關鍵字查詢 | 類別:會議論文 | | 關鍵字:Modeling of low-frequency wave motions on an atoll island during typhoon events

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1 107/2 水環系 蘇仕峯 副教授 會議論文 發佈 Modeling of low-frequency wave motions on an atoll island during typhoon events , [107-2] :Modeling of low-frequency wave motions on an atoll island during typhoon events會議論文Modeling of low-frequency wave motions on an atoll island during typhoon eventsShih-Feng SuGeophysical Research Abstracts 21Low-lying coral reef islands in the South China Sea are often subjected to coastal overwash and flooding during typhoon events. Low-frequency infragravity waves (0.004 – 0.04 Hz) and very low frequency motions (0.001 – 0.004 Hz) have found to be dominant on reefs in high tides and storm conditions. However, typhoon-induced low frequency waves on reef islands are not fully understand. In the present study, a Boussinesq wave model is applied to investigate nearshore wave characteristics around Dongsha Island, the largest atoll island in the South China Sea. Model simulations with high-resolution grids and an extensive spatial coverage allow to examine detailed wave hydrodynamics. Model result shows that wave transformation on the reef flat is greatly influenced by reef bathymetry. Wav
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