A method for mapping the spatial distribution of RockFall computer program analyses results using ArcGIS software

Abstract

Rockfalls are a natural process of cliff and hillside erosion and can be simulated by computer programs. RocFall is a useful and well-known program which produces envelopes of kinetic energy, velocity, bounce height and fall-out distance for a selected profile. However, with this program it is difficult to record the spatial distribution of the envelopes in their exact coordinates in GIS. In this paper, a method and computer code (FallGIS) written by the authors is proposed for mapping the results obtained from RocFall in ArcGIS. As it is both user-friendly (hence quicker) and does not require any new software, it is hoped it will be a useful tool for engineering geologists, urban planners, etc.