碩士 / 國立成功大學 / 測量及空間資訊學系 / 105 / 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.
| Identifer | oai:union.ndltd.org:TW/105NCKU5367022 |
| Date | January 2019 |
| Creators | Pin-ChiehChen, 陳品潔 |
| Contributors | Chung-Yen Kuo, 郭重言 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | en_US |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 82 |
Page generated in 0.0021 seconds