气候变化领域集成服务门户(CCPortal): Impact of Shoaling Ocean Surface Waves on Wind Stress and Drag Coefficient in Coastal Waters: 2. Tropical Cyclones

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DOI	10.1029/2020JC016223
	Impact of Shoaling Ocean Surface Waves on Wind Stress and Drag Coefficient in Coastal Waters: 2. Tropical Cyclones
	Chen X.; Ginis I.; Hara T.
发表日期	2020
ISSN	21699275
卷号	125 期号:7
英文摘要	This study investigates the impacts of shoaling waves on the wind stress and drag coefficient (Cd) in coastal waters during tropical cyclone (TC) landfall. Numerical experiments are conducted using idealized TCs with two intensities, Category 1 and 5, and two translation speeds, 5 and 10 m/s, propagating toward and normal to the shoreline over two bottom slopes, 1:200 and 1:2000. The wave spectra are simulated using the WAVEWATCH III wave model. The unresolved high-frequency spectral tail is parameterized as a function of wind speed, and the full wave spectrum is used to calculate the wind stress and drag coefficient. Our results show that the sea state dependence of wind stress magnitude (or Cd) is significantly increased in shallow water at a given wind speed. Compared to its deep-water value, Cd is enhanced in the right (due to shoaling fetch-dependent waves) and in the left (due to shoaling opposing-wind swells) TC quadrants. However, Cd is reduced in the front/rear quadrants due to weaker wind seas. The misalignment between the wind stress and wind speed directions is enhanced in shallow water. In general, the shoaling wave effects on the wind stress and Cd are much stronger on steeper bottom slopes and in faster moving storms. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	coastal water; sea state-dependent drag coefficient; shoaling ocean waves; tropical cyclones
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/186784
作者单位	Graduate School of Oceanography, University of Rhode Island, South Kingstown, RI, United States
推荐引用方式 GB/T 7714	Chen X.,Ginis I.,Hara T.. Impact of Shoaling Ocean Surface Waves on Wind Stress and Drag Coefficient in Coastal Waters: 2. Tropical Cyclones[J],2020,125(7).
APA	Chen X.,Ginis I.,&Hara T..(2020).Impact of Shoaling Ocean Surface Waves on Wind Stress and Drag Coefficient in Coastal Waters: 2. Tropical Cyclones.Journal of Geophysical Research: Oceans,125(7).
MLA	Chen X.,et al."Impact of Shoaling Ocean Surface Waves on Wind Stress and Drag Coefficient in Coastal Waters: 2. Tropical Cyclones".Journal of Geophysical Research: Oceans 125.7(2020).