Papers

The proposal on risk evaluation method for sediment disasters with rough sets

Takeharu SATO and Natsuki SAWA　3

Disaster map of the Taisho volcanic mudflow informing the arrival time and the level of damage after the eruption of Mt. Tokachi in 1926

Tomoyuki NANRI, Takashi YAMADA Mio KASAI and Tomomi MARUTANI　12

Technical Paper

Estimation of hydrogeological structure using airborne electromagnetic survey in the Aso western piedmont geothermal areas

Yusuke SAKAI, Katsushi KAWATO, Koichiro SADO and Yasuyuki HIRAKAWA　　20

Research Notes

Trapping analysis of steel open-type Sabo dam against debris flow by DEM representing protrusions of rock

Toshiyuki HORIGUCHI, Joji SHIMA, Tomoo MATSUBARA, Hiroshi TATEZAWA, Satoshi KATSUKI, Nobutaka ISHIKAWA and Takahisa MIZUYAMA　　30

 

Measurement of the 3 D water flow vector in the Masa-soil slope for predicting slope failure

Akira ENDO and Michiya IRASAWA　　38