Interannual variation of summer sea surface temperature in the Amundsen Sea, Antarctica
This paper investigates the interannual variability of January sea surface temperature (SST) in the Amundsen Sea (AS) during the period 1982–2022. SST in the Pine Island Bay (PIB) is found to exhibit the most significant interannual variation, with a standard deviation up to 0.6°. Composite analysis...
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2023
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Online Access: | http://dx.doi.org/10.3389/fmars.2023.1050955 https://www.frontiersin.org/articles/10.3389/fmars.2023.1050955/full |
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crfrontiers:10.3389/fmars.2023.1050955 2024-02-11T09:55:17+01:00 Interannual variation of summer sea surface temperature in the Amundsen Sea, Antarctica Yu, Lu-Sha He, Hailun Leng, Hengling Liu, Hailong Lin, Pengfei 2023 http://dx.doi.org/10.3389/fmars.2023.1050955 https://www.frontiersin.org/articles/10.3389/fmars.2023.1050955/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Marine Science volume 10 ISSN 2296-7745 Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography journal-article 2023 crfrontiers https://doi.org/10.3389/fmars.2023.1050955 2024-01-26T10:06:05Z This paper investigates the interannual variability of January sea surface temperature (SST) in the Amundsen Sea (AS) during the period 1982–2022. SST in the Pine Island Bay (PIB) is found to exhibit the most significant interannual variation, with a standard deviation up to 0.6°. Composite analysis indicates that, in warmer years, the January SST at PIB is approximately 1° higher on average than that in cooler years, and its variation in warmer (cooler) years corresponds to lower (higher) sea ice concentration (SIC) and more (less) surface heat flux; the latter factor is primarily influenced by the albedo of SIC. Further analysis suggests that variability in January SIC is largely dominated by northward sea ice motion during the previous November (r = −0.82), which is consistent with the presence of a contemporaneous northerly 10 m wind anomaly trigged by the Amundsen Sea Low (ASL). The ASL-associated northerly wind anomaly drives northward sea ice motion, reduces SIC, and thus increases the downward heat flux that ultimately results in warmer SST, and vice versa. This study identifies the possible mechanism of anomalous January SST in the PIB, which could provide an important clue for seasonal forecasts of summer SST in the AS. Article in Journal/Newspaper Amundsen Sea Antarc* Antarctica Pine Island Pine Island Bay Sea ice Frontiers (Publisher) Amundsen Sea Island Bay ENVELOPE(-109.085,-109.085,59.534,59.534) Pine Island Bay ENVELOPE(-102.000,-102.000,-74.750,-74.750) Frontiers in Marine Science 10 |
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Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
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Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography Yu, Lu-Sha He, Hailun Leng, Hengling Liu, Hailong Lin, Pengfei Interannual variation of summer sea surface temperature in the Amundsen Sea, Antarctica |
topic_facet |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
description |
This paper investigates the interannual variability of January sea surface temperature (SST) in the Amundsen Sea (AS) during the period 1982–2022. SST in the Pine Island Bay (PIB) is found to exhibit the most significant interannual variation, with a standard deviation up to 0.6°. Composite analysis indicates that, in warmer years, the January SST at PIB is approximately 1° higher on average than that in cooler years, and its variation in warmer (cooler) years corresponds to lower (higher) sea ice concentration (SIC) and more (less) surface heat flux; the latter factor is primarily influenced by the albedo of SIC. Further analysis suggests that variability in January SIC is largely dominated by northward sea ice motion during the previous November (r = −0.82), which is consistent with the presence of a contemporaneous northerly 10 m wind anomaly trigged by the Amundsen Sea Low (ASL). The ASL-associated northerly wind anomaly drives northward sea ice motion, reduces SIC, and thus increases the downward heat flux that ultimately results in warmer SST, and vice versa. This study identifies the possible mechanism of anomalous January SST in the PIB, which could provide an important clue for seasonal forecasts of summer SST in the AS. |
format |
Article in Journal/Newspaper |
author |
Yu, Lu-Sha He, Hailun Leng, Hengling Liu, Hailong Lin, Pengfei |
author_facet |
Yu, Lu-Sha He, Hailun Leng, Hengling Liu, Hailong Lin, Pengfei |
author_sort |
Yu, Lu-Sha |
title |
Interannual variation of summer sea surface temperature in the Amundsen Sea, Antarctica |
title_short |
Interannual variation of summer sea surface temperature in the Amundsen Sea, Antarctica |
title_full |
Interannual variation of summer sea surface temperature in the Amundsen Sea, Antarctica |
title_fullStr |
Interannual variation of summer sea surface temperature in the Amundsen Sea, Antarctica |
title_full_unstemmed |
Interannual variation of summer sea surface temperature in the Amundsen Sea, Antarctica |
title_sort |
interannual variation of summer sea surface temperature in the amundsen sea, antarctica |
publisher |
Frontiers Media SA |
publishDate |
2023 |
url |
http://dx.doi.org/10.3389/fmars.2023.1050955 https://www.frontiersin.org/articles/10.3389/fmars.2023.1050955/full |
long_lat |
ENVELOPE(-109.085,-109.085,59.534,59.534) ENVELOPE(-102.000,-102.000,-74.750,-74.750) |
geographic |
Amundsen Sea Island Bay Pine Island Bay |
geographic_facet |
Amundsen Sea Island Bay Pine Island Bay |
genre |
Amundsen Sea Antarc* Antarctica Pine Island Pine Island Bay Sea ice |
genre_facet |
Amundsen Sea Antarc* Antarctica Pine Island Pine Island Bay Sea ice |
op_source |
Frontiers in Marine Science volume 10 ISSN 2296-7745 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmars.2023.1050955 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
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1790594852993368064 |