Improving storm surge simulations by considering wave-steepness-dependent drag coefficient in the northern East China Sea

doi:10.1016/j.ocemod.2023.102283

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

	Improving storm surge simulations by considering wave-steepness-dependent drag coefficient in the northern East China Sea
	Li, Zhao 1,2,4,5; Li, Shuiqing 1,2,4,5; Hu, Po 1,2,4,5; Feng, Xingru 1,2,4,5; Mo, Dongxue 1,2,4; Li, Jian 3
刊名	OCEAN MODELLING
	2023-12-01
卷号	186 页码:13
关键词	Storm surge Wave drag Wave setup Wave steepness Topography
ISSN号	1463-5003
DOI	10.1016/j.ocemod.2023.102283
通讯作者	Li, Shuiqing(lishuiqing@qdio.ac.cn)
英文摘要	The northern East China Sea (NECS) is a semienclosed basin that is frequently attacked by tropical cyclones (TCs), and the accompanied storm surges are huge threats to coastal regions. In this study, numerical simulations of storm surges in the NECS are performed in the impacts of wave-induced surface drag (wave drag) and wave radiation stress (wave setup). The wave drag is estimated using a wave-steepness-dependent roughness parameterization. Comparisons with the observations reveal that the numerical simulations can be significantly improved by considering enhanced wave drag. The wave drag accounts for 15-22 % increase in the peak storm surge in the southern coastal regions of the Bohai Sea, which is much more significant than the wave setup (accounting for less than 10 % increase). Analysis with the wind and wave conditions shows that the significant impact of wave drag is attributed to the shoaling of young fetch-limited waves, which is accumulative toward the shoreline. The impact of different roughness parameterizations, such as wave-age-dependent scaling, is discussed. The results highlight the necessity of considering the influence of wave-enhanced surface drag on surge level in fetch-limited shoaling waters.
资助项目	National Natural Science Foundation of China[41976010] ; National Natural Science Foundation of China[42076214] ; National Natural Science Foundation of China[42006027] ; Open Fund Project of Key Laboratory of Marine Environmental Information Technology and Oceanographic Data Center, Institute of Oceanography, Chinese Academy of Sciences (IOCAS)
WOS关键词	SURFACE WIND STRESS ; HURRICANE WAVES ; TIDE-SURGE ; MODEL ; ROUGHNESS ; INUNDATION ; SPRAY ; COAST ; SWAN ; FLUX
WOS研究方向	Meteorology & Atmospheric Sciences ; Oceanography
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:001108275300001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/184022]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Li, Shuiqing
作者单位	1.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Ocean & Climate Dynam, Qingdao, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 3.North China Sea Marine Forecasting Ctr State Ocean, Qingdao, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 5.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Zhao,Li, Shuiqing,Hu, Po,et al. Improving storm surge simulations by considering wave-steepness-dependent drag coefficient in the northern East China Sea[J]. OCEAN MODELLING,2023,186:13.
APA	Li, Zhao,Li, Shuiqing,Hu, Po,Feng, Xingru,Mo, Dongxue,&Li, Jian.(2023).Improving storm surge simulations by considering wave-steepness-dependent drag coefficient in the northern East China Sea.OCEAN MODELLING,186,13.
MLA	Li, Zhao,et al."Improving storm surge simulations by considering wave-steepness-dependent drag coefficient in the northern East China Sea".OCEAN MODELLING 186(2023):13.