Paper

Geological factors of deep-seated catastrophic landslide and physical and mechanical properties of its sliding layer triggered by the heavy rainfall associated with Typhoon Talas（T 1112）in Kii Peninsula

Atsuhiko KINOSHITA, Yoshito OGAWAUCHI, Takayuki MAYUMI and Tatsuya SHIBASAKI　3

Influence of particle―size segregation in multi―granular debris flow on the fluidity

Tomoyuki IWATA, Norifumi HOTTA and Takuro SUZUKI　13

Technical Report

Rainfall conditions result in intensive deep-seated landslides : Rainfall analysis for typhoon No. 12 in 2011

Atsuhiko KINOSHITA, Shinichi KITAGAWA, Taro UCHIDA, Soichi KAIHARA, Hiroaki TAKEMOTO and Noriko TADAKUMA　24

Research Notes

Establishing a landslide dam detection methodology by interpreting artificial satellite high-resolution SAR （synthetic aperture radar）images based on a case study of sediment-related disasters caused by Typhoon Talas in the Kii Peninsula

Shin-ichiro HAYASHI, Masaki MIZUNO, Takumi SATO, Joko KAMIYAMA, Atsushi OKAMOTO, Tomohiro YOSHIKAWA, Toshiaki UDONO, Hiroshi YOKOTA, Atsuo NODA and Kazuo YOSHIKAWA　　32

On grain size distribution of artificial spawning grounds and survival of eggs of white-spotted charr（Salvelinus leucomaenis）

Goichiro TAKAHASHI, Yukinori TOKUDA and Tomoyuki NAKAMURA　　40

Technical Notes

A study on detection of volcanic cloud of the SAKURAJIMA volcano by X-band MP radar observation

Toshiyuki SAKAI, Tatsuya MOMOTANI, Takuji TERATANI, Hirofumi TSUJIMOTO, Masaru KUNITOMO, Eiichi TAKAHASHI, Kazuhiro SHIMOKUBO and Syuichi ASO　　45

Deep-seated landslide survey using a rotor-type micro-UAV

Atsuhiko KINOSHITA, Toru SHIMADA, Takuzo KASAHARA, Eimei HAYASHI, Issei NAGUSA, Yoshito OGAWAUCHI and Hirokazu MURAKI　　51