Flood Damage Assessment in Building Scale Caused by the Coastal Inundation Height at Haeundae Beach, Busan

Damages of coastal areas due to natural disasters such as storms and floods are expected to occur along with rise in sea level owing to climate change. To reduce the flood damage, it is important to identify the expected inundation areas and estimate its loss. Therefore, this study evaluates the assessment of the flood damage in a building scale of Busan around the Haeundae beach in various scenarios. The scenarios vary with the inundation height from the approximate highest high water level announced by the Korea Hydrographic and Oceanographic Agency. The geographic information system (GIS) is established around the Haeundae beach area for the flood damage assessment in a building scale. The loss estimation is used by the multi-dimensional flood damage analysis (MD-FDA), suggested by the Ministry of Construction and Transportation to provide the flood damage assessment based on the building scale results. The flood damage of the Haeundae beach areas is then analyzed with flood areas, building damages, and economic losses caused by the inundation heights then the results are analyzed and visualized using the GIS. The analyzed data can be utilized in the field of flood damage mitigation and the policy of disaster prevention.