Community Research and Development Information Service - CORDIS

Software probability model for torrent debris flows (PROMOTOR-df)

The GIS-based model developed for hazard assessment at catchment scale is indicated as Probability Model for Torrent Debris Flows (PROMOTOR-df) - it is a user-friendly version based on the application of graphical user interfaces. The model provides first-order probability predictions for different debris-flow magnitudes from an individual torrent, based on end-user specified scenarios for precipitation and using a wide range of catchment properties.

PROMOTOR-df is based on the PCRaster Environmental Modelling Language, developed at the Faculty of Geographical Sciences of Utrecht University. As the name suggests, PCRaster is a raster-based Geographical Information System. The architecture of the system permits the integration of environmental modelling functions with classical GIS functions.

The meta-language structure of PCRaster allows the direct use of all kinds of existing equations. In this way, users are able to build models in a flexible way. Using this principle, PROMOTOR-df contains groups of process equations for slope hydrology, debris-flow initiation, debris-flow and/or water-flow propagation, and deposition.

For end-users, a specially designed interface allows an easy operation of the model both with regard to input and to visualizing the different types of output. The software is freely accessible on registration with the PCRaster managing team. All necessary information, software and instruction to apply the PROMOTOR-df software is brought together in comprehensive guidelines.

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