Study Guide Chapter 17

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Study Guide Chapter 17
1 .Know and use the simple equation for
discharge. Why is this equation
important? 2.What is the gradient of a
stream? 3.Describe the means of stream
transportation. Describe the type of material
transported by each load type. 4.Describe the
features of upper, middle, and lower course of a
river. 5.Describe the 6 patterns that streams
form and how these patterns are formed. 6.Be able
to distinguish stream order on a topographic map.
What are the differences between a first order
stream and second order stream. 7. What is
drainage density 8. Interpret a hydrograph. 9.
What is a yazoo stream, oxbow lake, delta, and
levee? 10. Describe a drainage basin/watershed,
interfluve, and divide.
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Fluvial Processes and Landforms

• Stream is a general term for water in a channel.
  We call a large stream a river.
• Fluvial processes are any work done by a stream.
• Gradient of stream is the vertical drop.

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Stream flow

• Discharge- The amount of water passing a
  particular point per unit time.
• Q AXV where Q is discharge in ft3/sec CFS (cubic
  feet per second) , A is the cross sectional area
  of the stream ft2, and V is the velocity of the
  stream ft/sec
• A width (ft. ) X depth of stream (ft.)
• Gauging stations (Fig. 17.6) maintained by
  Department of Public Works or USGS.

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Stream Transportation

• Upper course
• More gradient and more energy
• V shaped valleys formed from erosion (Fig. 17.20)
• Middle Course
• Meandering of stream
• Reduced gradient/decreased energy
• Lower Course
• Vast floodplain.
• Yazoo stream, oxbow lake, delta, Levee

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Upper Course
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Fig. 17-7, p. 476
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Stream ordering
Fig. 17-5, p. 475
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Drainage Patterns
Fig. 17-8, p. 477