Seasonal variability of eddy kinetic energy in the Banda Sea revealed by an ocean model: An energy budget perspective

doi:10.1016/j.dsr2.2023.105320

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	Seasonal variability of eddy kinetic energy in the Banda Sea revealed by an ocean model: An energy budget perspective
	Hao, Zhanjiu 1,6,7; Xu, Zhenhua 1,4,6,7; Feng, Ming 2,5; Zhang, Peiwen 6,7; You, Jia 1,6; Yin, Baoshu 1,3,6,7
刊名	DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
	2023-10-01
卷号	211 页码:16
关键词	Mesoscale eddy Banda Sea Seasonal variability Monsoon Indonesian Throughflow
ISSN号	0967-0645
DOI	10.1016/j.dsr2.2023.105320
通讯作者	Xu, Zhenhua(xuzhenhua@qdio.ac.cn) ; Feng, Ming(ming.feng@csiro.au)
英文摘要	Seasonal eddy kinetic energy (EKE) variability in the Banda Sea during 1993-2014 is studied from an energy budget perspective, based on the outputs of Ocean Forecasting Australian Model version 3. High EKE is confined within the upper 300 m of the western Banda Sea with the largest intensity exceeding 3 x 103 J/m2 in the northwest monsoon (NWM) season. In this strong EKE region during NWM, eddies derive almost two thirds of their kinetic energy from the direct wind power input (WP), with additional contributions from the barotropic (BT) and baroclinic instability (BC) of the background flow. Both WP and BT modulate the EKE seasonality and drive the peak energy during NWM, while BC strengthens in the southeast monsoon (SEM) season because of the intensified baroclinicity of the upper circulation. The westerly wind bursts associated with the Madden-Julian Oscillation (MJO), together with steep topography, facilitate more cyclonic eddy generation events in the western Banda Sea during NWM. During SEM, EKE becomes relatively moderate across the Banda Sea but with a regional peak to the southwest of the Buru Island, which can be attributed to island wake effect. Over the Banda Sea, WP, BT and BC contribute 74% (42%), 14% (19%) and 12% (39%) of total energy to EKE during NWM (SEM), respectively. The majority of EKE generated is diverged horizontally by pressure work and dissipated by turbulent viscosity, with dissipation depleting the most. This study highlights the importance of both monsoon and MJO wind forcing in generating EKE variability along the pathway of the Indonesian Throughflow.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Laoshan Laboratory[XDB42000000] ; Laoshan Laboratory[92058202] ; Laoshan Laboratory[LSKJ202202502] ; CAS Key Deployment Project of Center for Ocean Mega-Research of Science[COMS2020Q07] ; CAS- CSIRO Jointly Project[133244KYSB20190031]
WOS关键词	FRESH-WATER DISCHARGE ; INDONESIAN SEAS ; INDIAN-OCEAN ; PACIFIC ; THROUGHFLOW ; CIRCULATION ; THERMOCLINE ; AUSTRALIA ; TRANSPORT ; PATHWAYS
WOS研究方向	Oceanography
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:001106608000001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/184013]
专题	海洋研究所_海洋生态与环境科学重点实验室
通讯作者	Xu, Zhenhua; Feng, Ming
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.CSIRO Environm, Indian Ocean Marine Res Ctr, Crawley, WA 6009, Australia 3.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 5.CSIRO Environm, Indian Ocean Marine Res Ctr, Crawley, WA, Australia 6.Chinese Acad Sci, CAS Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao 266071, Peoples R China 7.Pilot Natl Lab Marine Sci & Technol, Qingdao 266237, Peoples R China
推荐引用方式 GB/T 7714	Hao, Zhanjiu,Xu, Zhenhua,Feng, Ming,et al. Seasonal variability of eddy kinetic energy in the Banda Sea revealed by an ocean model: An energy budget perspective[J]. DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,2023,211:16.
APA	Hao, Zhanjiu,Xu, Zhenhua,Feng, Ming,Zhang, Peiwen,You, Jia,&Yin, Baoshu.(2023).Seasonal variability of eddy kinetic energy in the Banda Sea revealed by an ocean model: An energy budget perspective.DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,211,16.
MLA	Hao, Zhanjiu,et al."Seasonal variability of eddy kinetic energy in the Banda Sea revealed by an ocean model: An energy budget perspective".DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY 211(2023):16.