The Antarctic Peninsula under a 1.5°C global warming scenario

Warming of the Antarctic Peninsula in the latter half of the twentieth century was greater than any other terrestrial environment in the Southern Hemisphere, and clear cryospheric and biological consequences have been observed. Under a global 1.5◦C scenario, warming in the Antarctic Peninsula is lik...

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Main Authors: Siegert, M, Atkinson, A, Banwell, A, Brandon, M, Convey, P, Davies, B, Downie, R, Edwards, T, Hubbard, B, Marshall, G, Rogelj, J, Rumble, J, Stroeve, J, Vaughan, D
Format: Article in Journal/Newspaper
Language:English
Published: Frontiers Media SA 2019
Subjects:
Online Access:https://www.repository.cam.ac.uk/handle/1810/294705
https://doi.org/10.17863/CAM.41810
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spelling ftunivcam:oai:www.repository.cam.ac.uk:1810/294705 2024-01-14T10:00:25+01:00 The Antarctic Peninsula under a 1.5°C global warming scenario Siegert, M Atkinson, A Banwell, A Brandon, M Convey, P Davies, B Downie, R Edwards, T Hubbard, B Marshall, G Rogelj, J Rumble, J Stroeve, J Vaughan, D 2019 application/pdf https://www.repository.cam.ac.uk/handle/1810/294705 https://doi.org/10.17863/CAM.41810 eng eng Frontiers Media SA http://dx.doi.org/10.3389/fenvs.2019.00102 Frontiers in Environmental Science https://www.repository.cam.ac.uk/handle/1810/294705 doi:10.17863/CAM.41810 Publisher's own licence polar change glaciers and climate sea ice marine biology terrestrial biology Article 2019 ftunivcam https://doi.org/10.17863/CAM.41810 2023-12-21T23:19:24Z Warming of the Antarctic Peninsula in the latter half of the twentieth century was greater than any other terrestrial environment in the Southern Hemisphere, and clear cryospheric and biological consequences have been observed. Under a global 1.5◦C scenario, warming in the Antarctic Peninsula is likely to increase the number of days above 0◦C, with up to 130 of such days each year in the northern Peninsula. Ocean turbulence will increase, making the circumpolar deep water (CDW) both warmer and shallower, delivering heat to the sea surface and to coastal margins. Thinning and recession of marine margins of glaciers and ice caps is expected to accelerate to terrestrial limits, increasing iceberg production, after which glacier retreat may slow on land. Ice shelves will experience continued increase in meltwater production and consequent structural change, but not imminent regional collapses. Marine biota can respond in multiple ways to climatic changes, with effects complicated by past resource extraction activities. Southward distribution shifts have been observed in multiple taxa during the last century and these are likely to continue. Exposed (ice free) terrestrial areas will expand, providing new habitats for native and non-native organisms, but with a potential loss of genetic diversity. While native terrestrial biota are likely to benefit from modest warming, the greatest threat to native biodiversity is from non-native terrestrial species. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Ice Shelves Iceberg* Sea ice Apollo - University of Cambridge Repository Antarctic Antarctic Peninsula The Antarctic
institution Open Polar
collection Apollo - University of Cambridge Repository
op_collection_id ftunivcam
language English
topic polar change
glaciers and climate
sea ice
marine biology
terrestrial biology
spellingShingle polar change
glaciers and climate
sea ice
marine biology
terrestrial biology
Siegert, M
Atkinson, A
Banwell, A
Brandon, M
Convey, P
Davies, B
Downie, R
Edwards, T
Hubbard, B
Marshall, G
Rogelj, J
Rumble, J
Stroeve, J
Vaughan, D
The Antarctic Peninsula under a 1.5°C global warming scenario
topic_facet polar change
glaciers and climate
sea ice
marine biology
terrestrial biology
description Warming of the Antarctic Peninsula in the latter half of the twentieth century was greater than any other terrestrial environment in the Southern Hemisphere, and clear cryospheric and biological consequences have been observed. Under a global 1.5◦C scenario, warming in the Antarctic Peninsula is likely to increase the number of days above 0◦C, with up to 130 of such days each year in the northern Peninsula. Ocean turbulence will increase, making the circumpolar deep water (CDW) both warmer and shallower, delivering heat to the sea surface and to coastal margins. Thinning and recession of marine margins of glaciers and ice caps is expected to accelerate to terrestrial limits, increasing iceberg production, after which glacier retreat may slow on land. Ice shelves will experience continued increase in meltwater production and consequent structural change, but not imminent regional collapses. Marine biota can respond in multiple ways to climatic changes, with effects complicated by past resource extraction activities. Southward distribution shifts have been observed in multiple taxa during the last century and these are likely to continue. Exposed (ice free) terrestrial areas will expand, providing new habitats for native and non-native organisms, but with a potential loss of genetic diversity. While native terrestrial biota are likely to benefit from modest warming, the greatest threat to native biodiversity is from non-native terrestrial species.
format Article in Journal/Newspaper
author Siegert, M
Atkinson, A
Banwell, A
Brandon, M
Convey, P
Davies, B
Downie, R
Edwards, T
Hubbard, B
Marshall, G
Rogelj, J
Rumble, J
Stroeve, J
Vaughan, D
author_facet Siegert, M
Atkinson, A
Banwell, A
Brandon, M
Convey, P
Davies, B
Downie, R
Edwards, T
Hubbard, B
Marshall, G
Rogelj, J
Rumble, J
Stroeve, J
Vaughan, D
author_sort Siegert, M
title The Antarctic Peninsula under a 1.5°C global warming scenario
title_short The Antarctic Peninsula under a 1.5°C global warming scenario
title_full The Antarctic Peninsula under a 1.5°C global warming scenario
title_fullStr The Antarctic Peninsula under a 1.5°C global warming scenario
title_full_unstemmed The Antarctic Peninsula under a 1.5°C global warming scenario
title_sort antarctic peninsula under a 1.5°c global warming scenario
publisher Frontiers Media SA
publishDate 2019
url https://www.repository.cam.ac.uk/handle/1810/294705
https://doi.org/10.17863/CAM.41810
geographic Antarctic
Antarctic Peninsula
The Antarctic
geographic_facet Antarctic
Antarctic Peninsula
The Antarctic
genre Antarc*
Antarctic
Antarctic Peninsula
Ice Shelves
Iceberg*
Sea ice
genre_facet Antarc*
Antarctic
Antarctic Peninsula
Ice Shelves
Iceberg*
Sea ice
op_relation https://www.repository.cam.ac.uk/handle/1810/294705
doi:10.17863/CAM.41810
op_rights Publisher's own licence
op_doi https://doi.org/10.17863/CAM.41810
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