Climate Change and Human Security: The Challenge to Local

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The Corps is in the process of evaluating alternatives for both current and long-term downstream temperature management and fish passage at many of the dams in the Willamette Project. All watersheds consist of boundaries, a basin and collection areas. water table -- the surface between the zone of saturation and the zone of aeration. waterfall -- the perpendicular or very steep descent of a stream. wave crest -- the top of a wave. wave height -- the vertical distance between the crest and adjacent trough of a wave. wave length -- the distance between two successive wave crests or troughs. wave trough -- the low spot between two successive waves. weathering -- the physical, chemical, and biological processes by which rock at or near the Earth's surface is broken down into smaller pieces. wind farm -- an area in which a large number of windmills have been erected to generate electrical power. zone of aeration -- the area immediately below the ground surface within which pore spaces are partially filled with water and partially filled with air. zone of leaching -- the upper horizons in a soil, through which gravitational moisture travels, removing soluble decomposition products. zone of saturation -- the zone below the zone of aeration in which all pore spaces are filled with water.

Pages: 192

Publisher: Edward Elgar Pub (September 29, 2011)

ISBN: 1848443722

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