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

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Shallow ocean response to tropical cyclones observed on the continental shelf of the northwestern South China Sea
	Yang, Bing1,2,3 ; Hou, Yijun 1,2; Hu, Po1,2 ; Liu, Ze 1,2; Liu, Yahao 1,2
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
	2015-05-01
卷号	120 期号:5 页码:3817-3836
关键词	shallow ocean oceanic response tropical cyclone near-inertial oscillation South China Sea
英文摘要	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.
收录类别	SCI
语种	英语
WOS记录号	WOS:000356628100036
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/33092]
专题	海洋研究所_海洋环流与波动重点实验室
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.