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Fire Propagation Modelling :

Fire Propagation Modelling :. Strategies For Fire Suppression And Prescribed Burning Using FARSITE. John Benoit Armando González - Cabán. USDA Forest Service Pacific Southwest Research Station Riverside, California. FARSITE Overview & inputs FARSITE Demonstration

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Fire Propagation Modelling :

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  1. Fire Propagation Modelling: Strategies For Fire Suppression And Prescribed Burning Using FARSITE • John Benoit Armando González-Cabán USDA Forest Service Pacific Southwest Research Station Riverside, California

  2. FARSITE Overview & inputs • FARSITE Demonstration • Simulating fuel treatment • Simulating fire suppression • Batch fire simulations – San Jacinto study • Fuel treatment • Fire suppression • Economics data layer • Results • Concluding remarks • Other software • Hands-On Demonstration Topics Covered

  3. Fire simulation software used by the US Forest Service Used for wildfire behavior forecasting Used for prescribed fire planning Can be downloadede.g. http://fire.org FARSITE Overview

  4. FARSITE Overview From FARSITE: Fire Area Simulator—model development and evaluation Mark A. Finney 1998. RMRS-RP-4, USDA Forest Service, Rocky Mountain Research Station.

  5. FARSITE Overview

  6. http://nationalmap.gov • http://www.landfire.gov FARSITE Inputs GIS Layers Topography Elevation Slope Aspect Vegetation Ground Fuels Canopy • NFFL 13 fuels • Scott & Burgan 40 fuels • Custom fuels

  7. LANDFIRE • http://www.landfire.gov • Data coverage over entire US • Interactive data selection • Can download as GIS layers or as FARSITE-ready files FARSITE Inputs

  8. FARSITE Inputs Weather & Wind Data Temperature Relative humidity Precipitation Wind direction Wind speed Cloud cover

  9. FARSITE Inputs Weather & Wind Data Single stream Observed weather station data (RAWS, etc.) Forecasts for a single point

  10. FARSITE Inputs Weather & Wind Data Gridded weather High-resolution weather forecast Interpolated from single stream – Wind Ninja / Wind Wizard

  11. 18Z19Jun2002 10 km Analysis 1 km 4 km FARSITE Inputs

  12. Version 3 versus Version 4 FARSITE Inputs * Can accept gridded wind data AND gridded temperature, RH, etc. * Uses maps of older fuel models only * Gridded wind data only! * Better fuel moisture calculation * Can use either newer fuel models or older ones

  13. San Jacinto Ranger District From http://maps.google.com

  14. FARSITE Demo Esperanza Fire Occurred 26 October 2006 Set by arson ~16,600 ha (~41,000 ac) > $9 million in damage 5 firefighter deaths http://visibleearth.nasa.gov/view.php?id=17535

  15. Looking southward from Cabazon (in Banning Pass) FARSITE Demo Looking northeast of Highway 243

  16. FARSITE Demo Started 1am Oct 26, 2006 8am fire perimeter Winds from east Wind-driven fire Erratic fire behavior

  17. FARSITE Demo From Using high-resolution weather data to predict fire spread using the FARSITE simulator—a case study in California chaparral David R. Weise, S. C. Chen, P. J. Riggan, C. Jones, B. W. Butler, and F. M. Fujioka Seventh Symposium on Fire and Forest Meteorology 2007

  18. FARSITE Demo Demo: Building a landscape file Specifying input files Using a weather stream vs. grid- Keenwild RAWS data- Gridded RSM forecast data Parameters- Time step- Visible step- Perimeter resolution- Distance resolution Legend / identifying fuels Starting a fire- Driptorch tool- Reading ignition locations from file

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