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Open AccessArticle

Weather, Risk, and Resource Orders on Large Wildland Fires in the Western US

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Department of Agricultural and Resource Economics, Colorado State University, Fort Collins, CO 80523, USA
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Department of Forest and Rangeland Stewardship, Colorado State University, Fort Collins, CO 80523, USA
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Rocky Mountain Research Station, US Department of Agriculture Forest Service, Fort Collins, CO 80526, USA
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Forest Engineering, Resources & Management, Oregon State University, Corvallis, OR 97331, USA
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Rocky Mountain Research Station, US Department of Agriculture Forest Service, Missoula, MT 59801, USA
*
Author to whom correspondence should be addressed.
Forests 2020, 11(2), 169; https://doi.org/10.3390/f11020169
Received: 31 December 2019 / Revised: 28 January 2020 / Accepted: 30 January 2020 / Published: 3 February 2020
Research Highlights: Our results suggest that weather is a primary driver of resource orders over the course of extended attack efforts on large fires. Incident Management Teams (IMTs) synthesize information about weather, fuels, and order resources based on expected fire growth rather than simply reacting to observed fire growth. Background and Objectives: Weather conditions are a well-known determinant of fire behavior and are likely to become more erratic under climate change. Yet, there is little empirical evidence demonstrating how IMTs respond to observed or expected weather conditions. An understanding of weather-driven resource ordering patterns may aid in resource prepositioning as well as forecasting suppression costs. Our primary objective is to understand how changing weather conditions influence resource ordering patterns. Our secondary objective is to test how an additional risk factor, evacuation, as well as a constructed risk metric combining fire growth and evacuation, influences resource ordering. Materials and Methods: We compile a novel dataset on over 1100 wildfires in the western US from 2007–2013, integrating data on resource requests, detailed weather conditions, fuel and landscape characteristics, values at risk, fire behavior, and IMT expectations about future fire behavior and values at risk. We develop a two-step regression framework to investigate the extent to which IMTs respond to realized or expected weather-driven fire behavior and risks. Results: We find that IMTs’ expectations about future fire growth are influenced by observed weather and that these expectations influence resource ordering patterns. IMTs order nearly twice as many resources when weather conditions are expected to drive growth events in the near future. However, we find little evidence that our other risk metrics influence resource ordering behavior (all else being equal). Conclusion: Our analysis shows that incident management teams are generally forward-looking and respond to expected rather than recently observed weather-driven fire behavior. These results may have important implications for forecasting resource needs and costs in a changing climate. View Full-Text
Keywords: resource ordering; weather; risk; evacuation; fire growth; incident management teams resource ordering; weather; risk; evacuation; fire growth; incident management teams
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Bayham, J.; Belval, E.J.; Thompson, M.P.; Dunn, C.; Stonesifer, C.S.; Calkin, D.E. Weather, Risk, and Resource Orders on Large Wildland Fires in the Western US. Forests 2020, 11, 169.

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