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• Main Authors: Shu-Chun Chuang, 莊淑君
• Other Authors: Tso-Ren Wu
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/6c2rrv

碩士 === 國立中央大學 === 水文與海洋科學研究所 === 107 === 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.