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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ftplymouthml:oai:plymsea.ac.uk:8888 2023-05-15T13:57:48+02:00 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 2019-06-28 text http://plymsea.ac.uk/id/eprint/8888/ http://plymsea.ac.uk/id/eprint/8888/1/Siegert%20et%20al%20%282019%29%20Frontiers%20in%20Env%20Sci.pdf https://doi.org/10.3389/fenvs.2019.00102 en eng Frontiers in Environmental Science http://plymsea.ac.uk/id/eprint/8888/1/Siegert%20et%20al%20%282019%29%20Frontiers%20in%20Env%20Sci.pdf 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 The Antarctic Peninsula Under a 1.5°C Global Warming Scenario. Frontiers in Environmental Science, 7. https://doi.org/10.3389/fenvs.2019.00102 <https://doi.org/10.3389/fenvs.2019.00102> cc_by_4 CC-BY Publication - Article PeerReviewed 2019 ftplymouthml https://doi.org/10.3389/fenvs.2019.00102 2022-09-13T05:49:44Z 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* Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML) Antarctic The Antarctic Antarctic Peninsula Frontiers in Environmental Science 7 |
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Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML) |
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ftplymouthml |
language |
English |
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 |
spellingShingle |
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 |
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 in Environmental Science |
publishDate |
2019 |
url |
http://plymsea.ac.uk/id/eprint/8888/ http://plymsea.ac.uk/id/eprint/8888/1/Siegert%20et%20al%20%282019%29%20Frontiers%20in%20Env%20Sci.pdf https://doi.org/10.3389/fenvs.2019.00102 |
geographic |
Antarctic The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Ice Shelves Iceberg* |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Ice Shelves Iceberg* |
op_relation |
http://plymsea.ac.uk/id/eprint/8888/1/Siegert%20et%20al%20%282019%29%20Frontiers%20in%20Env%20Sci.pdf 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 The Antarctic Peninsula Under a 1.5°C Global Warming Scenario. Frontiers in Environmental Science, 7. https://doi.org/10.3389/fenvs.2019.00102 <https://doi.org/10.3389/fenvs.2019.00102> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fenvs.2019.00102 |
container_title |
Frontiers in Environmental Science |
container_volume |
7 |
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1766265699004579840 |