Longitudinal Profile

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Longitudinal Profile
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Grain Size - Slope Relations
From Ritter et al., 1995
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Grain Size-Slope-Basin Area Relations
S 18(M/A)0.6 M Gain-size A Basin Area
From Ritter et al., 1995
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Slope Adjustments

• Scour and Fill Short-term processes occurs
  during a single event or may last days, months,
  or even a few years.
• Aggradation/degradation Long-term adjustments in
  slope generally requires years to a decades to
  occur. Requires the movement of large amounts of
  sediment.
• Adjustments occur in response to variations in
  runoff, sediment load, and sediment type (size).

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Models of Knickpoint Evolution
From Ritter et al., 1995
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Structural Controls on Knickpoint Form
From Miller, 1991
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Channel Form- Schummian M-Relations
From Ritter et al., 1995
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Bedload - Channel Form Relations
From Ritter et al., 1995
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Cross-sectional Isovels
From Morisawa, 1985
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Wolman-Miller Model of Geomorphic Work
From Wolman and Miller, 1960
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Wolman-Miller Equation
of Total sed. carried by flows of a
given Magnitude

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Wolman-Miller Model of Geomorphic Work
From Wolman and Miller, 1960
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Bakers Modification of theMiller-Wolman Model
From Baker, 1977
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Recovery Times
New Equilibrium
Channel Gradient
Disturbances
Time
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Influence of Flow Duration
From Costa and OConnor, 1995