11-17-08

11-17-08 - Geography 1111 Drainage Basins/Stream Flow 1 2 3...

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Geography 1111 11/17/08 Drainage Basins/Stream Flow 1. Basic concepts 2. What happens to precipitation? 3. Delivery of water to stream channels 4. Factors affecting infiltration 5. Hydrographs Basic Concepts Degradational action of running water on the earth’s surface o Water in streams, channelized flow o Water running over land, unconfined to streams, called sheetwash, overland flow, or slope runoff. Erosion o Slope runoff—delivers sediment to stream channel o Channelized flow in stream delivers sediments to the ocean Base level o Lowest point in which a stream can reach o Ocean Drainage basin—terrain that contributes water carried by a stream o Same as a watershed o Collects water and delivers it to a stream (valleys) o Water area that collects and channelizes flow o Oconee R Altamaha R Atlantic Ocean o Chattahoochee/Flint R Apalachicola R Gulf of Mexico Drainage Networks o Typical drainage network: Dendritic o Slope controlled: Parallel: flowing downward
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This note was uploaded on 01/17/2011 for the course GEOG 1111 taught by Professor Hopkins during the Fall '08 term at UGA.

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11-17-08 - Geography 1111 Drainage Basins/Stream Flow 1 2 3...

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