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Q-LAVHA: A flexible GIS plugin to simulate lava flows

AutorMossoux, Sophie; Saey, Mathijs; Bartolini, Stefania ; Poppe, Sam; Canters, Frank; Kervyn, Matthieu
Palabras claveFLOWGO
Lava flow hazard
Lava flow simulation
Q-LavHA
QGIS
VORIS
Fecha de publicaciónsep-2016
EditorElsevier
CitaciónComputers & Geosciences, 97: 98–109 (2016)
ResumenQ-LavHA is a freeware plugin which simulates lava flow inundation probability from one or regularly distributed eruptive vents on a Digital Elevation Model (DEM). It combines existing probabilistic and deterministic models and proposes some improvements to calculate the probability of lava flow spatial propagation and terminal length. Spatial propagation is constrained by the probabilistic steepest slope. Corrective factors are included to allow the flow simulation to overcome small topographical obstacles and to fill pits. The terminal length of the flow simulation can be determined based on a fixed length value, a statistical length probability function or based on the thermo-rheological properties of an open-channel lava flow. The impact of model parameters, background slope and DEM resolution on the accuracy of the simulations are discussed. The user-friendly interface and the flexibility of Q-LavHA makes it a tool applicable from long-term volcanic hazard assessment to short-term hazard forecasting. © 2016
Versión del editorhttp://dx.doi.org/10.1016/j.cageo.2016.09.003
URIhttp://hdl.handle.net/10261/137635
DOI10.1016/j.cageo.2016.09.003
ISSN0098-3004
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