ERS 482/682 Small Watershed Hydrology

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ERS 482/682Small Watershed Hydrology
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Preliminaries

• Syllabus
• Schedule
• Background Survey

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Hydrology

• The science that deals with the waters of the
  earth and their occurrence, distribution, and
  circulation at the surface, underground, and in
  the atmosphere.

Figure 1.1 (Manning 1987)
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Small watershed hydrology

• Issues
• Often ungaged (i.e. little or no data)
• Local variables may dominate
• Temporal/spatial variability may be important
• Significance
• Most watersheds are small!
• TMDL assessment

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Hydrologic cycle
Figure 1.1 (Dunne Leopold 1978)