海嘯危險度地圖－以新北市金山與萬里區為例

The Hazard Map Induced by Tsunami-the Case Study in Jinshan and Wanli

林永峻(Yong-Jun Lin) ； 張向寬(Hsiang-Kuan Chang) ； 馬國宸(Kuo-Chen Ma) ； 賴進松(Jihn-Sung Lai) ； 張倉榮(Tsang-Jung Chang) ； 吳祚任(Tso-Ren Wu) ； 鄧慰先(Wei-Hsien Teng) ； 譚義績(Yih-Chi Tan)

《農業工程學報》 60卷3期 (2014/09) Pp. 42-54

https://doi.org/10.29974/JTAE.201409_60(3).0003

摘要

2004年南亞海嘯及2011年3月11日日本海嘯事件造成的傷亡及各類損失慘重引發世界關注，而台灣北海岸在1867年也曾發過一次大海嘯。有鑑於此，本研究以假設之外海地震情境，以新北市金山與萬里地區作為研究對象，採用美國康乃爾大學海嘯模式-COMCOT模式，計算外海地震引發之海嘯高度與速度；再將COMCOT模式計算至台灣北海岸之結果設為FLO-2D二維淹水模式之邊界條件，進行二維淹水模擬，以釐訂海嘯之溢淹影響範圍，並分析海嘯進入陸地之最大淹水深度、最大水流速度及最大水位上升速率，用以產出海嘯危險度地圖，檢視可能致災之熱點，供未來我國海嘯防救災工作之參考，期能減少或降低對社會所造成的衝擊與生命財產損失。

關鍵字

海嘯 ； FLO-2D二維淹水模擬 ； 危險度地圖

並列摘要

The casualties and damages brought by the South Asia Tsunami in 2004 and the East Japan Tsunami in 2011 have been noted by the whole world. A great tsunami had stroke the northern coast of Taiwan in 1867. The study area is focused on Jinshan District and Wanli District, New Taipei City. The assumed earthquake scenario is used for Cornell University tsunami model (COMCOT model) which simulates the wave height and wave speed of the tsunami triggered by the earthquake. The wave heights of the northern coast of Taiwan are then used as boundary conditions for FLO-2D overland simulation model. With this model, the maximum flood depth, the maximum velocity of the tsunami wave and the maximum water level rise rate are gotten and used for production of tsunami hazard map. The hot spots of assumed scenario can be read from this map and used to take suitable measures to reduce the social impact, the loss of life, and properties.

並列關鍵字

Tsunami ； FLO-2D 2D flood simulation ； Hazard map