2022 年 10 巻 1 号 p. 567-575
It is important to quickly identify the actual conditions of flood damage that frequently occur over a wide area and simultaneously provide appropriate rescue, disaster support, and early emergency restoration. This report demonstrates the results during torrential rains that occurred in Kyushu, Japan in July 2020, using satellite observation data, which is one of the methods to assess the damage and is expected to be used to simultaneously identify disasters over a wide area. This report describes the current situation and issues of assessing the actual damage using satellites by performing a reproduction analysis of the past flooding events. In addition, this paper also discusses the results of verifying the use of the wide-area imaging mode, which is considered to be a promising solution to the current problems identified, and the results of the verification and confirmation of the effectiveness of using different bands and different orbits to identify the flooded areas.
