A stochastic hydro-geomorphological model for shallow landsliding due to rainstorm

Auteur :
IIDA, T.

Description :
A prediction model of shallow landsliding is proposed. It considers not only the determininstic aspects containing slope stability, saturated throughflow and a soil (regolith) depth development, but also the stochastic aspects of intensity and duration of rainfall. It turns out that the probability of saturated throughflow, which is the direct trigger mechanism to shallow landsliding, can be expressed by a log-normal distribution. The short term probability of landsliding is defined as the excess probability that the depth of saturated throughflow surpasses the critical value.


Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 1999, vol. 34, n°. 3-4, p. 293-313, Collation : Illustration, Références bibliographiques : 39 ref.

Date :
1999

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena