A GIS-based fire spread simulator integrating a simplified physical wildland fire model and a wind field model |
| |
| Authors: | D Prieto Herráez L Ferragut Canals J M Cascón Barbero A Morillo Rodríguez |
| |
| Institution: | 1. Applied Mathematics Department, University of Salamanca, Salamanca, Spain;2. Fundamental Physics and Mathematics University Institute, University of Salamanca, Salamanca, Spain;3. Fundamental Physics and Mathematics University Institute, University of Salamanca, Salamanca, Spain;4. Economy and Economic History Department, University of Salamanca, Edificio FES, Campus Miguel de Unamuno, Salamanca, Spain;5. SEAGA, Xunta de Galicia, Polígono Industrial do Tambre, Santiago de Compostela, Spain |
| |
| Abstract: | ??This article discusses the integration of two models, namely, the Physical Forest Fire Spread (PhFFS) and the High Definition Wind Model (HDWM), into a Geographical Information System-based interface. The resulting tool automates data acquisition, preprocesses spatial data, launches the aforementioned models and displays the corresponding results in a unique environment. Our implementation uses the Python language and Esri’s ArcPy library to extend the functionality of ArcMap 10.4. The PhFFS is a simplified 2D physical wildland fire spread model based on conservation equations, with convection and radiation as heat transfer mechanisms. It also includes some 3D effects. The HDWM arises from an asymptotic approximation of the Navier–Stokes equations, and provides a 3D wind velocity field in an air layer above the terrain surface. Both models can be run in standalone or coupled mode. Finally, the simulation of a real fire in Galicia (Spain) confirms that the tool developed is efficient and fully operational. |
| |
| Keywords: | GIS integration ArcPy wildland fire spread model wind field model |
|
|
