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

doi:10.1016/j.ocemod.2023.102283

IOCAS-IR > 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 1,2,3,4; Li, Shuiqing 1,2,3,4; Hu, Po1,2,3,4 ; Feng, Xingru 1,2,3,4; Mo, Dongxue 1,2,4; Li, Jian 5
	2023-12-01
发表期刊	OCEAN MODELLING
ISSN	1463-5003
卷号	186 页码:13
通讯作者	Li, Shuiqing(lishuiqing@qdio.ac.cn)
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.
关键词	Storm surge Wave drag Wave setup Wave steepness Topography
DOI	10.1016/j.ocemod.2023.102283
收录类别	SCI
语种	英语
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研究方向	Meteorology & Atmospheric Sciences ; Oceanography
WOS类目	Meteorology & Atmospheric Sciences ; Oceanography
WOS记录号	WOS:001108275300001
出版者	ELSEVIER SCI LTD
WOS关键词	SURFACE WIND STRESS ; HURRICANE WAVES ; TIDE-SURGE ; MODEL ; ROUGHNESS ; INUNDATION ; SPRAY ; COAST ; SWAN ; FLUX
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/184023
专题	海洋环流与波动重点实验室
通讯作者	Li, Shuiqing
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Ocean & Climate Dynam, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 5.North China Sea Marine Forecasting Ctr State Ocean, Qingdao, Peoples R China
第一作者单位	海洋环流与波动重点实验室
通讯作者单位	海洋环流与波动重点实验室
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.

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