气候变化领域集成服务门户(CCPortal): Impact of Marine Heatwaves on Air-Sea CO2 Flux Along the US East Coast

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DOI	10.1029/2023GL105363
	Impact of Marine Heatwaves on Air-Sea CO2 Flux Along the US East Coast
	Edwing, Kelsea; Wu, Zelun; Lu, Wenfang; Li, Xinyu; Cai, Wei-Jun; Yan, Xiao-Hai
发表日期	2024
ISSN	0094-8276
EISSN	1944-8007
起始页码	51
结束页码	1
卷号	51 期号:1
英文摘要	Marine heatwaves (MHWs) are extremely warm ocean temperature events that significantly affect marine environments, but their effects on the coastal carbonate system are still uncertain. In this study, we systematically quantify MHWs' impacts on air-sea carbon dioxide (CO2) flux anomalies (FCO2 ') in the Mid-Atlantic Bight (MAB) and South Atlantic Bight (SAB) from 1992 to 2020. During the longest MHW in both regions, oceanic CO2 uptake capabilities substantially decreased, primarily due to significant increases in the seawater partial pressure of CO2 (pCO(2sea)). For all cases, MHWs played a more significant role in driving pCO(2sea) changes in the MAB than the SAB, where non-thermal drivers dominated pCO(2sea) variability. In the MAB, weakened wind speeds related to wintertime atmospheric perturbations increase ocean temperatures and pCO(2sea), further reducing CO2 uptake during winter MHWs. This work is the first to connect extreme temperatures to coastal air-sea CO2 fluxes. The reduction in CO2 absorption noted during MHWs in this study has important implications for coastal regions to act as continued sinks for excess CO2 emissions in the atmosphere.
英文关键词	marine heatwaves; air-sea CO2 flux; US East Coast; extreme events
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001134821900001
来源期刊	GEOPHYSICAL RESEARCH LETTERS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/294844
作者单位	University of Delaware; Xiamen University; University of Delaware; Xiamen University; Sun Yat Sen University; Southern Marine Science & Engineering Guangdong Laboratory; Southern Marine Science & Engineering Guangdong Laboratory (Zhuhai)
推荐引用方式 GB/T 7714	Edwing, Kelsea,Wu, Zelun,Lu, Wenfang,et al. Impact of Marine Heatwaves on Air-Sea CO2 Flux Along the US East Coast[J],2024,51(1).
APA	Edwing, Kelsea,Wu, Zelun,Lu, Wenfang,Li, Xinyu,Cai, Wei-Jun,&Yan, Xiao-Hai.(2024).Impact of Marine Heatwaves on Air-Sea CO2 Flux Along the US East Coast.GEOPHYSICAL RESEARCH LETTERS,51(1).
MLA	Edwing, Kelsea,et al."Impact of Marine Heatwaves on Air-Sea CO2 Flux Along the US East Coast".GEOPHYSICAL RESEARCH LETTERS 51.1(2024).