气候变化领域集成服务门户(CCPortal): Observed Deep Anticyclonic Cap Over Caiwei Guyot

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DOI	10.1029/2020JC016254
	Observed Deep Anticyclonic Cap Over Caiwei Guyot
	Guo B.; Wang W.; Shu Y.; He G.; Zhang D.; Deng X.; Liang Q.; Yang Y.; Xie Q.; Wang H.; Wang J.
发表日期	2020
ISSN	21699275
卷号	125 期号:10
英文摘要	The mean circulation pattern and its mechanism over Caiwei Guyot (1,308–5,600 m) in the Northwest Pacific were studied utilizing 3 years of in situ data. A deep anticyclonic cap was found to enclose the entire guyot from its bottom up to a depth of 728 m, which is composed of a stable but highly asymmetric anticyclonic circulation at the foot and a bottom-trapped anticyclonic circulation over the summit. On the slope, the circulation is complex with a dominant anticyclonic circulation near the bottom and a weak cyclonic circulation at ∼2,200 m. The anticyclonic cap intensity over the summit is significantly modulated by the time-varying impinging flow. An intensified cold ring above the summit edge was observed at Caiwei Guyot, which differs from the cold domes observed over traditional conic seamounts. Further analysis suggests that the impinging flow is primarily responsible for the cap formation, and the M2 tide-seamount interaction plays a secondary role. The anticyclonic cap may play a role in the local geological distribution. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	anticyclonic cap; cold ring; corich crusts; deep guyot; tidal rectification
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186623
作者单位	State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China; Key Laboratory of Marine Mineral Resources, Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China; University of Chinese Academy of Sciences, Beijing, China; Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China; Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, MNR, Hangzhou, China; Institute of Deep-Sea Science and Engineering, Chinese Academy of Sciences, Sanya, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China; State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, MNR, Hangzhou, China
推荐引用方式 GB/T 7714	Guo B.,Wang W.,Shu Y.,et al. Observed Deep Anticyclonic Cap Over Caiwei Guyot[J],2020,125(10).
APA	Guo B..,Wang W..,Shu Y..,He G..,Zhang D..,...&Wang J..(2020).Observed Deep Anticyclonic Cap Over Caiwei Guyot.Journal of Geophysical Research: Oceans,125(10).
MLA	Guo B.,et al."Observed Deep Anticyclonic Cap Over Caiwei Guyot".Journal of Geophysical Research: Oceans 125.10(2020).