Decadal variations of the North Pacific Tropical Water at 137°E

论文摘要

The decadal variations of the North Pacific Tropical Water（NPTW）at 137°E in the western North Pacific Ocean are investigated based on the repeated hydrographic observations along with two global gridded ocean products.The results indicate that the maximum salinity of NPTW experiences significant quasi-decadal variations,having maxima around 1979,1987,1995,2004,and 2012,while minima around1974,1983,1991,1999,and 2008 during the period of interest.The NPTW area also shows similar quasidecadal variation,expanding/shrinking as its maximum salinity increases/decreases at the 137°E section.These variations are induced mainly by changes in the mixed layer salinity in the source region and largescale circulation in the northwestern tropical Pacific Ocean,both of which are related to the Pacific Decadal Oscillation.The underlying processes at work are further confirmed through conducting the subsurface salinity budget analysis.Besides,short-term processes are also at work through nonlinear interactions,especially after 2000.

论文目录

文章来源

类型: 期刊论文

作者: LIN Wenqiang,ZHAI Fangguo,GU Yanzhen,LI Peiliang

来源: Journal of Oceanology and Limnology 2019年05期

年度: 2019

分类: 基础科学

专业: 海洋学

单位: Physical Oceanography Laboratory, College of Oceanic and Atmospheric Sciences, Ocean University of China,Institute of Physical Oceanography and Remote Sensing, Ocean College, Zhejiang University

基金: Supported by the National Natural Science Foundation of China(Nos.41506008,41606107,41476002,41776012),ZHAI F.G.is also supported by the Shandong Provincial Natural Science Foundation(No.ZR2015DQ006),China Postdoctoral Science Foundation(No.2015M570609)

分类号: P731

页码: 1495-1509

总页数: 15

文件大小: 658K

下载量: 8

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