Running time: 3 hours, 1 minute and 16 seconds
Given:
Production by: M.J. Furniss and J. Guntle, Communications and Applications, PNW and PSW Research Stations

Topics covered:

Runoff Generation in Forested Watersheds
Introductions
Background
Benchmark Papers
Good Basic Material
Advanced Material
Journals You Should Consult...
Basic Question That Will Be Addressed
Traditional Forest Hydrology
Problems With the Paired Watershed Approach
What This Course Will Address
Mechanisms—Our focus
Why These Flow Pathways and Mechanisms Are Important
Water Residence Time Is Important
What We Will and Will Not Cover
Hillslope and Watershed Hydrology
Experimentalist and Modeler
Shortcourse Outline
Example Locations
Runoff Generation Overview
This Section
Our History
Runoff Generation at a Point Depends on
Storm Characteristics and Watershed Runoff
Natural Conditions for Infiltration Excess Overland Flow
Other Factors that Promote IEOF
READ
Hydraulic Conductivity of Some Materials
Hydrological Pathways
Hewlitt and Hibbert's, 1967 VSAC
SOF Country
Saturated Areas: We Can Estimate Based on Topography
Saturation Overland Flow
Spatial and Temporal Dynamics
Subsurface Stormflow
How This Might Happen
But, Also Can Be Highly Preferential
Dominant Processes of Hillslope Response to Rainfall
Model Conceptualization of These Processes
Proccess assumptions
3D Diagram
Plot Scale
This section
Plot Scale: Example, Inceptisols
What Changes With Depth
Depth Function
Drainable Porosity
Ksat
But Don't Forget....
Soil Profiles and Cone Penetrometer
The Plot Scale Simplified
Pores
Network-Like
If Darcy Were Alive Today...
How Infiltration Really Works
Infiltrations in Macroporous Soils
Classification of Macropores
If We Were to Dig a Pit
In Other Words
Macropores: Engineers Knew About This > 100 Years Ago
Observations
Observations
Plant Roots
Hillslope Scale
This section
From Vertical to Lateral Flow
Vertical to Lateral
Surface and Bedrock Topography
Hillsope Trenching
Surface and Bedrock Topography
Flow Distribution Across the Trench
Transient Saturation: Spatial Pattern 5mm
Transient Saturation: 9mm
Transient Saturation: 16mm
Transient Saturation: 29mm
Transient Saturation: 50mm
Transient Saturation: 59mm
Transient Saturation: 61mm
Threshold Effects
Threshold Effects- A Common Observation
Fill and Spill Behavior
Visualizing These Processes
Or, if a 2-Layer System...
Or, if a 2-Layer System cont.
Equals Transmissivity Feedback
Back to Our Photo...
Back to Transmissivity Feedback
Pipeflow
We See Thresholds for Lateral Pipeflow Also...
Wherever We Trench, Pipeflow Dominates
Transient Water Table Drives the Pipeflow
We've Known About Complexity for a Long Time
Catchment Scale
This section
Soil moisture—Wet
Soil moisture—dry
Terrain Relationships
Threshold Responses
Back to the Soil Moisture Diagram
Threshold Responses cont...
How Catchment Units Sequence
Why This Is Important
Another Way of Looking at This
It's Not Continuous
Or, Looking at This Geochemically
Discrete Units That Connect and Disconnect
From Geographic Source to Time Source
The Reality
The Old Water Paradox
Not a New Idea
Stable Isotopes: Hydrological Tool
Two-Component Hydrograph Separation
Time Source of Water During Events
How Old is the old Water?
A Recent GEOREF Search
Residence Time Methods
Convolusion Integral
Mean Residence Time
Some Reported Mean Residence Times
Watershed Model
Summary
Basic Question That We Addressed
One Proviso Before Ending
REA: Something to Keep in Your Mind
REA: Something That You Can Determine
Hillslope and Watershed Hydrology
Shortcourse Summary
For a More Extended Virtual Course...