Observation of the abyssal western boundary current in the Philippine Sea

doi:10.1007/s00343-014-3339-4

IOCAS-IR > 海洋环流与波动重点实验室

	Observation of the abyssal western boundary current in the Philippine Sea
	Zhai Fangguo 1,2; Wang Qingye 2; Hu Dunxin 2; Guo Xiaogang 1; Zhai, FG (reprint author), State Ocean Adm, Inst Oceanog 3, Xiamen 361005, Peoples R China.
	2014-09-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
卷号	32 期号:5 页码:1188-1197
文章类型	Article
摘要	Mooring observations were conducted from July 16, 2011 to March 30, 2012 east of Mindanao, Philippines (127A degrees 2.8'E, 8A degrees 0.3'N) to observe the abyssal current at about 5 600 m deep and 500 m above the ocean bottom. Several features were revealed: 1) the observed abyssal current was highly variable with standard deviations of 57.3 mm/s and 34.0 mm/s, larger than the mean values of -31.9 and 16.6 mm/s for the zonal and meridional components, respectively; 2) low-frequency current longer than 6 days exhibited strong seasonal variation, flowing southeastward (mean flow direction of 119.0A degrees clockwise from north) before about October 1, 2011 and northwestward (mean flow direction of 60.5A degrees counter-clockwise from north) thereafter; 3) the high-frequency flow bands were dominated by tidal currents O-1, K-1, M-2, and S-2, and near-inertial currents, whose frequencies were higher than the local inertial frequency. The two diurnal tidal constituents were much stronger than the two semidiurnal ones. This study provides for the first time an observational insight into the abyssal western boundary current east of Mindanao based on long-term observations at one site. It is meaningful for further research into the deep and abyssal circulation over the whole Philippine Sea and the 3D structure of the western boundary current system in this region. More observational and high-resolution model studies are needed to examine the spatial structure and temporal variation of the abyssal current over a much larger space and longer period, their relation to the upper-layer circulation, and the underlying dynamics.
关键词	Abyssal Current Philippine Sea Mooring Observation
学科领域	Marine & Freshwater Biology ; Oceanography
DOI	10.1007/s00343-014-3339-4
收录类别	SCI
语种	英语
WOS记录号	WOS:000340879900024
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/337002/23953
专题	海洋环流与波动重点实验室
通讯作者	Zhai, FG (reprint author), State Ocean Adm, Inst Oceanog 3, Xiamen 361005, Peoples R China.
作者单位	1.State Ocean Adm, Inst Oceanog 3, Xiamen 361005, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
第一作者单位	海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Zhai Fangguo,Wang Qingye,Hu Dunxin,et al. Observation of the abyssal western boundary current in the Philippine Sea[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2014,32(5):1188-1197.
APA	Zhai Fangguo,Wang Qingye,Hu Dunxin,Guo Xiaogang,&Zhai, FG .(2014).Observation of the abyssal western boundary current in the Philippine Sea.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,32(5),1188-1197.
MLA	Zhai Fangguo,et al."Observation of the abyssal western boundary current in the Philippine Sea".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 32.5(2014):1188-1197.

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