Present-day and future Antarctic ice sheet climate and surface mass balance in the Community Earth System Model
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 Ant...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/350703 2023-11-12T04:06:36+01:00 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 Van Kampenhout, Leo van den Broeke, Michiel R. Marine and Atmospheric Research Sub Dynamics Meteorology 2016-09-01 image/pdf https://dspace.library.uu.nl/handle/1874/350703 en eng 0930-7575 https://dspace.library.uu.nl/handle/1874/350703 info:eu-repo/semantics/OpenAccess Antarctica Climate change Climate modelling Ice sheets Sea level Surface mass balance Atmospheric Science Article 2016 ftunivutrecht 2023-11-01T23:14:00Z 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 ± 131 Gtyear-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. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet Sea ice Utrecht University Repository Antarctic The Antarctic |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
topic |
Antarctica Climate change Climate modelling Ice sheets Sea level Surface mass balance Atmospheric Science |
spellingShingle |
Antarctica Climate change Climate modelling Ice sheets Sea level Surface mass balance Atmospheric Science Lenaerts, Jan T M Vizcaino, Miren Fyke, Jeremy 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 |
Antarctica Climate change Climate modelling Ice sheets Sea level Surface mass balance Atmospheric Science |
description |
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 ± 131 Gtyear-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. |
author2 |
Marine and Atmospheric Research Sub Dynamics Meteorology |
format |
Article in Journal/Newspaper |
author |
Lenaerts, Jan T M Vizcaino, Miren Fyke, Jeremy Van Kampenhout, Leo van den Broeke, Michiel R. |
author_facet |
Lenaerts, Jan T M Vizcaino, Miren Fyke, Jeremy 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 |
2016 |
url |
https://dspace.library.uu.nl/handle/1874/350703 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica Ice Sheet Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Sea ice |
op_relation |
0930-7575 https://dspace.library.uu.nl/handle/1874/350703 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782327681540423680 |