A FVCOM-based unstructured grid wave, current, sediment transport model, I. Model description and validation

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• 作者：Lunyu Wu (1) (2)
  Changsheng Chen (3) (4)
  Peifang Guo (1)
  Maochong Shi (1)
  Jianhua Qi (3)
  Jianzhong Ge (4)
  
• 关键词：FVCOM ; coupling ; radiation stress ; wave ; current ; sediment ; related bottom boundary layer ; morphology
• 刊名：Journal of Ocean University of China
• 出版年：2011
• 出版时间：March 2011
• 年：2011
• 卷：10
• 期：1
• 页码：1-8
• 全文大小：581KB
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• 作者单位：Lunyu Wu (1) (2)
  Changsheng Chen (3) (4)
  Peifang Guo (1)
  Maochong Shi (1)
  Jianhua Qi (3)
  Jianzhong Ge (4)
  
  1. Physical Oceanography Laboratory, Ocean University of China, Qingdao, 266100, P. R. China
  2. First Institute of Oceanography, State Oceanic Administration, Qingdao, 266061, P. R. China
  3. School for Marine Science and Technology, University of Massachusetts-Dartmouth, New Bedford, Massachusetts, USA
  4. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200062, P. R. China
  
• ISSN：1993-5021

文摘

An effort was made to couple FVCOM (a three-dimensional (3D), unstructured grid, Finite Volume Coastal Ocean Model) and FVCOM-SWAVE (an unstructured grid, finite-volume surface wave model) for the study of nearshore ocean processes such as tides, circulation, storm surge, waves, sediment transport, and morphological evolution. The coupling between FVCOM and FVCOM-SWAVE was achieved through incorporating 3D radiation stress, wave-current-sediment-related bottom boundary layer, sea surface stress parameterizations, and morphology process. FVCOM also includes a 3D sediment transport module. With accurate fitting of irregular coastlines, the model provides a unique tool to study sediment dynamics in coastal ocean, estuaries, and wetlands where local geometries are characterized by inlets, islands, and intertidal marsh zones. The model was validated by two standard benchmark tests: 1) spectral waves approaching a mild sloping beach and 2) morphological changes of seabed in an idealized tidal inlet. In Test 1, model results were compared with both analytical solutions and laboratory experiments. A further comparison was also made with the structured grid Regional Ocean Model System (ROMS), which provides an insight into the performance of the two models with the same open boundary forcing.