DEVELOPMENT OF INUNDATION FLOW ANALYSIS MODEL CONSIDERING LANDSIDE WATER, -STUDY IN OGAKI CITY-

Abstract

To identify and announce flood hazards appropriately, an accurate flood inundation simulation method is essential. Especially in urban areas, landside water inundation is a pressing problem and must be considered properly in analyses. This paper presents the development of an inundation flow analysis model considering the effects of landside water. The analysis is done using GIS, which is a quite effective tool to utilize the analyzed results in emergency management activities.

The model was studied for the historical flood in Ogaki city in 1976. It became clear that the drainage systems are quite influential to the movement of flood water in flat plains as Ogaki. A simple method to model drainage channels was introduced and the applicability was verified.