Seasonal variations in the barrier layer in the South China Sea: characteristics, mechanisms and impact of warming
Zeng, LL; Wang, DX; dxwang@scsio.ac.cn
2017
发表期刊CLIMATE DYNAMICS
卷号48期号:5-6页码:1911-1930
摘要A new observational dataset, the South China Sea Physical Oceanographic Dataset 2014, is examined to investigate the seasonal characteristics, formation mechanisms, and warming effects of the barrier layer (BL) in the South China Sea (SCS). Statistical analysis reveals that the BL is thicker and occurs more frequently during summer and early autumn, while in winter it often coexists with temperature inversions. The formation mechanisms are discussed from the perspective of the controlling regime and the net turbulent energy required for BL evolution. In the initial stage (March-May), the BL is absent due to weak mixing, scarce rainfall and surface warming. In the formation and maintenance stage (June-September), the BL grows in summer and persists into the transition season. The BLs can be classified into three regimes: the flux regime (in the Luzon Strait), the combined regime (in the eastern basin) and the wind regime (southeast of Vietnam). In the attenuation stage (October-February), associated with the winter monsoon, the BL mainly occurs in the combined regime (along the path of western boundary current) and the flux regime (in the southeast corner). The characteristics and generation mechanisms of the temperature inversions near the south Chinese coast, east of Vietnam, and in the Gulf of Thailand are also discussed. Our analysis further demonstrates that the BL has a significant warming effect on upper ocean temperature and heat content in the SCS.
部门归属[Zeng, Lili; Wang, Dongxiao] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China
关键词Barrier Layer South China Sea Seasonal Variability Mixed Layer Salinity Budget Temperature Inversion Upper Ocean Heat Content
资助项目LTO
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/16436
专题热带海洋环境国家重点实验室(LTO)
通讯作者dxwang@scsio.ac.cn
推荐引用方式
GB/T 7714
Zeng, LL,Wang, DX,dxwang@scsio.ac.cn. Seasonal variations in the barrier layer in the South China Sea: characteristics, mechanisms and impact of warming[J]. CLIMATE DYNAMICS,2017,48(5-6):1911-1930.
APA Zeng, LL,Wang, DX,&dxwang@scsio.ac.cn.(2017).Seasonal variations in the barrier layer in the South China Sea: characteristics, mechanisms and impact of warming.CLIMATE DYNAMICS,48(5-6),1911-1930.
MLA Zeng, LL,et al."Seasonal variations in the barrier layer in the South China Sea: characteristics, mechanisms and impact of warming".CLIMATE DYNAMICS 48.5-6(2017):1911-1930.
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