Research Notes

Challenges facing suspended sediment observation in mountain river

Keiji TAMURA, Yasukazu KOSUGE, Taro UCHIDA, Yoko NAGATA, Ken’ichirou KOSUGI and Takahisa MIZUYAMA　3

Challenges facing suspended sediment observation in mountain river

Keiji TAMURA, Yasukazu KOSUGE, Taro UCHIDA, Yoko NAGATA, Ken’ichirou KOSUGI and Takahisa MIZUYAMA　　10

A driftwood simulator in three dimensions using particle-based method

Ryoichi OHNO　　16

Technical Notes

Case study of applicability of active drainage work from slope

Hiroaki NAKAYA, Akira GOTO, Toshihiro IMAMURA, Keiji MUKAI and Ryosuke TSUNAKI　　21

Disaster　Reports

Secondary sediment movements and secondary sediment disasters caused by rainfalls after the Kumamoto Earthquake in April 2016

Yoshiharu ISHIKAWA, Fumiaki AKAZAWA, Hirotaka UE, Hiroyuki OHNO, Nobutomo OSANAI, Masahiro KAIBORI, Tetsuya KUBOTA, Syozo KOGA, Yutaka GONDA, Toshihiko SAKASHIMA, Takashi JITOUSONO, Osamu SHIMIZU, Toshiya TAKESHI, Akira TARUKADO, Eiji TORITA, Koji NAKANO, Masato NISHI, Tomoyuki NORO, Yasuyuki HIRAKAWA, Shinya HIRAMATSU, Masaharu FUJITA Shinjiro MATSUO Takashi YAMADA　　25

Debris disasters caused by Typhoon MALOU (T1613) in Kakidairasawa on Sept. 7, 2016

Yoshiharu ISHIKAWA, Yasuhiro SYUIN, Yoshiaki KASHIWABARA, Naoki MIYATA, Ryoichi OHNO, Satoshi TOBIOKA, Makoto KAJIHARA, Makoto NUMAKUNAI　　37