Geosci. Model Dev., 4, 591-610, 2011
www.geosci-model-dev.net/4/591/2011/
doi:10.5194/gmd-4-591-2011
© Author(s) 2011. This work is distributed
under the Creative Commons Attribution 3.0 License.
Coupled atmosphere-wildland fire modeling with WRF 3.3 and SFIRE 2011
J. Mandel1, J. D. Beezley1, and A. K. Kochanski2
1Department of Mathematical and Statistical Sciences, University of Colorado Denver, Denver, CO, USA
2Department of Meteorology, University of Utah, Salt Lake City, UT, USA

Abstract. We describe the physical model, numerical algorithms, and software structure of a model consisting of the Weather Research and Forecasting (WRF) model, coupled with the fire-spread model (SFIRE) module. In every time step, the fire model inputs the surface wind, which drives the fire, and outputs the heat flux from the fire into the atmosphere, which in turn influences the atmosphere. SFIRE is implemented by the level set method, which allows a submesh representation of the burning region and a flexible implementation of various kinds of ignition. The coupled model is capable of running on a cluster faster than real time even with fine resolution in dekameters. It is available as a part of the Open Wildland Fire Modeling (OpenWFM) environment at http://openwfm.org, which contains also utilities for visualization, diagnostics, and data processing, including an extended version of the WRF Preprocessing System (WPS). The SFIRE code with a subset of the features is distributed with WRF 3.3 as WRF-Fire.

Citation: Mandel, J., Beezley, J. D., and Kochanski, A. K.: Coupled atmosphere-wildland fire modeling with WRF 3.3 and SFIRE 2011, Geosci. Model Dev., 4, 591-610, doi:10.5194/gmd-4-591-2011, 2011.
 
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