气候变化领域集成服务门户(CCPortal): Sea-ice loss amplifies summertime decadal CO2 increase in the western Arctic Ocean

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DOI	10.1038/s41558-020-0784-2
	Sea-ice loss amplifies summertime decadal CO2 increase in the western Arctic Ocean
	Ouyang Z.; Qi D.; Chen L.; Takahashi T.; Zhong W.; DeGrandpre M.D.; Chen B.; Gao Z.; Nishino S.; Murata A.; Sun H.; Robbins L.L.; Jin M.; Cai W.-J.
发表日期	2020
ISSN	1758-678X
起始页码	678
结束页码	684
卷号	10 期号:7
英文摘要	Rapid climate warming and sea-ice loss have induced major changes in the sea surface partial pressure of CO2 (pCO2). However, the long-term trends in the western Arctic Ocean are unknown. Here we show that in 1994–2017, summer pCO2 in the Canada Basin increased at twice the rate of atmospheric increase. Warming and ice loss in the basin have strengthened the pCO2 seasonal amplitude, resulting in the rapid decadal increase. Consequently, the summer air–sea CO2 gradient has reduced rapidly, and may become near zero within two decades. In contrast, there was no significant pCO2 increase on the Chukchi Shelf, where strong and increasing biological uptake has held pCO2 low, and thus the CO2 sink has increased and may increase further due to the atmospheric CO2 increase. Our findings elucidate the contrasting physical and biological drivers controlling sea surface pCO2 variations and trends in response to climate change in the Arctic Ocean. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	air-sea interaction; biological uptake; carbon dioxide; carbon sink; climate change; long-term change; sea ice; sea surface; summer; Arctic Ocean; Canada Basin; Chukchi Sea; Chukchi Shelf
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/142193
作者单位	School of Marine Science and Policy, University of Delaware, Newark, DE, United States; Key Laboratory of Global Change and Marine-Atmospheric Chemistry of Ministry of Natural Resources (MNR), Third Institute of Oceanography, MNR, Xiamen, China; Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, United States; Key Laboratory of Physical Oceanography, Ocean University of China, Qingdao, China; Department of Chemistry and Biochemistry, University of Montana, Missoula, MT, United States; Institute of Arctic Climate and Environment Research, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan; Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan; College of Marine Science, University of South Florida, St. Petersburg, FL, United States; International Arctic Research Center, Fairbanks, AK, United States
推荐引用方式 GB/T 7714	Ouyang Z.,Qi D.,Chen L.,et al. Sea-ice loss amplifies summertime decadal CO2 increase in the western Arctic Ocean[J],2020,10(7).
APA	Ouyang Z..,Qi D..,Chen L..,Takahashi T..,Zhong W..,...&Cai W.-J..(2020).Sea-ice loss amplifies summertime decadal CO2 increase in the western Arctic Ocean.Nature Climate Change,10(7).
MLA	Ouyang Z.,et al."Sea-ice loss amplifies summertime decadal CO2 increase in the western Arctic Ocean".Nature Climate Change 10.7(2020).