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Essay / Research Paper Abstract
A paper which looks at various aspects of hydrologics, including watersheds, HEC-1 and frequency analysis. Bibliography lists 11 sources.
Page Count:
5 pages (~225 words per page)
File: JL5_JLhologi.rtf
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Unformatted sample text from the term paper:
moist air rises, it cools and the water vapor which is produced then condenses: this forms clouds. The moisture is carried around the world until it comes back to the
earths surface in the form of precipitation. The water which reaches the ground in this way either evaporates again, or penetrates the surface: this then becomes groundwater, which can then
seep back into the network of rivers and oceans. Alternatively, it may transpire back into the atmosphere. The water left on the surface, the runoff, then drains into lakes, streams
and rivers. From here, it returns to the ocean and the cycle recommences. Diagram: source, Kern Mediation Group 2006
A watershed is an area of land which drains water to a common destination. The characteristics of a watershed would include such factors as the quality and quantity of
the water flowing into it, the permeability of the soil, the type of vegetation present, as well as its shape, orientation and altitude. Many of these characteristics can be altered
by human activity, such as land clearance and water diversions. According to the Encyclopedia of Management (2006, two types of modelling which
are dependent on degree of randomness are deterministic and stochastic. In deterministic models, the values of the variables are known; in stochastic or probabilistic models, this is not the case.
The type of model which is most appropriate for a situation would be chosen according to how much data is known for certain, and how much is based on probabilities.
As described by the United States Army Corps of Engineers (1995) the HEC-1 is a single-event model, which is designed to
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