Sea‐ice loss accelerates carbon cycling and enhances seasonal extremes of acidification in the Arctic Chukchi Sea
Abstract The Chukchi Sea shelf (CSS) is a highly productive region in the Arctic Ocean and it is highly efficient for absorbing atmospheric carbon dioxide and exporting and retaining carbon in the deep sea. However, with global warming, the carbon retention time in CSS may decrease, leading to less...
Published in: | Limnology and Oceanography Letters |
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Online Access: | http://dx.doi.org/10.1002/lol2.10378 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10378 |
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crwiley:10.1002/lol2.10378 2024-06-02T08:01:32+00:00 Sea‐ice loss accelerates carbon cycling and enhances seasonal extremes of acidification in the Arctic Chukchi Sea Zhang, Yixing Wu, Yingxu Cai, Wei‐Jun Yi, Xiangqi Gao, Xiang Bi, Haibo Zhuang, Yanpei Chen, Liqi Qi, Di National Key Research and Development Program of China National Natural Science Foundation of China Natural Science Foundation of Fujian Province 2024 http://dx.doi.org/10.1002/lol2.10378 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10378 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Limnology and Oceanography Letters ISSN 2378-2242 2378-2242 journal-article 2024 crwiley https://doi.org/10.1002/lol2.10378 2024-05-03T11:28:10Z Abstract The Chukchi Sea shelf (CSS) is a highly productive region in the Arctic Ocean and it is highly efficient for absorbing atmospheric carbon dioxide and exporting and retaining carbon in the deep sea. However, with global warming, the carbon retention time in CSS may decrease, leading to less efficient carbon export. Here, we investigate the seasonal variability of carbonate chemistry in CSS using three sets of late‐ vs. early‐summer reoccupations of the same transect. Our findings demonstrate substantially increased and rapid degradation of biologically produced organic matter and therefore acidification over time in the southern CSS due to earlier sea‐ice retreat, resulting in significantly shorter carbon retention time. In sharp contrast, no increased degradation has been observed in the northern CSS where photosynthesis has just commenced. In the future, climate change would further diminish the carbon export capacity and exacerbate seasonal acidification not only within CSS but also across other polar coastal oceans. Article in Journal/Newspaper Arctic Arctic Ocean Chukchi Chukchi Sea Climate change Global warming Sea ice Wiley Online Library Arctic Arctic Ocean Chukchi Sea Limnology and Oceanography Letters |
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Open Polar |
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Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract The Chukchi Sea shelf (CSS) is a highly productive region in the Arctic Ocean and it is highly efficient for absorbing atmospheric carbon dioxide and exporting and retaining carbon in the deep sea. However, with global warming, the carbon retention time in CSS may decrease, leading to less efficient carbon export. Here, we investigate the seasonal variability of carbonate chemistry in CSS using three sets of late‐ vs. early‐summer reoccupations of the same transect. Our findings demonstrate substantially increased and rapid degradation of biologically produced organic matter and therefore acidification over time in the southern CSS due to earlier sea‐ice retreat, resulting in significantly shorter carbon retention time. In sharp contrast, no increased degradation has been observed in the northern CSS where photosynthesis has just commenced. In the future, climate change would further diminish the carbon export capacity and exacerbate seasonal acidification not only within CSS but also across other polar coastal oceans. |
author2 |
National Key Research and Development Program of China National Natural Science Foundation of China Natural Science Foundation of Fujian Province |
format |
Article in Journal/Newspaper |
author |
Zhang, Yixing Wu, Yingxu Cai, Wei‐Jun Yi, Xiangqi Gao, Xiang Bi, Haibo Zhuang, Yanpei Chen, Liqi Qi, Di |
spellingShingle |
Zhang, Yixing Wu, Yingxu Cai, Wei‐Jun Yi, Xiangqi Gao, Xiang Bi, Haibo Zhuang, Yanpei Chen, Liqi Qi, Di Sea‐ice loss accelerates carbon cycling and enhances seasonal extremes of acidification in the Arctic Chukchi Sea |
author_facet |
Zhang, Yixing Wu, Yingxu Cai, Wei‐Jun Yi, Xiangqi Gao, Xiang Bi, Haibo Zhuang, Yanpei Chen, Liqi Qi, Di |
author_sort |
Zhang, Yixing |
title |
Sea‐ice loss accelerates carbon cycling and enhances seasonal extremes of acidification in the Arctic Chukchi Sea |
title_short |
Sea‐ice loss accelerates carbon cycling and enhances seasonal extremes of acidification in the Arctic Chukchi Sea |
title_full |
Sea‐ice loss accelerates carbon cycling and enhances seasonal extremes of acidification in the Arctic Chukchi Sea |
title_fullStr |
Sea‐ice loss accelerates carbon cycling and enhances seasonal extremes of acidification in the Arctic Chukchi Sea |
title_full_unstemmed |
Sea‐ice loss accelerates carbon cycling and enhances seasonal extremes of acidification in the Arctic Chukchi Sea |
title_sort |
sea‐ice loss accelerates carbon cycling and enhances seasonal extremes of acidification in the arctic chukchi sea |
publisher |
Wiley |
publishDate |
2024 |
url |
http://dx.doi.org/10.1002/lol2.10378 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10378 |
geographic |
Arctic Arctic Ocean Chukchi Sea |
geographic_facet |
Arctic Arctic Ocean Chukchi Sea |
genre |
Arctic Arctic Ocean Chukchi Chukchi Sea Climate change Global warming Sea ice |
genre_facet |
Arctic Arctic Ocean Chukchi Chukchi Sea Climate change Global warming Sea ice |
op_source |
Limnology and Oceanography Letters ISSN 2378-2242 2378-2242 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/lol2.10378 |
container_title |
Limnology and Oceanography Letters |
_version_ |
1800745922903146496 |