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Unformatted text preview: Geol 101 Streams and Drainage Systems 13/11/2007 13:49:00 ← Streams • Flowing water in a natural passageway • Influenced By: o Sediment Load o Volume and Variability of Discharge o Slope of regional topography o Local geography ← Human use of streams • Transportation • Human Habitat o Flat-easy to build on o Soils-deep and fertile o Water is available • Hazard o Floods o Pollution ← Streams -> part of hydrologic cycle • Both reservoir and transport mechanism o Atmosphere -> Stream -> Oceans o Cycling on land ← Energy Balance • Solar (heat) energy -> mechanical energy as water flows down slope due to gravity • Mechanical energy wears down the topography that was created by the earth’s internal heat (plate tectonics) ← Water in a Stream • Discharge (Q) m3/sec o Q=V*A o V = water velocity in m/s o A = cross-sectional area of the stream channel at a given point (msq) • Load – amount of sediment and dissolved constituents being transported...
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This note was uploaded on 04/28/2008 for the course GEOL 101 taught by Professor Olinsky during the Fall '08 term at Texas A&M.
- Fall '08