Introduction to Hydrology and Water Resources Philip B. Bedient Rice University Fall, 2005 Major Hydrologic Processes Precipitation (radar or rain gage) Evaporation or ET (loss to atmosphere) Infiltration (loss to subsurface soils) Overland flow (sheet flow toward nearest stream)
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Philip B. Bedient
P - I - E - T - RO = dS/dt
segments and their watersheds
Digital data organized with spatial analysis tools from GIS
Datasets linked to map locations
Midnight 1 a.m.
Soil is Saturated.
Example: Initial Loss = 0.5 in, Uniform Loss = 0.05 in/hr
New Mexico, Utah, Wyoming
The Navajo Generating Station in Page, Arizona supplies power
Pumping Plant on the Hayden - Rhodes Aqueduct of the CAP.
Ak-Chin Indian tends to a irrigated field
Fannin-McFarland Reach 1A winds through a populated area near Apache Junction.
Check structures regulate the flow