Paper Title
Assessing Coastal Vulnerability of Storm Surges in Nakhon Si Thammarat, Thailand, Using Multi-Criteria Analysis

Abstract
This research aims to assess the vulnerability of coastal areas in Nakhon Si Thammarat Province to storm surges. The study focuses on the province’s coastal zones, which have experienced significant impacts from past storm surge events. Using secondary data, six factors contributing to the Coastal Vulnerability Index (CVI) were identified: beach type, elevation, coastal structure, storm surge wave height, population density and land use. Weighting factors for the CVI were determined through Multi-Criteria Analysis (MCA), emphasizing their influence on coastal vulnerability to storm surges. The result categorizes the coastline into 4 vulnerability levels: low, moderate, high and very high. Of the total 240-kilometers coastline, 38.73 kilometers as moderate vulnerability, 193.20 kilometers as high vulnerability and 7.62 kilometers as very high vulnerability. These findings provide critical insights into the spatial distribution of vulnerability along the coastline, offering essential information to support disaster risk planning and management in coastal regions. Keywords - Multi-Criteria Analysis, Disaster Risk Management, Coastal Vulnerability Index, Storm Surges Assessment.