Spatial-temporal variability of thermohaline intrusions in the northwestern tropical Pacific Ocean

doi:10.1007/s11434-012-5359-9

IOCAS-IR > 海洋环流与波动重点实验室

	Spatial-temporal variability of thermohaline intrusions in the northwestern tropical Pacific Ocean
	Li YuanLong; Wang Fan; Tang XiaoHui; Wang, F
	2013-03-01
发表期刊	CHINESE SCIENCE BULLETIN
ISSN	1001-6538
卷号	58 期号:9 页码:1038-1043
文章类型	Article
摘要	Using repeated hydrographic measurements at 137A degrees E, spatial-temporal variability of thermohaline intrusions in the northwestern tropical Pacific are investigated. Intrusions can be found in the main thermocline throughout the section, with their strength decreasing rapidly poleward. The strongest intrusions exist at the North Equatorial Countercurrent (NECC) where North/South Pacific thermocline water converges. These intrusions also exhibit temporal variations in strength which are closely associated with the meridional displacement of the NECC. Intrusion strength peaks in boreal winter when the NECC reaches its northernmost position of the year. At interannual time scale, intrusions tend to be weak (strong) during El Nio (La Nia) episodes. Variations in intrusion strength also lead to prominent fluctuation of lateral diffusivity K (L) and cross-front temperature flux F (theta) . F (theta) exhibits significant year-to-year changes which are well correlated with ENSO index, suggesting a possible role of intrusions in the low-latitude Pacific climate variability.; Using repeated hydrographic measurements at 137A degrees E, spatial-temporal variability of thermohaline intrusions in the northwestern tropical Pacific are investigated. Intrusions can be found in the main thermocline throughout the section, with their strength decreasing rapidly poleward. The strongest intrusions exist at the North Equatorial Countercurrent (NECC) where North/South Pacific thermocline water converges. These intrusions also exhibit temporal variations in strength which are closely associated with the meridional displacement of the NECC. Intrusion strength peaks in boreal winter when the NECC reaches its northernmost position of the year. At interannual time scale, intrusions tend to be weak (strong) during El Nio (La Nia) episodes. Variations in intrusion strength also lead to prominent fluctuation of lateral diffusivity K (L) and cross-front temperature flux F (theta) . F (theta) exhibits significant year-to-year changes which are well correlated with ENSO index, suggesting a possible role of intrusions in the low-latitude Pacific climate variability.
关键词	Thermohaline Intrusions Northwestern Tropical Pacific Water Mass Enso Mixing
学科领域	Science & Technology - Other Topics
DOI	10.1007/s11434-012-5359-9
URL	查看原文
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000316219500012
WOS关键词	WATER MASS-DISTRIBUTION ; WESTERN NORTH PACIFIC ; INERTIAL INSTABILITY ; EQUATORIAL PACIFIC ; CIRCULATION ; COAST
WOS标题词	Science & Technology
引用统计	被引频次：2[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/337002/16436
专题	海洋环流与波动重点实验室
通讯作者	Wang, F
作者单位	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	Li YuanLong,Wang Fan,Tang XiaoHui,et al. Spatial-temporal variability of thermohaline intrusions in the northwestern tropical Pacific Ocean[J]. CHINESE SCIENCE BULLETIN,2013,58(9):1038-1043.
APA	Li YuanLong,Wang Fan,Tang XiaoHui,&Wang, F.(2013).Spatial-temporal variability of thermohaline intrusions in the northwestern tropical Pacific Ocean.CHINESE SCIENCE BULLETIN,58(9),1038-1043.
MLA	Li YuanLong,et al."Spatial-temporal variability of thermohaline intrusions in the northwestern tropical Pacific Ocean".CHINESE SCIENCE BULLETIN 58.9(2013):1038-1043.

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