Capturing spatiotemporal variation in wildfires for improving postwildfire debris-flow hazard assessments
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Abstract
Wildfires can increase the frequency and magnitude of catastrophic debris flows. Integrated, proactive natural hazard assessment would therefore characterize landscapes based on the potential for the occurrence and interactions of wildfires and postwildfire debris flows. This chapter presents a new modeling effort that can quantify the variability surrounding a key input to postwildfire debris-flow modeling, the amount of watershed burned at moderate to high severity, in a prewildfire context. The use of stochastic wildfire simulation captures variability surrounding the timing and location of ignitions, fire weather patterns, and ultimately the spatial patterns of watershed area burned. Model results provide for enhanced estimates of postwildfire debris-flow hazard in a prewildfire context, and multiple hazard metrics are generated to characterize and contrast hazards across watersheds. Results can guide mitigation efforts by allowing planners to identify which factors may be contributing the most to the hazard rankings of watersheds.
| Publication type | Book chapter |
|---|---|
| Publication Subtype | Book Chapter |
| Title | Capturing spatiotemporal variation in wildfires for improving postwildfire debris-flow hazard assessments |
| Chapter | 20 |
| DOI | 10.1002/9781119028116.ch20 |
| Year Published | 2017 |
| Language | English |
| Publisher | American Geophysical Union |
| Publisher location | Washington, D.C. |
| Contributing office(s) | New Mexico Water Science Center |
| Description | 17 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Monograph |
| Larger Work Title | Natural Hazard Uncertainty Assessment: Modeling and Decision Support |
| First page | 301 |
| Last page | 317 |
| Google Analytic Metrics | Metrics page |