Observed near-inertial kinetic energy in the Philippine Sea

doi:10.1016/j.rsma.2022.102492

IOCAS-IR > 海洋环流与波动重点实验室

	Observed near-inertial kinetic energy in the Philippine Sea
	Zheng, Tongtong 1,2,3; Yu, Fei 1,2,3,4,5; Ren, Qiang1,3,4 ; Nan, Feng 1,3,4,5; Wang, Jianfeng 1,3,4; Liu, Yansong 1,3,4; Chen, Zifei1,2,3 ; Tang, Ying 1,3
	2022-09-01
发表期刊	REGIONAL STUDIES IN MARINE SCIENCE
ISSN	2352-4855
卷号	55 页码:10
通讯作者	Yu, Fei([email protected])
摘要	Using 32 months of observational data from two acoustic Doppler current profiler (ADCP) moorings deployed at 18 degrees N, 125 degrees E and 18 degrees N, 126 degrees E, this study investigated the statistical characteristics of the near-inertial kinetic energy (NIKE) in the Philippine Sea. During the whole observational period, the ratio of the typhoon-induced NIKE to the total NIKE was only approximately 1/3, while processes other than typhoons contributed approximately 2/3 of the total NIKE. The research depth was divided into four layers to explore the relative importance of NIKE, and NIKE was found to contribute the highest proportion of total kinetic energy in the 400 similar to 600 m layer, not the 50 similar to 200 m layer. Four typical strong NIKE cases were found in months without any typhoon records, and the time-averaged NIKE at the core depth of these cases was much higher than that of the non-typhoon period. The vertical group velocity (Cgz) and generation mechanism of these events were examined. The NIOs basically propagated in the layer where they were generated with small C-gz values (between 0 and 5 m . d(-1)) and dissipated rapidly (within 10 days). Correlation analysis suggested that low-frequency flow vertical shear transferred energy into the near-inertial frequency band, leading to the spontaneous formation of NIKE. The ratio of NIKE generated by low-frequency flow vertical shear to the total NIKE in the nontyphoon period is 14.1%. In the presence of an anticyclonic eddy, wind-generated NIOs were captured at the edge and accumulated at the bottom of the eddy. The highest NIKE among these cases was caused by both low-frequency vertical shear and the eddy. (c) 2022 Published by Elsevier B.V.
关键词	Near-inertial oscillations Typhoon Anticyclonic eddy Philippine Sea
DOI	10.1016/j.rsma.2022.102492
收录类别	SCI
语种	英语
资助项目	Global Climate Changes and Air-sea Interaction Program[GASI-02-PAC-ST-Wwin]; Global Climate Changes and Air-sea Interaction Program[GASI-02-PAC-ST-Wsum]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Ecology ; Marine & Freshwater Biology
WOS记录号	WOS:000883775500003
出版者	ELSEVIER
引用统计	被引频次：1[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/337002/180381
专题	海洋环流与波动重点实验室
通讯作者	Yu, Fei
作者单位	1.Chinese Acad Sci, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, CAS Key Lab Ocean Circulat & Waves, Qingdao 266071, Shandong, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China 5.Pilot Natl Lab Marine Sci & Technol Qingdao, Marine Dynam Proc & Climate Funct Lab, Qingdao 266237, Shandong, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Zheng, Tongtong,Yu, Fei,Ren, Qiang,et al. Observed near-inertial kinetic energy in the Philippine Sea[J]. REGIONAL STUDIES IN MARINE SCIENCE,2022,55:10.
APA	Zheng, Tongtong.,Yu, Fei.,Ren, Qiang.,Nan, Feng.,Wang, Jianfeng.,...&Tang, Ying.(2022).Observed near-inertial kinetic energy in the Philippine Sea.REGIONAL STUDIES IN MARINE SCIENCE,55,10.
MLA	Zheng, Tongtong,et al."Observed near-inertial kinetic energy in the Philippine Sea".REGIONAL STUDIES IN MARINE SCIENCE 55(2022):10.