Interannually varying salinity effects on ENSO in the tropical pacific: a diagnostic analysis from Argo

doi:10.1007/s10236-015-0829-7

IOCAS-IR > 海洋环流与波动重点实验室

	Interannually varying salinity effects on ENSO in the tropical pacific: a diagnostic analysis from Argo
	Zheng, Fei 1; Zhang, Rong-Hua2
	2015-05-01
发表期刊	OCEAN DYNAMICS
卷号	65 期号:5 页码:691-705
文章类型	Article
摘要	In this paper, three-dimensional temperature and salinity fields from Argo profiles are used to diagnose the interannual variations of some related upper oceanic fields in the tropical Pacific, with a focus on interannually varying salinity effects on the El Nio-Southern Oscillation (ENSO) events. It is clearly demonstrated that the salinity field plays a significantly large role in modulating the density and mixed layer (ML) over the western-central tropical Pacific. In particular, the contribution of interannually varying salinity to the interannual variations in density, ML, and stratification is surprisingly larger than that of interannually varying temperature. Over the entire region west of the dateline, the salinity effects are not limited to the surface but are clearly seen below the ML as represented in density and stratification fields. Furthermore, the mechanism for how the anomalous salinity field is modulating the ENSO cycle is investigated and explained through the El Nio (2009-2010) and La Nia (2010-2011) cases. Evidently, salinity field is shown to exert a significant influence on interannual variability as it directly affects the vertical mixing and entrainment at the base of the ML, the processes important to sea surface temperature (SST) in the equatorial regions.
关键词	Salinity Effect Enso Argo Western-central Tropical Pacific
DOI	10.1007/s10236-015-0829-7
收录类别	SCI
语种	英语
WOS记录号	WOS:000352902600005
引用统计	被引频次：36[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/337002/25470
专题	海洋环流与波动重点实验室
作者单位	1.Chinese Acad Sci, Inst Atmospher Phys, Int Ctr Climate & Environm Sci, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Fei,Zhang, Rong-Hua. Interannually varying salinity effects on ENSO in the tropical pacific: a diagnostic analysis from Argo[J]. OCEAN DYNAMICS,2015,65(5):691-705.
APA	Zheng, Fei,&Zhang, Rong-Hua.(2015).Interannually varying salinity effects on ENSO in the tropical pacific: a diagnostic analysis from Argo.OCEAN DYNAMICS,65(5),691-705.
MLA	Zheng, Fei,et al."Interannually varying salinity effects on ENSO in the tropical pacific: a diagnostic analysis from Argo".OCEAN DYNAMICS 65.5(2015):691-705.

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