Wave characteristics and hydrodynamics at a reef island on Dongsha Atoll in the South China Sea
學年 105
學期 2
發表日期 2017-04-23
作品名稱 Wave characteristics and hydrodynamics at a reef island on Dongsha Atoll in the South China Sea
作品名稱（其他語言）
著者 Su, Shih-Feng; Chiang, Te-Yun; Lin, Yi-Hao; Chen, Jia-Lin
作品所屬單位
出版者
會議名稱 European Geosciences Union General Assembly 2017
會議地點 Vienna, Austria
摘要 An inhabited coral reef island, located at the Dongsha Atoll in the northern South China Sea, is frequently attacked by typhoon waves. Coastline has suffered severe erosion and coastal inundation during certain typhoon paths. Groins were therefore built surround the island to stabilize the shoreline. However, the engineering structures redistributed the characteristics of hydrodynamics, which resulted in the disappearance of seasonal sediment movements on the reef flat. Additionally, infragravity waves (20-200 sec) on reefs have be found to generate strong resonance during energetic wave events. To understand wave characteristics and nearshore circulations around the reef under typical waves and typhoon waves, a phase-averaged and a phase-resolving wave models validated with previous field experiments are used to simulate significant wave height, wave setup and reef circulations. The phase-resolving model is specially applied to investigate infragravity motions around the island. Model results will illustrate the spatial variations of infragravity-wave field and wave-induced nearshore circulation and can provide information for coastal management and protection.
關鍵字
語言 en_US
收錄於
會議性質 國際
校內研討會地點 無
研討會時間 20170423~20170428
通訊作者
國別 AUT
公開徵稿
出版型式
出處
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/119008 )