Sea ice controls net ocean uptake of carbon dioxide by regulating wintertime stratification.

IF 8.9 1区 地球科学 Q1 ENVIRONMENTAL SCIENCES
Communications Earth & Environment Pub Date : 2025-01-01 Epub Date: 2025-06-18 DOI:10.1038/s43247-025-02395-x
Elise S Droste, Dorothee C E Bakker, Hugh J Venables, Elizabeth M Jones, Michael P Meredith, Giorgio Dall'Olmo, Mario Hoppema, Oliver J Legge, Gareth A Lee, Bastien Y Queste
{"title":"Sea ice controls net ocean uptake of carbon dioxide by regulating wintertime stratification.","authors":"Elise S Droste, Dorothee C E Bakker, Hugh J Venables, Elizabeth M Jones, Michael P Meredith, Giorgio Dall'Olmo, Mario Hoppema, Oliver J Legge, Gareth A Lee, Bastien Y Queste","doi":"10.1038/s43247-025-02395-x","DOIUrl":null,"url":null,"abstract":"<p><p>Sea-air exchange of carbon dioxide in the Southern Ocean is strongly seasonal, with ocean uptake in summer, which is partly offset by carbon dioxide outgassing in winter. This seasonal balance can shift due to sea ice conditions, inducing interannual variability in the Southern Ocean carbon sink. A decade (2010-2020) of unique, year-round marine carbonate chemistry observations from the Rothera Time Series (West Antarctic Peninsula) reveals that interannual variability in seawater fugacity of carbon dioxide depends on wintertime processes. Sea ice duration controls ocean stratification, which acts as a gateway to the carbon-rich ocean interior. Consequently, years with persistent sea ice cover and high mean winter stratification absorb, on average, 20% more carbon dioxide than years with less sea ice and weaker stratification in winter. Wintertime marine observations are therefore essential to resolve critical processes and reliably quantify interannual variability of the sea-air carbon dioxide flux in seasonally sea ice-covered regions.</p>","PeriodicalId":10530,"journal":{"name":"Communications Earth & Environment","volume":"6 1","pages":"457"},"PeriodicalIF":8.9000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12176633/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Communications Earth & Environment","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1038/s43247-025-02395-x","RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/6/18 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0

Abstract

Sea-air exchange of carbon dioxide in the Southern Ocean is strongly seasonal, with ocean uptake in summer, which is partly offset by carbon dioxide outgassing in winter. This seasonal balance can shift due to sea ice conditions, inducing interannual variability in the Southern Ocean carbon sink. A decade (2010-2020) of unique, year-round marine carbonate chemistry observations from the Rothera Time Series (West Antarctic Peninsula) reveals that interannual variability in seawater fugacity of carbon dioxide depends on wintertime processes. Sea ice duration controls ocean stratification, which acts as a gateway to the carbon-rich ocean interior. Consequently, years with persistent sea ice cover and high mean winter stratification absorb, on average, 20% more carbon dioxide than years with less sea ice and weaker stratification in winter. Wintertime marine observations are therefore essential to resolve critical processes and reliably quantify interannual variability of the sea-air carbon dioxide flux in seasonally sea ice-covered regions.

海冰通过调节冬季分层来控制海洋对二氧化碳的净吸收。
南大洋中二氧化碳的海气交换具有强烈的季节性,夏季海洋吸收,冬季二氧化碳排放部分抵消。这种季节性平衡可能会因海冰状况而发生变化,从而导致南大洋碳汇的年际变化。来自Rothera时间序列(南极半岛西部)的10年(2010-2020年)独特的全年海洋碳酸盐化学观测表明,海水二氧化碳逸度的年际变化取决于冬季过程。海冰持续时间控制着海洋分层,而海洋分层是通往富含碳的海洋内部的门户。因此,海冰持续覆盖和冬季平均分层高的年份比海冰较少和冬季分层弱的年份平均多吸收20%的二氧化碳。因此,冬季海洋观测对于解决关键过程和可靠地量化季节性海冰覆盖地区海洋-空气二氧化碳通量的年际变化至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Communications Earth & Environment
Communications Earth & Environment Earth and Planetary Sciences-General Earth and Planetary Sciences
CiteScore
8.60
自引率
2.50%
发文量
269
审稿时长
26 weeks
期刊介绍: Communications Earth & Environment is an open access journal from Nature Portfolio publishing high-quality research, reviews and commentary in all areas of the Earth, environmental and planetary sciences. Research papers published by the journal represent significant advances that bring new insight to a specialized area in Earth science, planetary science or environmental science. Communications Earth & Environment has a 2-year impact factor of 7.9 (2022 Journal Citation Reports®). Articles published in the journal in 2022 were downloaded 1,412,858 times. Median time from submission to the first editorial decision is 8 days.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信