Direct Measurements of the Luzon Undercurrent

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

	Direct Measurements of the Luzon Undercurrent
	Hu, Dunxin 1,2; Hu, Shijian 1,2,3; Wu, Lixin 4; Li, Lei 4; Zhang, Linlin 1,2; Diao, Xinyuan1,5 ; Chen, Zhaohui 4; Li, Yuanlong 1,2,3; Wang, Fan1,2 ; Yuan, Dongliang1,2
刊名	JOURNAL OF PHYSICAL OCEANOGRAPHY
	2013-07-01
卷号	43 期号:7 页码:1417-1425
关键词	Pacific Ocean Ocean circulation Eddies In situ oceanic observations Intraseasonal variability Seasonal cycle
ISSN号	0022-3670
通讯作者	Hu, DX
中文摘要	The Luzon Undercurrent (LUC) was discovered about 20 years ago by geostrophic calculation from conductivity-temperature-depth (CTD) data. But it was not directly measured until 2010. From November 2010 to July 2011, the LUC was first directly measured by acoustic Doppler current profiler (ADCP) from a subsurface mooring at 18.0 degrees N, 122.7 degrees E to the east of Luzon Island. A number of new features of the LUC were identified from the measurements of the current. Its depth covers a range from 400 m to deeper than 700 m. The observed maximum velocity of the LUC, centered at about 650 m, could exceed 27.5 cm s(-1), four times stronger than the one derived from previous geostrophic calculation with hydrographic data. According to the time series available, the seasonality of the LUC strength is in winter > summer > spring. Significant intraseasonal variability (ISV; 70-80 days) of the LUC is exposed. Evidence exists to suggest that a large portion of the intraseasonal variability in the LUC is related to the westward propagation of mesoscale eddies from the east of the mooring site.
英文摘要	The Luzon Undercurrent (LUC) was discovered about 20 years ago by geostrophic calculation from conductivity-temperature-depth (CTD) data. But it was not directly measured until 2010. From November 2010 to July 2011, the LUC was first directly measured by acoustic Doppler current profiler (ADCP) from a subsurface mooring at 18.0 degrees N, 122.7 degrees E to the east of Luzon Island. A number of new features of the LUC were identified from the measurements of the current. Its depth covers a range from 400 m to deeper than 700 m. The observed maximum velocity of the LUC, centered at about 650 m, could exceed 27.5 cm s(-1), four times stronger than the one derived from previous geostrophic calculation with hydrographic data. According to the time series available, the seasonality of the LUC strength is in winter > summer > spring. Significant intraseasonal variability (ISV; 70-80 days) of the LUC is exposed. Evidence exists to suggest that a large portion of the intraseasonal variability in the LUC is related to the westward propagation of mesoscale eddies from the east of the mooring site.
学科主题	Oceanography
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Oceanography
研究领域[WOS]	Oceanography
关键词[WOS]	NORTH EQUATORIAL CURRENT ; WATER MASS-DISTRIBUTION ; PACIFIC ; CURRENTS ; COUNTERCURRENT ; VARIABILITY ; CIRCULATION ; MINDANAO ; COAST ; EAST
收录类别	SCI
原文出处	10.1175/JPO-D-12-0165.1
语种	英语
WOS记录号	WOS:000329778000012
公开日期	2014-07-17
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/16400]
专题	海洋研究所_海洋环流与波动重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Key Lab Ocean Circulat & Wave, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Ocean Univ China, Phys Oceanog Lab, Qingdao, Peoples R China 5.Chinese Acad Sci, R&D Ctr Marine Environm Engn & Technol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Hu, Dunxin,Hu, Shijian,Wu, Lixin,et al. Direct Measurements of the Luzon Undercurrent[J]. JOURNAL OF PHYSICAL OCEANOGRAPHY,2013,43(7):1417-1425.
APA	Hu, Dunxin.,Hu, Shijian.,Wu, Lixin.,Li, Lei.,Zhang, Linlin.,...&Yuan, Dongliang.(2013).Direct Measurements of the Luzon Undercurrent.JOURNAL OF PHYSICAL OCEANOGRAPHY,43(7),1417-1425.
MLA	Hu, Dunxin,et al."Direct Measurements of the Luzon Undercurrent".JOURNAL OF PHYSICAL OCEANOGRAPHY 43.7(2013):1417-1425.