Numerical study of tidal dynamics in the South China Sea with adjoint method

doi:10.1016/j.ocemod.2015.05.010

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋环境与数值模拟研究室

	Numerical study of tidal dynamics in the South China Sea with adjoint method
	Gao, Xiumin 1,2; Wei, Zexun 1,2; Lv, Xianqing 3; Wang, Yonggang 1,2; Fang, Guohong 1,2
刊名	OCEAN MODELLING
	2015-08
卷号	92 页码:101-114
关键词	Tides in the South China Sea Adjoint method Internal tide dissipation
ISSN号	1463-5003
DOI	10.1016/j.ocemod.2015.05.010
英文摘要	We adopt a parameterized internal tide dissipation term to the two-dimensional (2-D) shallow water equations, and develop the corresponding adjoint model to investigate tidal dynamics in the South China Sea (SCS). The harmonic constants derived from 63 tidal gauge stations and 24 TOPEX/Poseicion (T/P) satellite altimeter crossover points are assimilated into the adjoint model to minimize the deviations of the simulated results and observations by optimizing the bottom friction coefficient and the internal tide dissipation coefficient. Tidal constituents M-2, S-2, K-1 and O-1 are simulated simultaneously. The numerical results (assimilating only tidal gauge data) agree well with T/P data showing that the model results are reliable. The co-tidal charts of M-2, S-2, K-1 and O-1 are obtained, which reflect the characteristics of tides in the SCS. The tidal energy flux is analyzed based on numerical results. The strongest tidal energy flux appears in the Luzon Strait (LS) for both semi-diurnal and diurnal tidal constituents. The analysis of tidal energy dissipation indicates that the bottom friction dissipation occurs mainly in shallow water area, meanwhile the internal tide dissipation is mainly concentrated in the LS and the deep basin of the SCS. The tidal energetics in the LS is examined showing that the tidal energy input closely balances the tidal energy dissipation. (C) 2015 Elsevier Ltd. All rights reserved.
资助项目	Basic Research Operating Funds of the First Institute of Oceanography, State Oceanic Administration[2014G26]
WOS研究方向	Meteorology & Atmospheric Sciences ; Oceanography
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000358800800008
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/3633]
专题	业务部门_海洋环境与数值模拟研究室
作者单位	1.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Shandong, Peoples R China; 2.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Numer Modeling, Oingdao 266071, Peoples R China; 3.Ocean Univ China, Key Lab Phys Oceanog, Minist Educ, Qingdao 266100, Peoples R China
推荐引用方式 GB/T 7714	Gao, Xiumin,Wei, Zexun,Lv, Xianqing,et al. Numerical study of tidal dynamics in the South China Sea with adjoint method[J]. OCEAN MODELLING,2015,92:101-114.
APA	Gao, Xiumin,Wei, Zexun,Lv, Xianqing,Wang, Yonggang,&Fang, Guohong.(2015).Numerical study of tidal dynamics in the South China Sea with adjoint method.OCEAN MODELLING,92,101-114.
MLA	Gao, Xiumin,et al."Numerical study of tidal dynamics in the South China Sea with adjoint method".OCEAN MODELLING 92(2015):101-114.