LaharZ is an open source tool which can be used to model various flow hazards, most significantly lahars. From a digital elevation model (DEM), LaharZ creates stream files; flow direction files; an energy cone based on a height/length (H/L) ration; a set of initiation points (which can be edited) and a set of flow files based on a range of volumes.
The stream and flow files can also be created on any appropriate QIS system; the resulting flows can similarly be displayed on any GIS system. However, LaharZ has been written and tested using QGIS.
The graphics produced can be displayed on any visualisation tool (including QGIS’s 3D mapping tool). However, LaharZ has been written and tested using Paraview for 3D graphics.
The programme is based on Schilling, S.P., 1998.
See the documenation for more details. A full user guide is provided.
Keith Blair laharz@hotmail.com August 2024 Version 2.1.3