タイPhuket島のポケットビーチにおける海岸微地形と津波災害脆弱性

概要

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The purpose of this paper is to investigate the damage caused by the Indian Ocean Tsunami of December 2004 on 3 pocket beaches on the west coast of the Thai island of Phuket. We analyzed the micro-landform series of the coastal area and investigated both the height of inundation and the area of flooding in relation to the local landforms. We produced a landform classification map from our analysis of micro-landform series. Each of the 3 beaches has a two-tier terrace. The coastal plain is characterized by some distinct geomorphologic elements: coastal beach ridges, interridge swales, and back marshes. Almost all the areas inundated were alluvial coastal plains covered by shallow marine deposits. Run-up of the Tsunami to inland areas was greatly enhanced by a river channel, but was mitigated in other areas by the presence of beach ridges and terraces.
日本自然災害学会の論文
2007-05-31