On the crucial role of atmospheric rivers in the two major Weddell Polynya events in 1973 and 2017 in Antarctica
This study reports the occurrence of intense atmospheric rivers (ARs) during the two large Weddell Polynya events in November 1973 and September 2017 and investigates their role in the opening events via their enhancement of sea ice melt. Few days before the polynya openings, persistent ARs maintain...
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ftpubmed:oai:pubmedcentral.nih.gov:7673740 2023-05-15T13:42:05+02:00 On the crucial role of atmospheric rivers in the two major Weddell Polynya events in 1973 and 2017 in Antarctica Francis, Diana Mattingly, Kyle S. Temimi, Marouane Massom, Rob Heil, Petra 2020-11-11 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7673740/ http://www.ncbi.nlm.nih.gov/pubmed/33177087 https://doi.org/10.1126/sciadv.abc2695 en eng American Association for the Advancement of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7673740/ http://www.ncbi.nlm.nih.gov/pubmed/33177087 http://dx.doi.org/10.1126/sciadv.abc2695 Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/ https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. CC-BY-NC Sci Adv Research Articles Text 2020 ftpubmed https://doi.org/10.1126/sciadv.abc2695 2020-11-29T01:22:40Z This study reports the occurrence of intense atmospheric rivers (ARs) during the two large Weddell Polynya events in November 1973 and September 2017 and investigates their role in the opening events via their enhancement of sea ice melt. Few days before the polynya openings, persistent ARs maintained a sustained positive total energy flux at the surface, resulting in sea ice thinning and a decline in sea ice concentration in the Maud Rise region. The ARs were associated with anomalously high amounts of total precipitable water and cloud liquid water content exceeding 3 SDs above the climatological mean. The above-normal integrated water vapor transport (IVT above the 99th climatological percentile), as well as opaque cloud bands, warmed the surface (+10°C in skin and air temperature) via substantial increases (+250 W m(−2)) in downward longwave radiation and advection of warm air masses, resulting in sea ice melt and inhibited nighttime refreezing. Text Antarc* Antarctica Sea ice PubMed Central (PMC) Maud Rise ENVELOPE(3.000,3.000,-66.000,-66.000) Weddell Science Advances 6 46 eabc2695 |
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Research Articles |
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Research Articles Francis, Diana Mattingly, Kyle S. Temimi, Marouane Massom, Rob Heil, Petra On the crucial role of atmospheric rivers in the two major Weddell Polynya events in 1973 and 2017 in Antarctica |
topic_facet |
Research Articles |
description |
This study reports the occurrence of intense atmospheric rivers (ARs) during the two large Weddell Polynya events in November 1973 and September 2017 and investigates their role in the opening events via their enhancement of sea ice melt. Few days before the polynya openings, persistent ARs maintained a sustained positive total energy flux at the surface, resulting in sea ice thinning and a decline in sea ice concentration in the Maud Rise region. The ARs were associated with anomalously high amounts of total precipitable water and cloud liquid water content exceeding 3 SDs above the climatological mean. The above-normal integrated water vapor transport (IVT above the 99th climatological percentile), as well as opaque cloud bands, warmed the surface (+10°C in skin and air temperature) via substantial increases (+250 W m(−2)) in downward longwave radiation and advection of warm air masses, resulting in sea ice melt and inhibited nighttime refreezing. |
format |
Text |
author |
Francis, Diana Mattingly, Kyle S. Temimi, Marouane Massom, Rob Heil, Petra |
author_facet |
Francis, Diana Mattingly, Kyle S. Temimi, Marouane Massom, Rob Heil, Petra |
author_sort |
Francis, Diana |
title |
On the crucial role of atmospheric rivers in the two major Weddell Polynya events in 1973 and 2017 in Antarctica |
title_short |
On the crucial role of atmospheric rivers in the two major Weddell Polynya events in 1973 and 2017 in Antarctica |
title_full |
On the crucial role of atmospheric rivers in the two major Weddell Polynya events in 1973 and 2017 in Antarctica |
title_fullStr |
On the crucial role of atmospheric rivers in the two major Weddell Polynya events in 1973 and 2017 in Antarctica |
title_full_unstemmed |
On the crucial role of atmospheric rivers in the two major Weddell Polynya events in 1973 and 2017 in Antarctica |
title_sort |
on the crucial role of atmospheric rivers in the two major weddell polynya events in 1973 and 2017 in antarctica |
publisher |
American Association for the Advancement of Science |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7673740/ http://www.ncbi.nlm.nih.gov/pubmed/33177087 https://doi.org/10.1126/sciadv.abc2695 |
long_lat |
ENVELOPE(3.000,3.000,-66.000,-66.000) |
geographic |
Maud Rise Weddell |
geographic_facet |
Maud Rise Weddell |
genre |
Antarc* Antarctica Sea ice |
genre_facet |
Antarc* Antarctica Sea ice |
op_source |
Sci Adv |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7673740/ http://www.ncbi.nlm.nih.gov/pubmed/33177087 http://dx.doi.org/10.1126/sciadv.abc2695 |
op_rights |
Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/ https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1126/sciadv.abc2695 |
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Science Advances |
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6 |
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46 |
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