Seasonal Variability of Eddy Kinetic Energy along the Kuroshio Current

doi:10.1175/JPO-D-22-0155.1

IOCAS-IR > 海洋环流与波动重点实验室

	Seasonal Variability of Eddy Kinetic Energy along the Kuroshio Current
	Yan, Xiaomei 1,2,3,4; Kang, Dujuan 5; Curchitser, Enrique N.5; Liu, Xiaohui 2; Pang, Chongguang 1,3,4; Zhang, Linlin 1,3,4
	2023-07-01
发表期刊	JOURNAL OF PHYSICAL OCEANOGRAPHY
ISSN	0022-3670
卷号	53 期号:7 页码:1731-1752
通讯作者	Yan, Xiaomei(yanxiaomei@qdio.ac.cn)
摘要	The seasonal variability of the eddy kinetic energy (EKE) along the Kuroshio Current (KC) is examined using outputs from an eddy-resolving (1/10 & DEG;) ocean model. Using a theoretical framework for climatological monthly mean EKE, the mechanisms governing the seasonal cycle of upper-ocean EKE are investigated. East of Taiwan, the EKE shows two comparable peaks in spring and summer in the surface layer; only the spring one is evident in the subsurface layer. The seasonality is determined by mixed barotropic (BTI) and baroclinic (BCI) instabilities. Northeast of Taiwan, the EKE is also elevated during spring-summer but with a sole peak in summer, which is dominated by the meridional EKE advection by the KC. In the middle part of the KC in the East China Sea, the mesoscale (.150 km) EKE (EKEMS) is relatively strong during spring-summer, whereas the submesoscale (50-150 km) EKE (EKESM) is significantly enhanced during winter-spring. The seasonal cycles of EKEMS and EKESM are primarily controlled by the external forcing and BCI, respectively. In particular, the higher EKEMS level in summer is mainly due to the increased wind work. West of the Tokara Strait, the EKE exhibits a prominent peak in winter and has its minimum in summer, which is regulated by the BCI. As the submesoscale signals are partially resolved by the model, further studies with higher-resolution simulations and observations are needed for a better understanding of the EKESM seasonality and its contribution to the seasonally modulating EKEMS along the KC.
关键词	North Pacific Ocean Eddies Mesoscale processes Seasonal variability
DOI	10.1175/JPO-D-22-0155.1
收录类别	SCI
语种	英语
资助项目	Shandong Provincial Natural Science Foundation[ZR2021MD092] ; open fund of State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, MNR[QNHX2306] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42010105] ; National Natural Science Foundation of China[42122041] ; Laoshan Science and Technology Innovation project[LSKJ202201700]
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:001029832500002
出版者	AMER METEOROLOGICAL SOC
WOS关键词	ATMOSPHERIC LOCAL ENERGETICS ; STATISTICAL CHARACTERISTICS ; SUBTROPICAL COUNTERCURRENT ; ISLAND WAKES ; EAST ; MESOSCALE ; TAIWAN ; SUBMESOSCALE ; TRANSPORT ; EDDIES
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/337002/182509
专题	海洋环流与波动重点实验室
通讯作者	Yan, Xiaomei
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.MNR, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 5.Rutgers State Univ, Dept Environm Sci, New Brunswick, NJ USA
第一作者单位	海洋环流与波动重点实验室
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	Yan, Xiaomei,Kang, Dujuan,Curchitser, Enrique N.,et al. Seasonal Variability of Eddy Kinetic Energy along the Kuroshio Current[J]. JOURNAL OF PHYSICAL OCEANOGRAPHY,2023,53(7):1731-1752.
APA	Yan, Xiaomei,Kang, Dujuan,Curchitser, Enrique N.,Liu, Xiaohui,Pang, Chongguang,&Zhang, Linlin.(2023).Seasonal Variability of Eddy Kinetic Energy along the Kuroshio Current.JOURNAL OF PHYSICAL OCEANOGRAPHY,53(7),1731-1752.
MLA	Yan, Xiaomei,et al."Seasonal Variability of Eddy Kinetic Energy along the Kuroshio Current".JOURNAL OF PHYSICAL OCEANOGRAPHY 53.7(2023):1731-1752.