Response of Near-Inertial Shear to Wind Stress Curl and Sea Level

doi:10.1038/s41598-019-56822-z

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Response of Near-Inertial Shear to Wind Stress Curl and Sea Level
	Gao, Jing 1,3; Wang, Jianing 2,3; Wang, Fan 1,2,3
刊名	SCIENTIFIC REPORTS
	2019-12-31
卷号	9 页码:11
ISSN号	2045-2322
DOI	10.1038/s41598-019-56822-z
英文摘要	Near-inertial waves (NIWs) contain a pronounced portion of shear energy in the internal wave field and is of great importance to deep ocean mixing. However, accurate simulation of NIWs remains a challenge. Here we analyzed 3-year long mooring observation of velocity profiles over 80-800 m to study the responses of near-inertial downward shear to varying wind stress curls and sea level anomalies (SLAs). It is demonstrated that moderate (even weak) cyclone makes more contributions to enhanced shear below the pycnocline than very strong cyclone. Because very strong curl can stall the downward propagation of large shear. The large positive and negative SLAs cause the accumulation of large shear in the lower and upper parts of the pycnocline through inducing downwelling and upwelling motions, respectively. Time variation of near-inertial shear was strongly influenced by cases of large curls and interannual variation of SLA, and thus did not follow the seasonal variation of wind stress. Our analyses suggest that matched fields of wind stress curl and SLA, and well representing the ocean response to moderate cyclone are needed in simulating the role of NIWs on mixing.
资助项目	National Natural Science Foundation of China[41730534] ; National Program on Global Change and Air-Sea Interaction[GASI-IPOVAI-01-01] ; National Natural Science Foundation of China[41776022] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22000000] ; China Ocean Mineral Resources Research and Development Association Program[DY135-E2-3-02] ; Scientific and Technological Innovation Project by Qingdao National Laboratory for Marine Science and Technology[2016ASKJ12] ; National Natural Science Foundation of China[91958204] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SYS034]
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000508985300038
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/164475]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Wang, Jianing; Wang, Fan
作者单位	1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Gao, Jing,Wang, Jianing,Wang, Fan. Response of Near-Inertial Shear to Wind Stress Curl and Sea Level[J]. SCIENTIFIC REPORTS,2019,9:11.
APA	Gao, Jing,Wang, Jianing,&Wang, Fan.(2019).Response of Near-Inertial Shear to Wind Stress Curl and Sea Level.SCIENTIFIC REPORTS,9,11.
MLA	Gao, Jing,et al."Response of Near-Inertial Shear to Wind Stress Curl and Sea Level".SCIENTIFIC REPORTS 9(2019):11.