Chapter
Apr 26, 2012
Surface Volume Estimates for Infiltration Parameter Estimation
Authors: E. Bautista [email protected], T. S. Strelkoff, A. J. Clemmens, and D. Zerihun [email protected]Author Affiliations
Publication: World Environmental and Water Resources Congress 2008: Ahupua'A
Abstract
Volume balance calculations used in surface irrigation engineering analysis require estimates of surface storage. These calculations are often performed by estimating upstream depth with a normal depth formula. That assumption can result in significant volume estimation errors when upstream flow depth evolves slowly with time and cannot be used under zero-slope conditions. This article examines the errors incurred when calculating upstream depth with an approximation to the zero-inertia equation instead of the normal depth formula. The approximation, which uses an empirical adjustment factor, gives reasonable results under a wide range of hydraulic conditions.
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© 2008 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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ASCE Technical Topics:
- Approximation methods
- Engineering fundamentals
- Errors (statistics)
- Hydrologic engineering
- Hydrology
- Infiltration
- Irrigation
- Irrigation engineering
- Mathematics
- Methodology (by type)
- Parameters (statistics)
- River engineering
- Rivers and streams
- Statistics
- Surface irrigation
- Water and water resources
- Water management
- Water storage
- Water supply
- Water supply systems
Authors
Affiliations
A.M.ASCE
USDA-ARS U.S. Arid Land Agricultural Research Center.21881 N Cardon Lane, Maricopa AZ 85239.E-mail: [email protected]
T. S. Strelkoff
USDA-ARS U.S. Arid Land Agricultural Research Center.21881 N Cardon Lane, Maricopa AZ 85239
A. J. Clemmens
USDA-ARS U.S. Arid Land Agricultural Research Center.21881 N Cardon Lane, Maricopa AZ 85239
Dept. of Soil, Water and Environmental Science, Univ. of Arizona, Shantz Bldg., Tucson, AZ 85721.E-mail: [email protected]
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