Geo-Information Technology for Coastal Disaster Risk Reduction

Geo-information techniques have proven their usefulness for the purposes of early warning and emergency response. These techniques enable us to generate extensive geo-information to make informed decisions in response to natural disasters that lead to better protection of citizens, reduce damage to property, improve the monitoring of these disasters, and facilitate estimates of the damages and losses resulting from them. Threedimensional (3D) models make perceiving real world easy. A 3D model shows what is going to change and happen at the end of a new design. 3D visualizations of spatial objects are employed in an increasing number of applications from the areas of urban planning, city marketing, tourism, and facility management. To reach a beneficial decision, it convinces decision maker by providing sufficient argument. 3D model of urban buildings helps to future decisionmaking process for reorganizing current urban building structures. In this study discuss various methods of data source capture from satellite, aerial imagery, laser scanner and terrestrial imagery data used to create 3D model. In this paper, the 3D model of Okha coast was generated using CAD software MAP 3D. In order to do this, a Google earth image was used to generate 3D model. The satellite images overlaid on the tsunami risk map, and identified the region to be particularly at risk in study area. In our study satellite images integrated with GIS/CAD, can give information for assessment, analysis and monitoring of disaster. We expect that the results of case study presented here will supportive disaster risk reduction model. .