2025 Volume 20 Issue 2 Pages 302-312
This paper reports on disaster response support using geospatial information in Oita prefecture, Japan, in 2023 and 2024 and discusses the role of geospatial information and geography in disaster response support. In the 2023 disaster, one person was missing due to a landslide caused by heavy rainfall. In that situation, we visualized the distribution of the amount of sediment using high-resolution topographic data and proposed search locations. In the 2024 disaster, we created a provisional inundation depth map using images posted on SNS and aerial drone images of inundation damage caused by river flooding due to heavy rainfall. The disaster response support reported in this paper was based on a basic concept for those involved in geography, and the synthesis of geographical knowledge with expertise from other disciplines will lead to more rapid, safer disaster responses.
