Study on the relationship between rainfall, topography and landslide volume in the recent debris flow disasters in Hiroshima, JapanTomoaki Eguchi, Hiroya Umemura, Mizuho Arai, Atsushi Okamoto, Yusuke Sakai, Taro Uchida, Shinichiro Hayashi and Makoto OhyamaE3S Web of Conf., 415 (2023) 04004DOI: https://doi.org/10.1051/e3sconf/202341504004