A risk assessment of coastal inundation resulting from different factors: a case study of Taiwan

  • 陳 品潔

Student thesis: Master's Thesis


The Pacific island countries are particularly vulnerable to the effects of global warming that include more frequent and intense natural disasters Seawater inundation one of the most serious disasters could damage human property and life such as inundation of coastal low-lying area saltwater intrusion intense floods due to increasingly frequent extreme events and loss of wetland Regional sea level rise storm surge extreme high tide and vertical land motions could result in episodic or permanent coastal inundation so assessing potential flooding areas due to above mentioned factors is a critical task for coastal management In this study a simulation of static flooding scenario in Taiwan at the end of this century was conducted by using Taiwan DEM regional sea level changes reconstructed by tide-gauge and altimetry data vertical land deformation derived from leveling and GPS data and ocean tides from models In addition extreme sea level scenario which typically result from a high water on a spring tide and a storm surge was also evaluated by the joint probability method using tide gauge records In order to avoid overestimation of inundation areas a region-based image segmentation method was employed in the estimated future topographic data to generate the flood risk map The risk assessment of flooding areas is potentially useful for coastal ocean and land management to develop appropriate adaptation policy for preventing disasters resulting from global climate change
Date of Award2019
Original languageEnglish
SupervisorChung-Yen Kuo (Supervisor)

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