气候变化领域集成服务门户(CCPortal): Multi-decadal changes in the South China Sea mixed layer salinity

CCPortal

DOI	10.1007/s00382-021-05711-1
	Multi-decadal changes in the South China Sea mixed layer salinity
	Zeng L.; Chassignet E.P.; Xu X.; Wang D.
发表日期	2021
ISSN	0930-7575
起始页码	317
结束页码	330
英文摘要	A recently assembled South China Sea Physical Oceanographic Dataset provides the first observational evidence for mixed layer salinity changes in the South China Sea from 1960 to 2015. During this period, the mixed layer waters freshened by 0.22 psu. The mixed layer salinity variability is found to be in sync with the Pacific Decadal Oscillation; it freshened in the 1960s, started to salinify in 1974, freshened again from 1993, and then salinified once again from 2012, with linear trends of − 0.019, 0.020, and − 0.024 psu/year, respectively. A box-average salinity budget analysis shows that the surface forcing, horizontal advection, and vertical entrainment terms together can, to a large degree, explain the observed trend in mixed layer salinity. The mixed layer freshening is driven by weakened surface fresh water loss and saline water transport, while salinification is associated with enhanced surface freshwater loss and salt transport through the Luzon Strait. The long-term mixed layer salinity changes affect the stratification, inducing a thinner mixed layer and stronger barrier layer during freshening periods that favor stronger regional ocean–atmosphere interaction. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Long-term variability; Mixed layer salinity; South China Sea
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/183510
作者单位	State Key Laboratory of Tropical Oceanography (LTO), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; Center for Ocean-Atmospheric Prediction Studies, Florida State University, Tallahassee, FL 32306, United States; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China; School of Marine Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
推荐引用方式 GB/T 7714	Zeng L.,Chassignet E.P.,Xu X.,et al. Multi-decadal changes in the South China Sea mixed layer salinity[J],2021.
APA	Zeng L.,Chassignet E.P.,Xu X.,&Wang D..(2021).Multi-decadal changes in the South China Sea mixed layer salinity.Climate Dynamics.
MLA	Zeng L.,et al."Multi-decadal changes in the South China Sea mixed layer salinity".Climate Dynamics (2021).