s edges. This intensifying hydrological cycle is predominantly driven by atmospheric warming, which increases (1) the moisture-carrying capacity of the atmosphere, (2) oceanic source region evaporation, and (3) summer AIS cloud liquid water content. |
author |
Lenaerts, Jan T. M. Vizcaino, Miren Fyke, Jeremy Garmeson van Kampenhout, Leo van den Broeke, Michiel R. |
author_facet |
Lenaerts, Jan T. M. Vizcaino, Miren Fyke, Jeremy Garmeson van Kampenhout, Leo van den Broeke, Michiel R. |
author_sort |
Lenaerts, Jan T. M. |
title |
Present-day and future Antarctic ice sheet climate and surface mass balance in the Community Earth System Model |
title_short |
Present-day and future Antarctic ice sheet climate and surface mass balance in the Community Earth System Model |
title_full |
Present-day and future Antarctic ice sheet climate and surface mass balance in the Community Earth System Model |
title_fullStr |
Present-day and future Antarctic ice sheet climate and surface mass balance in the Community Earth System Model |
title_full_unstemmed |
Present-day and future Antarctic ice sheet climate and surface mass balance in the Community Earth System Model |
title_sort |
present-day and future antarctic ice sheet climate and surface mass balance in the community earth system model |
publishDate |
2023 |
url |
http://www.osti.gov/servlets/purl/1352361 https://www.osti.gov/biblio/1352361 https://doi.org/10.1007/s00382-015-2907-4 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Ice Sheet Sea ice |
genre_facet |
Antarc* Antarctic Ice Sheet Sea ice |
op_relation |
http://www.osti.gov/servlets/purl/1352361 https://www.osti.gov/biblio/1352361 https://doi.org/10.1007/s00382-015-2907-4 doi:10.1007/s00382-015-2907-4 |
op_doi |
https://doi.org/10.1007/s00382-015-2907-4 |
container_title |
Climate Dynamics |
container_volume |
47 |
container_issue |
5-6 |
container_start_page |
1367 |
op_container_end_page |
1381 |
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1772810022193987584 |