气候变化领域集成服务门户(CCPortal): Tidal Effects on the Surface Water Cooling Northeast of Hainan Island, South China Sea

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DOI	10.1029/2019JC016016
	Tidal Effects on the Surface Water Cooling Northeast of Hainan Island, South China Sea
	Li Y.; Curchitser E.N.; Wang J.; Peng S.
发表日期	2020
ISSN	21699275
卷号	125 期号:10
英文摘要	Using a 3-D high-resolution ocean model, this paper explores the mechanisms that cause surface and subsurface water cooling northeast of Hainan Island during summer. Results show that two cooling centers in the regions east of Wenchang city and east of the Qiongzhou Strait occur when tides are included in the model. The cooling is primarily caused by large-scale changes in the circulation in the northwestern South China Sea (SCS) through anomalous horizontal pressure gradients caused by inhomogeneous tidal mixing between the near-shore and off-shore regions. East of Wenchang city, the offshore tidal currents induce upwelling that brings the near-bottom cold water to the subsurface. For the region east of the Qiongzhou Strait, the tidally induced westward anomalous currents suppress the warm water transport from Qiongzhou Strait, resulting in a compensating intrusion of cold water from surrounding regions. In addition to the large-scale circulation changes, the local tidal mixing also contributes to the subsurface water cooling east of the Qiongzhou Strait by mixing near-bottom cold water with subsurface waters. Interannually, the cooling weakens or intensifies during different (cold or warm) phases of the El Niño–Southern Oscillation (ENSO) events. This is attributed to variability in surface forcings and large-scale circulation associated with different phases of ENSO leading to changes in stratification, which changes the tidally induced horizontal pressure gradient in the northwestern SCS. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	high-resolution model; northeast of Hainan Island; South China Sea; tide; upwelling
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186607
作者单位	State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China; Key Laboratory of Science and Technology on Operational Oceanography, Chinese Academy of Sciences, Guangzhou, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China; Institution of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China; Department of Environmental Sciences, Rutgers University, New Brunswick, NJ, United States; NOAA Great Lakes Environmental Research Laboratory, Ann Arbor, MI, United States
推荐引用方式 GB/T 7714	Li Y.,Curchitser E.N.,Wang J.,et al. Tidal Effects on the Surface Water Cooling Northeast of Hainan Island, South China Sea[J],2020,125(10).
APA	Li Y.,Curchitser E.N.,Wang J.,&Peng S..(2020).Tidal Effects on the Surface Water Cooling Northeast of Hainan Island, South China Sea.Journal of Geophysical Research: Oceans,125(10).
MLA	Li Y.,et al."Tidal Effects on the Surface Water Cooling Northeast of Hainan Island, South China Sea".Journal of Geophysical Research: Oceans 125.10(2020).