Articles | Volume 24, issue 6
https://doi.org/10.5194/nhess-24-2093-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-24-2093-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
28 Jun 2024
Research article |
| 28 Jun 2024
| 28 Jun 2024
Evaluating post-wildfire debris-flow rainfall thresholds and volume models at the 2020 Grizzly Creek Fire in Glenwood Canyon, Colorado, USA
Landslide Hazards Program, U.S. Geological Survey, Golden, CO 80401, USA
Samuel Bower
Department of Geology and Geography, West Virginia University, Morgantown, WV 26506, USA
Andrew Knapp
Colorado Department of Transportation, Denver, CO 80204, USA
Jason W. Kean
Landslide Hazards Program, U.S. Geological Survey, Golden, CO 80401, USA
Danielle W. vonLembke
Landslide Hazards Program, U.S. Geological Survey, Golden, CO 80401, USA
Matthew A. Thomas
Landslide Hazards Program, U.S. Geological Survey, Golden, CO 80401, USA
Jaime Kostelnik
Landslide Hazards Program, U.S. Geological Survey, Golden, CO 80401, USA
Katherine R. Barnhart
Landslide Hazards Program, U.S. Geological Survey, Golden, CO 80401, USA
Matthew Bethel
Merrick and Company, Greenwood Village, CO 80111, USA
Joseph E. Gartner
BGC Engineering, Inc., Golden, CO 80401, USA
Madeline Hille
BGC Engineering, Inc., Golden, CO 80401, USA
Dennis M. Staley
Landslide Hazards Program, U.S. Geological Survey, Anchorage, AK 99508, USA
Justin K. Anderson
Tongass National Forest, U.S. Forest Service, Petersburg, AK 99833, USA
Elizabeth K. Roberts
White River National Forest, U.S. Forest Service, Glenwood Springs, CO 81601, USA
Stephen B. DeLong
Earthquake Hazards Program, U.S. Geological Survey, Moffett Field, CA 94043, USA
Belize Lane
Dept. of Civil and Environmental Engineering, Utah State University, Logan, UT 84322, USA
Paxton Ridgway
Dept. of Civil and Environmental Engineering, Utah State University, Logan, UT 84322, USA
Brendan P. Murphy
School of Environmental Science, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
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Cited
16 citations as recorded by crossref.
- Characterizing changes in postfire debris-flow hazard as burned areas recover A. Graber et al. https://doi.org/10.1130/GES02936.1
- LiDAR-Based Delineation and Classification of Alluvial and High-Angle Fans for Regional Post-Wildfire Geohazard Assessment in Colorado, USA J. Lovekin et al. https://doi.org/10.3390/geohazards6030045
- SEPARATE: Storm Event Partitioning And Rainfall Analytics for Tipping-bucket rain gauge data Evaluation B. Murphy & S. David https://doi.org/10.21105/joss.08851
- Rapid hazard prediction and assessment of post-fire debris flows using UAV lidar: Eaton Fire, California Z. Chen et al. https://doi.org/10.1007/s10346-026-02694-0
- Rainfall as a driver of post-wildfire flooding and debris flows: A review and synthesis N. Collar et al. https://doi.org/10.1016/j.earscirev.2024.104990
- The Integration of Fire Ecology and Freshwater Ecosystems in North America: Knowledge Gaps and Research Needs M. Piczak et al. https://doi.org/10.1111/gcb.70945
- Shredding post-fire debris flow likelihood: A field-constrained catchment-scale model of wood-shred surface treatment effectiveness M. Harrison et al. https://doi.org/10.1016/j.geomorph.2026.110343
- Application of Cost-Effective High-Resolution Remote Sensing to Characterize Flooding in Mountain River Corridors I. Joshi et al. https://doi.org/10.3390/w18141764
- Reevaluating flood protection: disaster risk reduction for urbanized alluvial fans T. Grodek & G. Benito https://doi.org/10.5194/nhess-25-4343-2025
- Wildfire-induced geohydrological risk in the Alps S. Melzner et al. https://doi.org/10.1007/s10346-025-02581-0
- Assessment of western Oregon debris‐flow hazards in burned and unburned environments B. Selander et al. https://doi.org/10.1002/esp.70045
- The amplifying effect of wood on debris-flow induced impact forces on bridge superstructures C. Friedl et al. https://doi.org/10.1016/j.enggeo.2025.108312
- Channel morphology and large wood control postfire debris‐flow erosion and deposition F. Rengers et al. https://doi.org/10.1002/esp.70287
- An improved empirical model for predicting postfire debris-flow volume in the western United States A. Gorr et al. https://doi.org/10.5194/nhess-26-2111-2026
- Trajectories of river‐floodplain morphology and hydraulics following compounding wildfire‐flood disturbances A. Hahn et al. https://doi.org/10.1002/esp.70057
- Overview of the first fatal post-fire debris flow event recorded in Italy G. Esposito & S. Gariano https://doi.org/10.1007/s10346-025-02516-9
16 citations as recorded by crossref.
- Characterizing changes in postfire debris-flow hazard as burned areas recover A. Graber et al. https://doi.org/10.1130/GES02936.1
- LiDAR-Based Delineation and Classification of Alluvial and High-Angle Fans for Regional Post-Wildfire Geohazard Assessment in Colorado, USA J. Lovekin et al. https://doi.org/10.3390/geohazards6030045
- SEPARATE: Storm Event Partitioning And Rainfall Analytics for Tipping-bucket rain gauge data Evaluation B. Murphy & S. David https://doi.org/10.21105/joss.08851
- Rapid hazard prediction and assessment of post-fire debris flows using UAV lidar: Eaton Fire, California Z. Chen et al. https://doi.org/10.1007/s10346-026-02694-0
- Rainfall as a driver of post-wildfire flooding and debris flows: A review and synthesis N. Collar et al. https://doi.org/10.1016/j.earscirev.2024.104990
- The Integration of Fire Ecology and Freshwater Ecosystems in North America: Knowledge Gaps and Research Needs M. Piczak et al. https://doi.org/10.1111/gcb.70945
- Shredding post-fire debris flow likelihood: A field-constrained catchment-scale model of wood-shred surface treatment effectiveness M. Harrison et al. https://doi.org/10.1016/j.geomorph.2026.110343
- Application of Cost-Effective High-Resolution Remote Sensing to Characterize Flooding in Mountain River Corridors I. Joshi et al. https://doi.org/10.3390/w18141764
- Reevaluating flood protection: disaster risk reduction for urbanized alluvial fans T. Grodek & G. Benito https://doi.org/10.5194/nhess-25-4343-2025
- Wildfire-induced geohydrological risk in the Alps S. Melzner et al. https://doi.org/10.1007/s10346-025-02581-0
- Assessment of western Oregon debris‐flow hazards in burned and unburned environments B. Selander et al. https://doi.org/10.1002/esp.70045
- The amplifying effect of wood on debris-flow induced impact forces on bridge superstructures C. Friedl et al. https://doi.org/10.1016/j.enggeo.2025.108312
- Channel morphology and large wood control postfire debris‐flow erosion and deposition F. Rengers et al. https://doi.org/10.1002/esp.70287
- An improved empirical model for predicting postfire debris-flow volume in the western United States A. Gorr et al. https://doi.org/10.5194/nhess-26-2111-2026
- Trajectories of river‐floodplain morphology and hydraulics following compounding wildfire‐flood disturbances A. Hahn et al. https://doi.org/10.1002/esp.70057
- Overview of the first fatal post-fire debris flow event recorded in Italy G. Esposito & S. Gariano https://doi.org/10.1007/s10346-025-02516-9
Saved (final revised paper)
Latest update: 03 Aug 2026
Short summary
Every year the U.S. Geological Survey produces 50–100 postfire debris-flow hazard assessments using models for debris-flow likelihood and volume. To refine these models they must be tested with datasets that clearly document rainfall, debris-flow response, and debris-flow volume. These datasets are difficult to obtain, but this study developed and analyzed a postfire dataset with more than 100 postfire storm responses over a 2-year period. We also proposed ways to improve these models.
Every year the U.S. Geological Survey produces 50–100 postfire debris-flow hazard assessments...
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