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－　　－10Sadayoshi AOYAMAProfessor, Department of Civil Engineering Sadayoshi Aoyama is a professor at the Department of Civil Engineering, College of Industrial Technology, Nihon University. He received his Ph.D. in Engineering from Nihon University in 1992. He worked at CTI Engineering Co., Ltd. from 1995 to 2010. He is a licensed surveyor in Japan. He is a member of the Japan Society of Civil Engineering (JSCE), the Remote Sensing Society of Japan (RSSJ), the Japanese Society of Coastal Forest (JSCF), and the Japanese Society for Engineering Education (JSEE). Dr. Aoyama received a JSCF Award in 2014. His main research activities are on disaster damage assessment and coastal forest growth assessment using satellite data. He has been working with JAXA on ood damage assessment using ALOS and ALOS-2 data since 2011.Research Achievements1)Tunami Damage in the Arahama Coastal Forest interpreted from ALOS Data, Journal of the Japanese Society of Coastal Forest, Vol.11, No.2, pp.53-58, 2012.2)Extraction of Flooded Area by SAR Data and Flood Analysis, Journal of Japan Society of Civil Engineers, Ser.F3 Civil Engineering Informatics, Vol.73, No.2, I_181-I_187, 2017.3)Changes in Urban Indices After the Great Fire Disaster Recovery in Itoigawa, Niigata, Transactions of the Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol.18, lssue 5, pp.216-221, 2020.Extraction of flooded area using backscatter coefficient and flood analysis：Flooded points：Non-Flooded points：Flooded area using flood analysis：Flooded area created by GSI