Remote Sensing Applications For Fire Management By: Whitney Adams GPHY 426 Photo Courtesy of Kara Fuhrmeister Fire Risk Analysis Applications http://www.nps.gov/fire/wildland-fire/learning-center/fire-in-depth/understanding-fire-danger.cfm Remote Sensing of Live Fuel Moisture Content (Yerba et al 2013) LFMC inverse relationship with probability of ignition Benefits of remotely sensed LFMC -Regional based information -Historical reference data available http://www.intechopen.com/books/biomass-and-remote-sensing-of-biomass/introduction-to-remotesensing-of-biomass Difference in the Mid Infrared helps study LFMC from remotely sensed data Common Estimations of LFMC Yerba et. Al 2013 Better estimation of LFMC can lead to more accurate fire risk assessment. Remotely Sensed Identification of High-Cost Fire Danger Areas Wildland-urban interface, WUI, is defined as: “the area where houses meet and intermingle with undeveloped wildland vegetation” (USDA and USDI 2001) Classification of WUI can help fire managers focus mitigation efforts and provide safety information during a fire (Cleve et. al 2008) Cleve et. al used high resolution aerial photography to classify WUI in Napa County, California Compared pixel-based (unsupervised) and objectbased (supervised) classification Object-based on the left, pixel-based on the right (Cleve et. al 2008) Object-based: overall accuracy 80% with Kappa 70% Pixel-based: overall accuracy 62% with Kappa 47% Fuel Loading Predictions using LiDar Canopy bulk density, CBD, and crown fuel weight (CFW) are important metrics for fire risk assessment. Three-dimensional analysis of these metrics is very useful to fire managers worried about ladder fuels and fuel loading. Mapping CBD and CFW can help fire managers locate areas in need of fuel reduction. (Skowronski et. al 2011) Study area: scanning LiDar acquisitions over three 9km^2 located in the Pinelands National Reserve in New Jersey Illustrates CBD at various heights. (Skowronski et. al 2011) Real-Time Fire Information Ikhana unmanned airborne system (UAS) imaging missions (Ambrosia et. al 2011) Unmanned flights- up 24 hour observation periods Carries AMS wildfire sensor: 16 bands with increased thermal band temp. discrimination On-board data processing (auto geo-rectification) Near real-time data distribution (10 minutes) Specific Applications: Fire perimeter shape file data Hot-spot locations True color images of fire area Post Fire Analysis http://www.fs.fed.us/eng/rsac/baer/Spectral_Reflectivity_Overview.pdf AMS sensor can produce burn area response (BAER) assessment imagery (Ambrosia et. al 2011) BAER image on left, Normalized Burn Ratio image on the right (Ambrosia et. al 2011) Literature Review References Ambrosia, V.G., S. Wegner, T. Zajkowski, D.V. Sullivan, S. Buechel, F. Enomoto, B. Lobitz, S. Johan, J. Brass, E. Hinkley. 2011. “The Ikhana unmanned airborne system (UAS) western states fire imaging missions: from concept to reality (2006-2010).” Geocarto International 26: 85-101. Cleve, C., M. Kelly, F. Kearns, M. Moritz. 2008. “Classification of the wildland–urban interface: A comparison of pixel- and object-based classifications using high-resolution aerial photography. Computers Environment and Urban Systems 32: 317–326. Skowronski N.S., k.l. Clark, M. Duveneck, J. Hom. 2011. “Threedimensional canopy fuel loading predicted using upward and downward sensing LiDAR systems.” Remote Sensing of Environment 115, 703–714 (2011). Yebra, M., P. E. Dennison, E. Chuvieco, D. Riaño, P. Zylstra, E. R. Hunt, F. M. Danson, Y. Qi, and S. Jurdao. 2013. “A global review of remote sensing of live fuel moisture content for fire danger assessment: moving towards operational products.” Remote Sensing of Environment 136: 455–468. Other References USDA and USDI. 2001. “Urban wildland-interface communities within vicinity of federal lands that are at high risk from wildfire.” Fed. Registry 66: 751-777. Eureka Fire Photo Courtesy of Chet Smith