QGIS SBM Tools

• FlowPathDown_BB - Generates paths of debris-flow from the trigger points according to Burton and Bathurst (1998).
• Input:
• DTM: Digital Terrain Model grid
• FlowDir: Flow direction grid
• Trigger: Trigger points grid
• Trigger's value: pixel value for trigger points in trigger grid
• Alfa: alfa as in Burton e Bathurst (default 0.40)
• Slope (%): slope threshold (default to 0.14054 (8°)
• FlowDir coding: Flow direction grid encoding (according to ESRI (1-128), or to HyGrid2k2 (0-315) or to TauDEM (1-8))
• Output:
• FlowPathDown: grid of flow paths. Pixel values corrisponds to transited debris-flow (starting from each trigger point).
• References:
• Burton A., Bathurst J.C. (1998): Physically based modelling of shallow landslide sediment yield at a catchment scale. Enviromental Geology, 35 (2-3), 89-99.
• Author:
• Ruggero Valentinotti http://www.bacinimontani.provincia.tn.it