Interannual sea surface salinity variations observed in the tropical North Pacific Ocean

doi:10.1002/grl.50429

IOCAS-IR > 海洋环流与波动重点实验室

	Interannual sea surface salinity variations observed in the tropical North Pacific Ocean
	Li, Yuanlong 1,2; Wang, Fan2 ; Han, Weiqing 1; Wang, F
	2013-05-28
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
卷号	40 期号:10 页码:2194-2199
文章类型	Article
摘要	Analysis of observational data sets reveals pronounced interannual variations of sea surface salinity (SSS) in the tropical North Pacific (7 degrees N-15 degrees N) during 2000-2012. SSS anomalies with maximum magnitudes >0.2 occur in the central Pacific and translate westward at a speed of 15-20 cm s(-1). The signals are weakened during their westward movement but reinforced in the Philippine Sea. Budget analysis for the mixed layer salinity suggests that in the central Pacific, El Nino-Southern Oscillation-related atmospheric freshwater forcing and ocean advection changes are both important in generating and maintaining these large SSS anomalies. In the advection term, the most contributing component is the meridional Ekman advection induced by trade winds. These SSS anomalies are subsequently carried westward by the North Equatorial Current, which is the primary cause of SSS variations in the Philippine Sea. Freshwater forcing is also at work in the Philippine Sea, but its role is generally secondary.; Analysis of observational data sets reveals pronounced interannual variations of sea surface salinity (SSS) in the tropical North Pacific (7 degrees N-15 degrees N) during 2000-2012. SSS anomalies with maximum magnitudes >0.2 occur in the central Pacific and translate westward at a speed of 15-20 cm s(-1). The signals are weakened during their westward movement but reinforced in the Philippine Sea. Budget analysis for the mixed layer salinity suggests that in the central Pacific, El Nino-Southern Oscillation-related atmospheric freshwater forcing and ocean advection changes are both important in generating and maintaining these large SSS anomalies. In the advection term, the most contributing component is the meridional Ekman advection induced by trade winds. These SSS anomalies are subsequently carried westward by the North Equatorial Current, which is the primary cause of SSS variations in the Philippine Sea. Freshwater forcing is also at work in the Philippine Sea, but its role is generally secondary.
关键词	Sea Surface Salinity Mixed Layer Enso
学科领域	Geology
DOI	10.1002/grl.50429
URL	查看原文
收录类别	SCI
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000328840200055
WOS关键词	FRESH POOL ; EL-NINO ; VARIABILITY ; PERIOD ; LAYER ; ARGO
WOS标题词	Science & Technology ; Physical Sciences
引用统计	被引频次：18[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/337002/16415
专题	海洋环流与波动重点实验室
通讯作者	Wang, F
作者单位	1.Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Shandong, 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,Han, Weiqing,et al. Interannual sea surface salinity variations observed in the tropical North Pacific Ocean[J]. GEOPHYSICAL RESEARCH LETTERS,2013,40(10):2194-2199.
APA	Li, Yuanlong,Wang, Fan,Han, Weiqing,&Wang, F.(2013).Interannual sea surface salinity variations observed in the tropical North Pacific Ocean.GEOPHYSICAL RESEARCH LETTERS,40(10),2194-2199.
MLA	Li, Yuanlong,et al."Interannual sea surface salinity variations observed in the tropical North Pacific Ocean".GEOPHYSICAL RESEARCH LETTERS 40.10(2013):2194-2199.

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