Vol. 78, No. 2, Ser. No. 379 July 2025
Contents
Paper
3‐dimensional flow simulation for driftwood trapping
Dawei SHEN, Takayuki AOKI, Joji SHIMA and Seiya WATANABE 3
Technical Paper
Roll waves in debris flow observed by 2D―LiDAR on Arimura River in Sakurajima Volcano
Tsuyoshi IKESHIMA, Takeshi SHIMIZU, Daisuke KAGEYAMA and Motoki ITOH 15
Research Note
Simple modeling of sediment production caused by ice needles on bare slope
Yuma NAKAZAWA, Taijiro FUKUYAMA and Daizo TSUTSUMI 25
Technical Notes
Extraction and disclosure of estimated area of mudslide scars using high‐frequency, medium‐resolution
optical satellite data
Hiromi AKITA 33
Experimental study on the method of post joints for pile‐type debris‐flow
and driftwood protection facilities
Ryodai URAKAWA, Taichi ISHII, Yuki SEINO, Yoichi NISHITA, Michiaki YAMAMOTO and Joji SHIMA 39