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Critical Distance from drainage divide = channelization

Importance of unique events/thresholds Discrete vs. continuous processes Storms Disturbance Landslides Debris Flows. 6. How and where are channels initiated on slopes?. Critical Distance from drainage divide = channelization. Rain splash.

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Critical Distance from drainage divide = channelization

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  1. Importance of unique events/thresholdsDiscrete vs. continuous processesStormsDisturbanceLandslidesDebris Flows

  2. 6. How and where are channels initiated on slopes? Critical Distance from drainage divide = channelization

  3. Rain splash

  4. Where flow is thin, rainsplash disturbance prevents channelization Incision begins when shear stress exceeds strength

  5. Hillslope- channel transition, colluvial hollows

  6.  5. Explain two biologic effects on soil strength and erosion.

  7. 3 Other biotic effects - vary by climate and location

  8. 4. Describe the physical characteristics of debris flows and the deposits they leave.

  9. 3. Describe how slope stability is modeled for planar and rotational slides.   http://ees.as.uky.edu/sites/default/files/elearning/module11swf.swf

  10. FORCE BALANCE DRIVING VERSUS RESISTING GRAVITY SHEAR STRENGTH (FRICTION AND COHESION or VISCOSITY)

  11. Rotational failure - clay, silt, homogeneous material

  12. What is cohesion and why is it important geomorphically?

  13. 1. Predict the effect of a heavy rainstorm on slope stability and explain the reasoning behind your prediction.

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