GLY 101 Lecture Notes - Lecture 13: Oxbow Lake, Floodplain, Sinuosity
12 Apr 2018
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Document Summary
Drainage basins are any area of land where precipitation collects and drains off into a common outlet, such as into a river, bay, or other body of water. The width of the river effects the velocity of potential discharge; the narrower the river bed, the faster the discharge. Discharge: the rate of water flow expressed as volume per unit of time. Available sediment: the amount of sediment waiting to be moved. Gradient: the slope of the stream bottom. Channel pattern and sinuosity of the stream path. Regional flood: normally occur on a seasonal basis when winter and spring rains combine with melting snow to overfill river basins and flood the banks. They also occur during periods of excessive rain when the rain saturates the soil and the runoff overflows streams and rivers. Local flooding: occurs in relatively small geographic areas, for example, a few streets in a city of a single town.
