Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Sadai, S., Condron, A., DeConto, R., & Pollard, D. Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming. Science...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/26273 2023-05-15T13:48:31+02:00 Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming Sadai, Shaina Condron, Alan DeConto, Robert M. Pollard, David 2020-09-23 https://hdl.handle.net/1912/26273 unknown American Association for the Advancement of Science https://doi.org/10.1126/sciadv.aaz1169 Sadai, S., Condron, A., DeConto, R., & Pollard, D. (2020). Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming. Science Advances, 6(39), eaaz1169. https://hdl.handle.net/1912/26273 doi:10.1126/sciadv.aaz1169 Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ CC-BY-NC Sadai, S., Condron, A., DeConto, R., & Pollard, D. (2020). Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming. Science Advances, 6(39), eaaz1169. doi:10.1126/sciadv.aaz1169 Article 2020 ftwhoas https://doi.org/10.1126/sciadv.aaz1169 2022-05-28T23:03:50Z © The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Sadai, S., Condron, A., DeConto, R., & Pollard, D. Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming. Science Advances, 6(39), (2020): eaaz1169, doi:10.1126/sciadv.aaz1169. Meltwater and ice discharge from a retreating Antarctic Ice Sheet could have important impacts on future global climate. Here, we report on multi-century (present–2250) climate simulations performed using a coupled numerical model integrated under future greenhouse-gas emission scenarios IPCC RCP4.5 and RCP8.5, with meltwater and ice discharge provided by a dynamic-thermodynamic ice sheet model. Accounting for Antarctic discharge raises subsurface ocean temperatures by >1°C at the ice margin relative to simulations ignoring discharge. In contrast, expanded sea ice and 2° to 10°C cooler surface air and surface ocean temperatures in the Southern Ocean delay the increase of projected global mean anthropogenic warming through 2250. In addition, the projected loss of Arctic winter sea ice and weakening of the Atlantic Meridional Overturning Circulation are delayed by several decades. Our results demonstrate a need to accurately account for meltwater input from ice sheets in order to make confident climate predictions. This research was supported by the NSF Office of Polar Programs through NSF grant 1443347, the Biological and Environmental Research (BER) division of the U.S. Department of Energy through grant DE-SC0019263, the NSF through ICER 1664013, and by a grant to the NASA Sea Level Science Team 80NSSC17K0698. Article in Journal/Newspaper Antarc* Antarctic Arctic Ice Sheet Sea ice Southern Ocean Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Arctic Antarctic Southern Ocean Pollard ENVELOPE(64.617,64.617,-70.467,-70.467) Science Advances 6 39 eaaz1169 |
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Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
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© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Sadai, S., Condron, A., DeConto, R., & Pollard, D. Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming. Science Advances, 6(39), (2020): eaaz1169, doi:10.1126/sciadv.aaz1169. Meltwater and ice discharge from a retreating Antarctic Ice Sheet could have important impacts on future global climate. Here, we report on multi-century (present–2250) climate simulations performed using a coupled numerical model integrated under future greenhouse-gas emission scenarios IPCC RCP4.5 and RCP8.5, with meltwater and ice discharge provided by a dynamic-thermodynamic ice sheet model. Accounting for Antarctic discharge raises subsurface ocean temperatures by >1°C at the ice margin relative to simulations ignoring discharge. In contrast, expanded sea ice and 2° to 10°C cooler surface air and surface ocean temperatures in the Southern Ocean delay the increase of projected global mean anthropogenic warming through 2250. In addition, the projected loss of Arctic winter sea ice and weakening of the Atlantic Meridional Overturning Circulation are delayed by several decades. Our results demonstrate a need to accurately account for meltwater input from ice sheets in order to make confident climate predictions. This research was supported by the NSF Office of Polar Programs through NSF grant 1443347, the Biological and Environmental Research (BER) division of the U.S. Department of Energy through grant DE-SC0019263, the NSF through ICER 1664013, and by a grant to the NASA Sea Level Science Team 80NSSC17K0698. |
format |
Article in Journal/Newspaper |
author |
Sadai, Shaina Condron, Alan DeConto, Robert M. Pollard, David |
spellingShingle |
Sadai, Shaina Condron, Alan DeConto, Robert M. Pollard, David Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming |
author_facet |
Sadai, Shaina Condron, Alan DeConto, Robert M. Pollard, David |
author_sort |
Sadai, Shaina |
title |
Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming |
title_short |
Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming |
title_full |
Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming |
title_fullStr |
Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming |
title_full_unstemmed |
Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming |
title_sort |
future climate response to antarctic ice sheet melt caused by anthropogenic warming |
publisher |
American Association for the Advancement of Science |
publishDate |
2020 |
url |
https://hdl.handle.net/1912/26273 |
long_lat |
ENVELOPE(64.617,64.617,-70.467,-70.467) |
geographic |
Arctic Antarctic Southern Ocean Pollard |
geographic_facet |
Arctic Antarctic Southern Ocean Pollard |
genre |
Antarc* Antarctic Arctic Ice Sheet Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Arctic Ice Sheet Sea ice Southern Ocean |
op_source |
Sadai, S., Condron, A., DeConto, R., & Pollard, D. (2020). Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming. Science Advances, 6(39), eaaz1169. doi:10.1126/sciadv.aaz1169 |
op_relation |
https://doi.org/10.1126/sciadv.aaz1169 Sadai, S., Condron, A., DeConto, R., & Pollard, D. (2020). Future climate response to Antarctic Ice Sheet melt caused by anthropogenic warming. Science Advances, 6(39), eaaz1169. https://hdl.handle.net/1912/26273 doi:10.1126/sciadv.aaz1169 |
op_rights |
Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1126/sciadv.aaz1169 |
container_title |
Science Advances |
container_volume |
6 |
container_issue |
39 |
container_start_page |
eaaz1169 |
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1766249369658458112 |