See more from this Division: General Discipline Sessions
See more from this Session: Engineering Geology II - Landslides: Characterization, Mapping, and Monitoring
Abstract:
Given this background, characterizing on maps the threat of landslides, is based on the analysis of susceptibility obtained from landslide inventory maps which show movements naturally triggered. This is done by using the bivariate method and considering conditioning factors of the land (geology, slope, aspect, geomorphology, fracturing and land uses). The introduction of anthropic factor in this analysis has been dealt with on the basis of drawing up a map of density, considering those landslides caused by human actions (anthropic density). Crossing this latter map with natural susceptibility, gives us a more realistic idea about the threat studied. Finally, rain as triggering factor is added using a modification of the Mora-Vahrson method which considers maximum daily precipitation for a given return period. The resulting map allows us to identify areas of a metropolitan area where the susceptibility to landslides ranges from low, moderate, to high and very high.
See more from this Division: General Discipline Sessions
See more from this Session: Engineering Geology II - Landslides: Characterization, Mapping, and Monitoring