Variability of the Deep Western Boundary Current in the Northern Philippine Sea

doi:10.1175/JPO-D-23-0025.1

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

	Variability of the Deep Western Boundary Current in the Northern Philippine Sea
	Xu, Qinbo 3; Zhou, Chun 1,4,5; Zhang, Linlin 1,2,3; Wang, Fan 1,2,3; Zhao, Wei 1,4,5; Hu, Dunxin 1,2,3
刊名	JOURNAL OF PHYSICAL OCEANOGRAPHY
	2023-08-01
卷号	53 期号:8 页码:2029-2041
关键词	Abyssal circulation Boundary currents Ocean models Oceanic variability
ISSN号	0022-3670
DOI	10.1175/JPO-D-23-0025.1
通讯作者	Zhang, Linlin(zhanglinlin@qdio.ac.cn)
英文摘要	The deep western boundary current (DWBC) was studied based on a full-depth mooring east of Luzon Island in the Northern Philippine Sea deep basin during the period from January 2018 to May 2020. On average, the DWBC in the Philippine Sea flows southward with a velocity of approximately 1.18 cm s21 at a depth of 3050 m. Significant intraseasonal and seasonal variations of the DWBC are identified. The intraseasonal variations have multiple spectral peaks in the range of 30-200 days, with the most obvious peak at approximately 120 days. On the seasonal time scale, the DWBC intensifies in summer/autumn and weakens in winter/spring, corresponding well with the seasonal variation of the ocean bottom pressure (OBP) from the Gravity Recovery and Climate Experiment. Both intraseasonal and seasonal varia-tions have no significant correlation with the temporal variations in the upper and middle layers but have a certain correla-tion with transport through the Yap-Mariana Junction (YMJ). A set of experiments based on an inverted-reduced-gravity model and the OBP data reveal that the temporal variations originating from the YMJ could propagate counterclockwise along the boundary of the deep basin to the western boundary of the deep Philippine Sea, dominating the temporal varia-tions of DWBC.
资助项目	National Natural Science Foundation of China[XDB42010105] ; Chinese Academy of Sciences[2023M733531] ; China Post-doctoral Science Foundation[42249909] ; NSFC Shiptime Sharing Projects[42049909] ; NSFC Shiptime Sharing Projects[LSKJ202201702] ; Project of Science and Technology Innovation of Laoshan Laboratory[tsqn202103128] ; TS Scholar Program ; Youth Innovation Promotion Association (CAS) ; [42122041]
WOS关键词	PACIFIC-OCEAN ; ABYSSAL CIRCULATION ; ROSSBY WAVES ; INTERANNUAL VARIABILITY ; SEASONAL VARIABILITY ; POTENTIAL VORTICITY ; DRIVEN CIRCULATION ; ZONAL CURRENTS ; TOPOGRAPHY ; PATTERNS
WOS研究方向	Oceanography
语种	英语
出版者	AMER METEOROLOGICAL SOC
WOS记录号	WOS:001055124400001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/182888]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Zhang, Linlin
作者单位	1.Lao Shan Lab, Qingdao, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 4.Ocean Univ China, Sanya Oceanog Inst, Frontier Sci Ctr Deep Ocean Multispheres & Earth S, Qingdao 266100, Sanya, Peoples R China 5.Ocean Univ China, SanyaOceanog Inst, Phys Oceanog Lab, Qingdao, Sanya, Peoples R China
推荐引用方式 GB/T 7714	Xu, Qinbo,Zhou, Chun,Zhang, Linlin,et al. Variability of the Deep Western Boundary Current in the Northern Philippine Sea[J]. JOURNAL OF PHYSICAL OCEANOGRAPHY,2023,53(8):2029-2041.
APA	Xu, Qinbo,Zhou, Chun,Zhang, Linlin,Wang, Fan,Zhao, Wei,&Hu, Dunxin.(2023).Variability of the Deep Western Boundary Current in the Northern Philippine Sea.JOURNAL OF PHYSICAL OCEANOGRAPHY,53(8),2029-2041.
MLA	Xu, Qinbo,et al."Variability of the Deep Western Boundary Current in the Northern Philippine Sea".JOURNAL OF PHYSICAL OCEANOGRAPHY 53.8(2023):2029-2041.