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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/80430

    Title: 極端風暴潮之情境分析與 海平面上升對溢淹範圍之影響
    Authors: 莊淑君;Chuang, Shu-Chun
    Contributors: 水文與海洋科學研究所
    Keywords: 風暴潮模式;海平面上升;極端風暴潮;潛勢溢淹計算;COMCOT;storm surge model;sea-level rise;extreme storm surge;potential inundation evaluation
    Date: 2019-08-22
    Issue Date: 2019-09-03 14:30:06 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 氣候變遷之全球暖化導致海平面上升,未來潛在強烈颱風生成機率與強度亦有增加之趨勢,而颱風所引起之風暴潮威脅亦將隨之改變。本研究使用COMCOT風暴潮模式 (COrnel Multi-Grid COupled Tsunami Model – Storm Surge, COMCOT-SS) 計算潛在強烈颱風於海平面上升情境所造成之風暴潮威脅,以及臺灣沿海地區之風暴潮分布與潛勢溢淹範圍。COMCOT-SS模式可計算大尺度遠洋區域,以涵蓋風暴潮傳遞完整週期,同時兼顧近岸尺度之溢淹溯上模擬,並結合TPXO全球天文潮模式作為潮汐邊界,以及可導入中央氣象局發展之TWRF 2.0氣象場與參數化理想風場。
    ;The global warming of climate change has led to issues of sea-level rising and more frequent typhoons with higher intensity than before. The impacts of this trend may enhance the hazard from storm surge and putting a growing number of people and structures at risk.
    In this study, the COMCOT-SS model (COrnel Multi-Grid COupled Tsunami Model – Storm Surge) is used to not only evaluate the threats of storm surges caused by potentially strong typhoons under the impact of climate change but also estimate the potential inundation distribution of Taiwan coastal region. The COMCOT-SS model is capable of fully covering the entire lifespan of a storm surge transmission, from the large-scale oceanic areas to nearshore inundation. It solves non-linear shallow water equations in hydrodynamics with TPXO Global Tidal Solutions as the tidal boundary driver and parametric wind model is applied in this research.
    The study is aimed at evaluating the potential inundating area when sea level rises by building scenarios of intense typhoons threatening Taiwan coastal regions under various sea-level condition, of which their path from historical records varied from different categories provided by Central Weather Bureau, Taiwan.
    The simulation results indicate that if the typhoon track passes through the eastern seas of Taiwan and didn′t make landfall, then there’s no significant inundation along the coastal region. On the other hand, the low-lying area on the western coast of Taiwan has more chance to get inundated under all sea-level conditions, yet the relationship between the increasing of inundation area and the sea-level rise is not linear. In addition, if the typhoon track hits Taiwan from east to west, the potential inundation area along the southwestern coast gradually decreases as the sea level rises.
    Appears in Collections:[水文與海洋科學研究所] 博碩士論文

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