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Identifying Post-Fire FF and DF
Identifying Post-Fire FF and DF
Introduction
Introduction
Course Completion
Course Completion
The Real Subject Matter Experts
The Real Subject Matter Experts
Defining the Need
Defining the Need
Partnership with USGS
Partnership with USGS
Goal of this Lesson
Goal of this Lesson
Wildfires and their Effects
Wildfires and their Effects
Forest Soil Structure: Pre-fire
Forest Soil Structure: Pre-fire
Forest Soil Structure: Post-fire
Forest Soil Structure: Post-fire
Burn Scars Amplify Hydrologic Impacts
Burn Scars Amplify Hydrologic Impacts
An Example
An Example
Defining Flash Floods and Debris Flows
Defining Flash Floods and Debris Flows
Flash Flood - Definition
Flash Flood - Definition
Debris Flow - Definition
Debris Flow - Definition
Hyperconcentrated Flow - Definition
Hyperconcentrated Flow - Definition
Ice Cream or Milkshake?
Ice Cream or Milkshake?
How they move and sort debris
How they move and sort debris
Debris Flow Sources
Debris Flow Sources
Debris Flow Formation – Channel Erosion
Debris Flow Formation – Channel Erosion
Deposit Signatures
Deposit Signatures
Flash Flood Deposit Signatures
Flash Flood Deposit Signatures
Flash Flood Deposit Signatures – Look Upstream
Flash Flood Deposit Signatures – Look Upstream
Debris Flow Deposit Signatures
Debris Flow Deposit Signatures
Debris Flow Deposit Signatures
Debris Flow Deposit Signatures
Debris Flow Deposit Signatures
Debris Flow Deposit Signatures
Debris Flow Deposit Signatures
Debris Flow Deposit Signatures
Debris Flow Deposit Signatures
Debris Flow Deposit Signatures
Debris Flow Deposit Signatures
Debris Flow Deposit Signatures
Beware of Red Herrings
Beware of Red Herrings
Sediment Signatures
Sediment Signatures
Sediment Signatures
Sediment Signatures
Mixed Sediment Signatures
Mixed Sediment Signatures
What deposit is this?
What deposit is this?
What deposit is this?
What deposit is this?
Review
Review
The Continuum
The Continuum
Thank You!
Thank You!
Identifying Post-Fire Flash Floods & Debris Flows: Post-Event Signatures
Resources
link
USGS HWM Data Collection Manual
link
USGS HWM Field Manual
link
USGS DF Identification
link
USGS DF Hazards in the US
link
USGS DF Geologic Process and Hazard
link
US Forest Service Soil Burn Severity Guide
pdf
Hungr et al. (2001) - Flow Classification
pdf
Cavagnaro et al. (2024) - Flow Types
link
USGS Debris Flow Database Entry Form
pdf
USGS Debris Flow Entry Form Cheat Sheet
link
Post-Fire FF and DF Geology Contacts List (NOAA only)
Exit
Identifying Post-Fire Flash Floods & Debris Flows: Post-Event Signatures
Identifying Post-Fire Flash Floods & Debris Flows: Post-Event Signatures
Identifying Post-Fire Flash Floods & Debris Flows: Post-Event Signatures
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