A Scalable Framework for Post Fire Debris Flow Hazard Assessment Using Satellite Precipitation Data

Wildfire is a global phenomenon that has dramatic effects on erosion and flood potential. On steep slopes, burned areas are more likely to experience significant overland flow during heavy rainfall leading post fire debris flows (PFDFs). Previous work establishes methods for PFDF hazard assessment, often relying regional-scale parameterizations with in-situ measurements categorize as function of meteorological surface properties. We present globally scalable approach extend the benefit these models provide new areas. Our model relies publicly available satellite-based inputs extent first order assessments recently results show it possible identify conditions relevant PFDF-initiation processes across variety physiographic settings. Improvements satellite-borne intensity data increased availability occurrence worldwide expected enhance skill applicability further.