Abstract

Tsunami Vulnerability Mapping with ArcGIS
Track: Disaster Management and Emergency Response
Authors: Yang-Won Lee

Indonesia is a country suffering from frequent earthquakes and tsunamis because there are a number of epicenters under the Indian Ocean. In this paper, we describe a GIS-based multi-criteria analysis of tsunami vulnerability for the Jembrana Regency in Bali, Indonesia. We used multiple geospatial variables such as topographic elevation, topographic relation to tsunami direction, coastal proximity, and coastal shape. While previous research analyzed structural characteristics of buildings, we dealt with regional environmental characteristics for creating a continuous map of tsunami vulnerability in a 30-m grid. Also, we borrowed experts' knowledge and employed AHP method to build a weighting scheme for the geospatial variables. A land-use map was overlaid on the vulnerability map so that we can distinguish vulnerable areas relating to land-use type. Identification of tsunami-vulnerable areas can be of help to mitigate future natural disasters and reduce human and environmental damages.

Yang-Won Lee
Pukyong National University
599-1 Daeyeon, Nam-gu
Busan 608737
Korea, South
Phone: +82-51-629-6660
E-mail: modconfi@gmail.com