Salinification in the South China Sea Since Late 2012: A Reversal of the Freshening Since the 1990s
Zeng, LL; Chassignet, EP; Schmitt, RW; Xu, XBA; Wang, DX; dxwang@scsio.ac.cn
2018
发表期刊GEOPHYSICAL RESEARCH LETTERS
卷号45期号:6页码:2744-2751
摘要Salinification has occurred in the South China Sea from late 2012 to the present, as shown by satellite Aquarius/Soil Moisture Active Passive data and Argo float data. This salinification follows a 20year freshening trend that started in 1993. The salinification signal is strongest near the surface and extends downward under the seasonal thermocline to a depth of 150m. The salinification occurs when the phase of the Pacific Decadal Oscillation switches from negative to positive. Diagnosis of the salinity budget suggests that an increasing net surface freshwater loss and the horizontal salt advection through the Luzon Strait driven by the South China Sea throughflow contributed to this ongoing salinification. In particular, a decrease in precipitation and enhanced Luzon Strait transport dominated the current intense salinification. Of particular interest is whether this salinification will continue until it reaches the previous maximum recorded in 1992. Plain Language Summary A significant salinification is taking place in the South China Sea starting from late 2012 to the present, as seen in satellite and Argo float data. The temperature, in contrast, exhibits no significant change. The salinification is mainly associated with switches in the Pacific Decadal Oscillation from negative to positive phase from late 2012 to the present. A decrease in precipitation and enhanced Luzon Strait transport dominated the current intense salinification. After a freshening period that lasted 20years, we are particularly interested in whether the salinification will continue in the future.
部门归属[Zeng, Lili; Wang, Dongxiao] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China; [Chassignet, Eric P.; Xu, Xiaobiao] Florida State Univ, Ctr Ocean Atmospher Predict Studies, Tallahassee, FL 32306 USA; [Schmitt, Raymond W.] Woods Hole Oceanog Inst, Dept Phys Oceanog, Woods Hole, MA 02543 USA
关键词South China Sea Salinification Argo Floats Aquarius Smap Pdo
学科领域Geology
资助项目LTO
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/17087
专题热带海洋环境国家重点实验室(LTO)
通讯作者dxwang@scsio.ac.cn
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GB/T 7714
Zeng, LL,Chassignet, EP,Schmitt, RW,et al. Salinification in the South China Sea Since Late 2012: A Reversal of the Freshening Since the 1990s[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(6):2744-2751.
APA Zeng, LL,Chassignet, EP,Schmitt, RW,Xu, XBA,Wang, DX,&dxwang@scsio.ac.cn.(2018).Salinification in the South China Sea Since Late 2012: A Reversal of the Freshening Since the 1990s.GEOPHYSICAL RESEARCH LETTERS,45(6),2744-2751.
MLA Zeng, LL,et al."Salinification in the South China Sea Since Late 2012: A Reversal of the Freshening Since the 1990s".GEOPHYSICAL RESEARCH LETTERS 45.6(2018):2744-2751.
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