The problem of classifying a complex normal time series is considered via maximizing the Bhattacharyya distance. Results are analogous to those in the real case considered in Chaudhuri et al. (1991a,b).

Rainfall is an important factor to trigger the slope failure such as landslides and debris flows. First, the relationship between rainfall duration with the initiation of debris flow and rainfall intensity was mainly studied by the series tests in a box model. Then, the rainfall induced...