EVSC 1010 Lecture Notes - Lecture 5: Silt, Drainage Basin, Evaporation
24 Oct 2016
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Document Summary
Break down into two fields fresh water in the continent and salt water bodies. 2. 5% freshwater (1. 8% - ice caps and glaciers, . 63% - ground water, . 01% lakes and. Shows water circulates constantly among the sea, the atmosphere, and the land. Thousands of cubic kilometers of water transferred each year. Evaporated from ocean and taken to land as precipitation (46) Rivers and streams can be simply defined as water flowing in a channel. Channel: the trough or groove through which a stream flows: rivers and streams are defined by their channels, but they also function to create channels through the process of erosion. First order to second to third to fourth (small streams flow into bigger ones) Drainage basin: land area that contributes water to a river system: erode the channels in which they flow, transport sediments, produce a wide variety of erosional and depositional landforms. Rivers and streams have three important roles in the formation of a landscape.
