气候变化领域集成服务门户(CCPortal): Upwelling of Atlantic Water in Barrow Canyon, Chukchi Sea

CCPortal

DOI	10.1029/2021JC017839
	Upwelling of Atlantic Water in Barrow Canyon, Chukchi Sea
	Li, Shutong; Lin, Peigen; Dou, Tingfeng; Xiao, Cunde; Itoh, Motoyo; Kikuchi, Takashi; Qin, Dahe
通讯作者	Dou, TF (通讯作者)，Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China.
发表日期	2022
ISSN	2169-9275
EISSN	2169-9291
卷号	127 期号:3
英文摘要	Using long-term moorings data together with wind and sea ice measurements, we document the characteristics and variations of upwelling in Barrow Canyon and investigate the upwelled Atlantic Water (AW) on the Chukchi Sea shelf and how it impacts the ice cover. Driven by strong northeasterly winds, upwelling occurs more often in the cold months, and the occurrence tends to increase interannually since 2001. Over the 12-year mooring record at the mouth of Barrow Canyon, roughly 10% of the upwelling events can drive AW onto the Chukchi Sea shelf. Both AW and non-AW upwelling events have more occurrence and stronger strength in the cold months, but do not present a significant interannual trend. These variations are associated with the northeasterly winds. Comparing to the non-AW upwelling, the AW upwelling is generally characterized by more vertical displacement of the AW layer at the mouth of Barrow Canyon, and stronger up-canyon volume and heat transport. In the ice-covered period, these two types of upwelling have different consequences for forming polynyas on the shelf. Under similar wind forcing, the ice reduction appears confined in the coastal region in the non-AW upwelling events, while during AW upwelling events, the sea ice declines dramatically in the shelf interior with 15% more ice loss. It elucidates that the heat carried by the upwelled AW plays a considerable role in modulating the ice cover in the shelf interior.
关键词	BEAUFORT SEA PACIFIC VARIABILITY CIRCULATION DYNAMICS INFLOW TRENDS
英文关键词	upwelling; Atlantic Water; Sea Ice; Barrow Canyon; Chukchi Sea
语种	英语
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000776507900027
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
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/254879
作者单位	[Li, Shutong; Qin, Dahe] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou, Peoples R China; [Li, Shutong; Dou, Tingfeng; Qin, Dahe] Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China; [Li, Shutong] Chengdu Univ Informat Technol, Sch Atmospher Sci, Chengdu, Peoples R China; [Lin, Peigen] Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA; [Xiao, Cunde] Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China; [Itoh, Motoyo; Kikuchi, Takashi] Japan Agcy Marine Earth Sci & Technol, Inst Arctic Climate & Environm Res, Yokosuka, Kanagawa, Japan
推荐引用方式 GB/T 7714	Li, Shutong,Lin, Peigen,Dou, Tingfeng,et al. Upwelling of Atlantic Water in Barrow Canyon, Chukchi Sea[J]. 中国科学院西北生态环境资源研究院,2022,127(3).
APA	Li, Shutong.,Lin, Peigen.,Dou, Tingfeng.,Xiao, Cunde.,Itoh, Motoyo.,...&Qin, Dahe.(2022).Upwelling of Atlantic Water in Barrow Canyon, Chukchi Sea.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,127(3).
MLA	Li, Shutong,et al."Upwelling of Atlantic Water in Barrow Canyon, Chukchi Sea".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 127.3(2022).