Lecture 1 - AOM 4643 Principles and Issues in Environmental...

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AOM 4643 Principles and Issues in Environmental Hydrology
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Definitions Hydrologic Science Focuses on the global hydrologic cycle and the processes involved in the land phase of that cycle. Predicts spatial and temporal distribution of water in the terrestrial, oceanic and atmospheric compartments of the global water system Predicts movement of water on and under earth’s land surfaces and the physical/ chemical/ biological processes that accompany, conduct or affect movement Applied or Engineering hydrology uses this understanding to design and operate flood control, water supply, irrigation and drainage, pollution abatement, wildlife protection systems. i.e., for planning and management of water resources.
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Describes the continuous circulation of water from land and sea to the atmosphere and back again. Concept is based on mass balance and is simply that water changes state and is transported in a closed system which extends approximately 1 km down into the earth’s crust and about 15 km up into the atmosphere. The cycle is only closed earth-wide, not on a watershed or continental scale. Thus practicing hydrologists are typically faced with an open system. The energy required to keep the hydrologic cycle going is
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Lecture 1 - AOM 4643 Principles and Issues in Environmental...

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