L10_StreamsFloods

L10_StreamsFloods - 3/12/2011 MASS WASTING REVIEW Forces:...

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3/12/2011 1 MASS WASTING REVIEW Forces: Friction and Shear Strength Normal Force and Shear Force Factors Types Triggers G S N F MASS WASTING REVIEW Forces Factors: Slope Composition (Size and Shape of Material) Vegetation Water Content Types Triggers
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3/12/2011 2 MASS WASTING REVIEW Forces Factors Types: Flow Slide/Slump Fall Triggers SOURCE: http://earthsci.org/flooding/unit3/u3-02-03.html
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3/12/2011 3 MASS WASTING REVIEW Forces Factors Types Triggers: Humans Earthquakes Heavy Rains/Floods Forest Fires Streams and Floods
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3/12/2011 4 Hydrologic Cycle River Systems
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3/12/2011 5 River Systems Drainage Basin Watershed River Headwaters Floodplain Mouth (Delta) Channel Width/Depth Valley Controls on River Systems Geology Climate Biota Time Humans
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3/12/2011 6 Channel Flow Width Depth Cross-sectional Area Velocity V = Distance/Time USGS uses Ft/Second
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3/12/2011 7 Velocity Forces related to Velocity Gravity Gradient Slope = Rise/Run Channel Roughness Friction Viscosity Stickiness of the Fluid
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3/12/2011 8 Discharge Q = A x V Q = discharge (cfs, m 3 /s) A = area (ft 2 , m 2 ) Width x Depth V = velocity (ft/s, m/s) Ex. Problem 1:
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This note was uploaded on 03/12/2011 for the course GEOL 1113 taught by Professor Manger during the Spring '07 term at Arkansas.

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L10_StreamsFloods - 3/12/2011 MASS WASTING REVIEW Forces:...

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