气候变化领域集成服务门户(CCPortal): Amplified wintertime Barents Sea warming linked to intensified Barents oscillation

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DOI	10.1088/1748-9326/ac5bb3
	Amplified wintertime Barents Sea warming linked to intensified Barents oscillation
	Cai, Ziyi; You, Qinglong; Chen, Hans W.; Zhang, Ruonan; Chen, Deliang; Chen, Jinlei; Kang, Shichang; Cohen, Judah
通讯作者	You, QL ; Zhang, RN (通讯作者)，Fudan Univ, Inst Atmospher Sci, Dept Atmospher & Ocean Sci, Shanghai 200438, Peoples R China. ; You, QL (通讯作者)，Zhuhai Fudan Innovat Res Inst, Innovat Ctr Ocean & Atmosphere Syst, Zhuhai 518057, Peoples R China.
发表日期	2022
ISSN	1748-9326
卷号	17 期号:4
英文摘要	In recent decades, the Barents Sea has warmed more than twice as fast as the rest of the Arctic in winter, but the exact causes behind this amplified warming remain unclear. In this study, we quantify the wintertime Barents Sea warming (BSW, for near-surface air temperature) with an average linear trend of 1.74 degrees C decade(-1) and an interdecadal change around 2003 based on a surface energy budget analysis using the ERA5 reanalysis dataset from 1979-2019. Our analysis suggests that the interdecadal change in the wintertime near-surface air temperature is dominated by enhanced clear-sky downward longwave radiation (CDLW) associated with increased total column water vapor. Furthermore, it is found that a mode of atmospheric variability over the North Atlantic region known as the Barents oscillation (BO) strongly contributed to the BSW with a stepwise jump in 2003. Since 2003, the BO turned into a strengthened and positive phase, characteristic of anomalous high pressure over the North Atlantic and South of the Barents Sea, which promoted two branches of heat and moisture transport from southern Greenland along the Norwegian Sea and from the Eurasian continent to the Barents Sea. This enhanced the water vapor convergence over the Barents Sea, resulting in BSW through enhanced CDLW. Our results highlight the atmospheric circulation related to the BO as an emerging driver of the wintertime BSW through enhanced meridional atmospheric heat and moisture transport over the North Atlantic Ocean.
关键词	ARCTIC AMPLIFICATION URAL BLOCKING ICE VARIABILITY BUDGET IMPACT
英文关键词	Barents Sea warming; Barents oscillation; clear-sky downward longwave radiation; moisture transport
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000778866600001
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254819
作者单位	[Cai, Ziyi; You, Qinglong; Zhang, Ruonan] Fudan Univ, Inst Atmospher Sci, Dept Atmospher & Ocean Sci, Shanghai 200438, Peoples R China; [You, Qinglong] Zhuhai Fudan Innovat Res Inst, Innovat Ctr Ocean & Atmosphere Syst, Zhuhai 518057, Peoples R China; [Chen, Hans W.] Lund Univ, Dept Phys Geog & Ecosyst Sci, Lund, Sweden; [Chen, Deliang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; [Chen, Jinlei; Kang, Shichang] Atmospher & Environm Res Inc, Lexington, MA 02173 USA; [Cohen, Judah] MIT, Dept Civil & Environm Engn, Cambridge, MA USA; [Cohen, Judah] CMA FDU Joint Lab Marine Meteorol, Shanghai 200438, Peoples R China
推荐引用方式 GB/T 7714	Cai, Ziyi,You, Qinglong,Chen, Hans W.,et al. Amplified wintertime Barents Sea warming linked to intensified Barents oscillation[J]. 中国科学院西北生态环境资源研究院,2022,17(4).
APA	Cai, Ziyi.,You, Qinglong.,Chen, Hans W..,Zhang, Ruonan.,Chen, Deliang.,...&Cohen, Judah.(2022).Amplified wintertime Barents Sea warming linked to intensified Barents oscillation.ENVIRONMENTAL RESEARCH LETTERS,17(4).
MLA	Cai, Ziyi,et al."Amplified wintertime Barents Sea warming linked to intensified Barents oscillation".ENVIRONMENTAL RESEARCH LETTERS 17.4(2022).