300. Surface Water. Chapter 13. The Role of Streams & Rivers. What role do streams & rivers play on Earth? ~½ of the water that falls to Earth’s surface eventually ends up in a stream or river & most drain to oceans essential part of the water cycle Most important agent of surface erosion.
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Measuring Stream Velocity Video
change in distance
Mean of monthly stream flow at Peachtree Creek for each month (for the years 1958 to 2002) The January value of 174 cubic feet per second (ft3/s) was computed by averaging the 44 mean January stream flows (1959-2002).
How Streams Transport Materials
•velocity (speed of stream)
• discharge (volume of water)
Which stream carries larger/more sediment?
deposition patternsStream Deposition
settling rate by size, shape, density animation
vertical sorting animation
Cross-section on next slide