首页|A case study of continental shelf waves in the northwestern South China Sea induced by winter storms in 2021

A case study of continental shelf waves in the northwestern South China Sea induced by winter storms in 2021

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  • 万方数据
  • 维普
This study aims to investigate characteristics of continental shelf wave(CSW)on the northwestern continental shelf of the South China Sea(SCS)induced by winter storms in 2021.Mooring and cruise observations,tidal gauge data at stations Hong Kong,Zhapo and Qinglan and sea surface wind data from January 1 to February 28,2021 are used to examine the relationship between along-shelf wind and sea level fluctuation.Two events of CSWs driven by the along-shelf sea surface wind are detected from wavelet spectra of tidal gauge data.The signals are triply peaked at periods of 56 h,94 h and 180 h,propagating along the coast with phase speed ranging from 6.9 m/s to 18.9 m/s.The dispersion relation shows their property of the Kelvin mode of CSW.We develop a simple method to estimate amplitude of sea surface fluctuation by along-shelf wind.The results are comparable with the observation data,suggesting it is effective.The mode 2 CSWs fits very well with the mooring current velocity data.The results from rare current help to understand wave-current interaction in the northwestern SCS.

continental shelf wavesEkman transportKelvin modewavelet analysisnorthwestern South China Sea

Junyi Li、Chen Zhou、Min Li、Quanan Zheng、Mingming Li、Lingling Xie

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Laboratory of Coastal Ocean Variation and Disaster Prediction,College of Ocean and Meteorology,Guangdong Ocean University,Zhanjiang 524088,China

Key Laboratory of Climate,Resources and Environments in Continent Shelf Sea and Deep Ocean,Department of Education of Guangdong Province,Zhanjiang 524088,China

Key Laboratory of Space Ocean Remote Sensing and Application,Ministry of Natural Resources,Beijing 100081,China

Department of Atmospheric and Oceanic Science,University of Maryland,College Park,Maryland 20742,USA

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National Key R&D Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaInnovation Team Plan for Universities in Guangdong ProvinceFirstclass Discipline Plan of Guangdong ProvinceFirstclass Discipline Plan of Guangdong ProvinceProgram for Scientific Research Startup Funds of Guangdong Ocean UniversityOpen Fund Project of Key Laboratory of Marine Environmental Information Technology(2019)Ministry of Natural Resources

2022YFC31048054227601941706025419762002019KCXTF021080503032101231420003060302032106

2024

10.1007/s13131-023-2150-5

海洋学报(英文版)
中国海洋学会

海洋学报(英文版)

CSTPCD
影响因子：0.323
ISSN：0253-505X
年,卷(期)：2024.43(1)
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