Shallow ocean response to tropical cyclones observed on the continental shelf of the northwestern South China Sea

doi:10.1002/2015JC010783

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	Shallow ocean response to tropical cyclones observed on the continental shelf of the northwestern South China Sea
	Yang, Bing 1,2,3; Hou, Yijun 1,2; Hu, Po 1,2; Liu, Ze 1,2; Liu, Yahao 1,2
	2015-05-01
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN	2169-9275
卷号	120 期号:5 页码:3817-3836
摘要	Based on observed temperature and velocity in 2005 in northwestern South China Sea, the shallow ocean responses to three tropical cyclones were examined. The oceanic response to Washi was similar to common observations with 2 degrees C cooling of the ocean surface and slight warming of the thermocline resulted from vertical entrainment. Moreover, the wavefield was dominated by first mode near-inertial oscillations, which were red-shifted and trapped by negative background vorticity leading to an e-folding timescale of 12 days. The repeated reflections by the surface and bottom boundaries were thought to yield the successive emergence of higher modes. The oceanic responses to Vicente appeared to be insignificant with cooling of the ocean surface by only 0.5 degrees C and near-inertial currents no larger than 0.10 m/s as a result of a deepened surface mixed layer. However, the oceanic responses to Typhoon Damrey were drastic with cooling of 4.5 degrees C near the surface and successive barotropic-like near-inertial oscillations. During the forced stage, the upper ocean heat content decreased conspicuously by 11.65% and the stratification was thoroughly destroyed by vertical mixing. In the relaxation stage, the water particle had vertical displacement of 20-30 m generated by inertial pumping. The current response to Damrey was weaker than Washi due to the deepened mixed layer and the destroyed stratification. Our results suggested that the shallow water oceanic responses to tropical cyclones varied significantly with the intensity of tropical cyclones, and was affected by local stratification and background vorticity.
文章类型	Article
关键词	Shallow Ocean Oceanic Response Tropical Cyclone Near-inertial Oscillation South China Sea
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1002/2015JC010783
关键词[WOS]	NEAR-INERTIAL MOTIONS ; SURFACE MIXED-LAYER ; ENERGY FLUX ; OSCILLATIONS ; WIND ; CURRENTS ; WAVES ; HURRICANE ; COAST ; GENERATION
收录类别	SCI
语种	英语
WOS研究方向	Oceanography
项目资助者	National Natural Science Foundation of China(U1133001 ; National High Technology Research and Development Program of China (Program 863)(2013AA09A502) ; 41030855 ; 41421005 ; U1406401)
WOS类目	Oceanography
WOS记录号	WOS:000356628100036
出版者	AMER GEOPHYSICAL UNION
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/10440
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Hou, Yijun
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China 2.Chinese Acad Sci Ocean Circulat & Waves, Key Lab, Inst Oceanol, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Yang, Bing,Hou, Yijun,Hu, Po,et al. Shallow ocean response to tropical cyclones observed on the continental shelf of the northwestern South China Sea[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2015,120(5):3817-3836.
APA	Yang, Bing,Hou, Yijun,Hu, Po,Liu, Ze,&Liu, Yahao.(2015).Shallow ocean response to tropical cyclones observed on the continental shelf of the northwestern South China Sea.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,120(5),3817-3836.
MLA	Yang, Bing,et al."Shallow ocean response to tropical cyclones observed on the continental shelf of the northwestern South China Sea".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 120.5(2015):3817-3836.