Near-inertial oscillations in seasonal highly stratified shallow water

doi:10.1016/j.ecss.2021.107445

IOCAS-IR > 海洋环流与波动重点实验室

	Near-inertial oscillations in seasonal highly stratified shallow water
	Song, Dehai 1,2; Gao, Guandong 2,3,4; Xia, Yingying 5; Ren, Zhaopeng 6; Liu, Junliang 1,2,7; Bao, Xianwen 1,2,7; Yin, Baoshu 2,3,4,8
	2021-09-05
发表期刊	ESTUARINE COASTAL AND SHELF SCIENCE
ISSN	0272-7714
卷号	258 页码:14
通讯作者	Gao, Guandong(guandonggao@qdio.ac.cn)
摘要	The Yellow Sea (YS) is highly stratified seasonally due to the presence of the bottom cold water (BCW), also called the YS Cold Water Mass (YSCWM). Intermittent measurements from June 2009 to August 2014 show that the near-inertial oscillation (NIO) can be excited by synoptic weather systems during the presence of the YSCWM between March and October. The magnitude of the NIOs depends on both the wind work and the water stratification. Thus, extreme wind events, such as tropical cyclones, destratify the shallow water and are unfavorable for NIOs. In general, the NIO induced by individual synoptic system is weak, but the event occurred from 6 to 22 July 2009 excited by four extratropical cyclones can result in a near-inertial current speed of 0.3 ms(-1). The average wind work during this event was 1.32 x 10(-3) Wm(-2), and estimates of 42.67 MW energy transferred from wind into the YS during this event. However, only 6.1%similar to 8.4% of the wind work can be transited into the BCW interior. Budget analysis indicates most energy is dissipated to mix the highly stratified water rather than damped by the bottom friction. The NIO frequency blueshift in the vertical also indicates higher energy dissipation between different layers. The decline of the YSCWM weakens the vertical stratification and thus the growth of NIOs. The calculation of wind work depends on the computation of wind drag coefficient and the conversion from wind measured height to 10 m above surface. In general, there is about 10% difference on wind work by using different methods.
关键词	Near-inertial oscillation Yellow sea cold water mass Shallow water Wind work Extratropical cyclone
DOI	10.1016/j.ecss.2021.107445
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41876088] ; National Natural Science Foundation of China[42006004] ; National Natural Science Foundation of China[U1706215] ; National Natural Science Foundation of China[U1806227] ; Shandong Provincial Natural Science Foundation, China[ZR2019MD010] ; Shandong Provincial Natural Science Foundation, China[ZR2019BD016]
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Marine & Freshwater Biology ; Oceanography
WOS记录号	WOS:000704391100001
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/176637
专题	海洋环流与波动重点实验室
通讯作者	Gao, Guandong
作者单位	1.Ocean Univ China, Minist Educ, Key Lab Phys Oceanog, Qingdao 266000, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266000, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266000, Peoples R China 4.Chinese Acad Sci, Ctr Mega Sci, Qingdao 266071, Peoples R China 5.Natl Marine Data & Informat Serv, Tianjin 300171, Peoples R China 6.Meteorol Bur Qingdao, Qingdao 266003, Peoples R China 7.Ocean Univ China, Coll Ocean & Atmospher Sci, Qingdao 266100, Peoples R China 8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
通讯作者单位	海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Song, Dehai,Gao, Guandong,Xia, Yingying,et al. Near-inertial oscillations in seasonal highly stratified shallow water[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2021,258:14.
APA	Song, Dehai.,Gao, Guandong.,Xia, Yingying.,Ren, Zhaopeng.,Liu, Junliang.,...&Yin, Baoshu.(2021).Near-inertial oscillations in seasonal highly stratified shallow water.ESTUARINE COASTAL AND SHELF SCIENCE,258,14.
MLA	Song, Dehai,et al."Near-inertial oscillations in seasonal highly stratified shallow water".ESTUARINE COASTAL AND SHELF SCIENCE 258(2021):14.

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