LANDSLIDE DAMBREAK HAZARD ANALYSIS IN WESTLAND, NEW ZEALAND - A GIS APPROACH

摘要

A GIS methodology for the identification of 22 potential landslide dam locations for Westland, South Island, New Zealand is given. Five factors are used to identify sites: geology, elevation, slope, slope form, and slope orientation. Landslide dam geometry parameters are developed based on empirical methods. Model results compare favourably against an historical landslide dam site.