RunningWater

RunningWater - Chapter 16 Running Water Vast majority of...

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Chapter 16 Running Water Vast majority of water on/in the earth is saltwater. Hydrologic cycle tracks movement of Earth’s water. Precipitation Infiltration Runoff Evaporation Transpiration All flowing bodies of water confined to channels are STREAMS. Each stream has a DRAINAGE BASIN, or area that contributes water to that particular stream. Drainage basins are separated by divides, or high spots Gradient – slope of a stream channel Steeper gradient, faster water. Gradient changes over length of stream Headwaters steeper Mouth less steep Speed of water also controlled by Shape of stream channel Volume of water Location within the stream Discharge – volume of water flowing past a point in the stream in a given unit of time. Usually given in cubic meters/second or cubic feet/second High discharge occurs during times of flood. Base level – lowest point to which a stream will erode vertically Ultimate base level is sea level, but local base levels do occur (like at dams) Running water has enormous power to erode rock and soil.
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RunningWater - Chapter 16 Running Water Vast majority of...

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