Implementation and comparison of the recent three-dimensional radiation stress theory and vortex-force formalism in an unstructured-grid coastal circulation model
Xia, M1; Mao, MH1,2; Niu, QR2,3
Source PublicationEstuarine, Coastal and Shelf Science
ISSN272-7714
2020-08-05
Volume240Pages:106771
Keywordave-induced circulation Wave-current interaction Numerical modeling Radiation stress Vortex-force formalism
MOST Discipline CatalogueMarine & Freshwater Biology ; Oceanography
DOI10.1016/j.ecss.2020.106771
Department海岸带环境过程实验室
AbstractGiven the importance of wave-current interaction in estuarine and coastal dynamics, it is crucial to revisit impacts of surface gravity waves on three-dimensional (3D) nearshore circulation. This work investigates wave-induced circulation in three typical coastal systems including an idealized inlet and planar and natural barred beaches, by implementing the recent 3D radiation stress (RS) theory and vortex-force (VF) formalism to an unstructured-grid Finite-Volume Community Ocean Model (FVCOM). In the idealized inlet case, 3D RS generated appreciable currents near barriers and lateral boundaries while VF forced strong flows via breaking and roller-induced accelerations in front of the inlet. Both simulations indicate vertically varying wave-induced circulation that decreases markedly. In the planar beach with obliquely incident waves, both methods successfully produced surface onshore and bottom undertow, as well as the wave breaking and roller-induced longshore currents. Nevertheless, 3D RS generated unrealistic offshore currents close to the shoreline. The coupled models were validated against observations in the natural barred beach, and results indicate that the 3D RS model agrees slightly better with the observed longshore currents while 3D VF captures the vertical shear of the onshore-offshore flows reasonably. Further investigations suggest that both methods produce the wave breaking-induced surface onshore and bottom undertow successfully, yet they are located further offshore resulting from the 3D RS-induced unrealistic offshore currents. Successful implementations of the paired wave-current theories to the unstructured model would be fundamental and beneficial to the coastal ocean modeling community
SubtypeArticle
Indexed BySCI
Language英语
WOS KeywordWAVE-CURRENT INTERACTION ; COMBINED DERIVATION ; BREAKING WAVES ; SURF ZONE ; CURRENTS ; FORMULATION ; EQUATIONS ; TRANSPORT ; DYNAMICS ; SYSTEM
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS IDWOS:000535863600017
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/25264
Collection中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
Corresponding AuthorXia, M
Affiliation1.Univ Maryland Eastern Shore, Dept Nat Sci, Princess Anne, MD 21853 USA
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 26400, Peoples R China
3.Shenzhen Univ, Coll Life Sci & Oceanog, Shenzhen 518060, Peoples R China
Recommended Citation
GB/T 7714
Xia, M,Mao, MH,Niu, QR. Implementation and comparison of the recent three-dimensional radiation stress theory and vortex-force formalism in an unstructured-grid coastal circulation model[J]. Estuarine, Coastal and Shelf Science,2020,240:106771.
APA Xia, M,Mao, MH,&Niu, QR.(2020).Implementation and comparison of the recent three-dimensional radiation stress theory and vortex-force formalism in an unstructured-grid coastal circulation model.Estuarine, Coastal and Shelf Science,240,106771.
MLA Xia, M,et al."Implementation and comparison of the recent three-dimensional radiation stress theory and vortex-force formalism in an unstructured-grid coastal circulation model".Estuarine, Coastal and Shelf Science 240(2020):106771.
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