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Section 4
High-Gradient Streams

In this section you will find materials that support the implementation of EarthComm, Section 4: High-Gradient Streams.


Investigate

  1. To find data on the discharge of rivers in the United States , visit the following web site:

    Real-Time Water Data for the Nation, USGS
    Identify your local river and find data on its discharge, drainage basin area, and stream velocity.

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Inquiring Further

  1. To learn more about the Big Thompson, Colorado flood, visit the following web sites:

    The Big Thompson Canyon Flood of 1976, The Weather Channel
    Brief description of what happened during the Big Thompson Canyon Flood in 1976.

    Colorado Remembers Big Thompson Canyon Flash Flood of 1976, NOAA
    Describes the events and conditions that led up to the Big Thompson Canyon flood.

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Resources

To learn more about this topic, visit the following web sites:

Characteristics of High-Gradient Streams

Streams and Drainage Systems, Tulane University
Describes stream-flow dynamics, including shape, gradient, velocity, and discharge.

Nehalem River Watershed Assessment: Channel Habitat Typing, Portland State University
Provides information on the effects that different stream gradients can have on organisms in the stream.

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