Coastal multi-hazard assessment along the coast of Pranburi to Sam Roi Yot district, Prachuap Khiri Khan
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Abstract
The Pranburi-Sam Roi Yot coast in Prachuap Khiri Khan province contains various geomorphic features and land use types that are vulnerable to natural disasters such as storm surges and coastal erosion. This study assesses physical damage from multi-natural hazards by classifying physical indicators following the CHW method, which offers the hazard level in the studied area. As a result, the flood (storm surge) hazard is very high throughout most of the area, whereas the erosion hazard is very high in the TSR-coastal type and high in Pl-5-type. The hazards of saltwater intrusion and gradual inundation resulted in high intensity for both TSR and Pl-5 coastal types. Lastly, the hazard of ecosystem disruption is moderate in TSR and Pl-5 coastal types. Most land use categories in the research area were very high intensity for flooding concerns. Urban and agricultural land uses. The urban and agricultural land use categories are included at a high intensity level in the region with the greatest erosion threat. The geological setting parameter was a major factor in classifying the area as elevated danger for flooding and erosion. We suggest that additional criteria be examined in future studies to address indicators related to coastal damage. Natural hazard damage assessment may produce more accurate results.
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Copyright © 2008 Department of Geology, Faculty of Science, Chulalongkorn University. Parts of an article can be photocopied or reproduced without prior written permission from the author(s), but due acknowledgments should be stated or cited accordingly.
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