The attractor dimension and predictive time scope are evaluated according to evolution of near points on the phase space orbit versus time at the initial time in view of the nonlinear system attractor concept.

Lyapunov index and time scale of predictability in phase space;

Analysis of length of predictable time of chaotic time series;

This paper introduces and analyzes the application of the least square method and Kalman filter in time prediction.

Following a brief review of the research course and a further definitio n and discussion of some concepts of time prediction of landslide,the paper poin ts out problems in the present time prediction of landslides and advances fundam ental ideas and technical courses of GMD model for landslide prediction based on the author s years of research.

ased on the introduction to the geological characteristics and classification of accumulational ladslide,the anthors present the main effect factors of slope stability,discuss the relationberwwen the stability analysis and the time forecast of landslide.

A downscaling forecast model based on the back propagation(BP) neural network is built by use of th.