Command Area Water Demands. I: Validation and Calibration of UCA Model
Publication: Journal of Irrigation and Drainage Engineering
Volume 120, Issue 6
Abstract
Simulation of aggregate water demands by areas commanded by canal and lateral turnouts is an important input to the operation and management of the irrigation delivery system. A computer simulation model to predict these command area water‐demand functions was developed and reported by Keller in 1987. To test the validity of the model, data from an existing irrigation project in the Delta, Utah, area were used to simulate the aggregate irrigation demand of five turnouts operated on a demand basis. During the model calibration process, the influence of three important variables in the operation stage on the prediction of demand was identified using the cumulative water‐demand curve. The key variables were: (1) Management‐allowable depletion (MAD); (2) irrigation application uniformity (IAU); and (3) initial soil moisture (ISM).
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References
1.
Abdellaoui, R. M. (1986). “Irrigation system design capacity for on‐demand operation,” PhD dissertation, Utah State University, Logan, Utah.
2.
Hargreaves, G. H., and Samani, Z. A. (1985). “Reference crop evapotranspiration from temperature.” Appl. Engrg. in Agr., 1(2), 96–99.
3.
Keller, A. A. (1987). “The USU unit command area model.” Water Management Synthesis II Rep. #71, Utah State University, Logan, Utah.
4.
Pérez, S. E. (1989). “Analysis of command area water supply in central Utah using the USU unit command area model.” Rep., Utah State University, Logan, Utah.
5.
Stamm, G. C. (1967). “Problems and procedures in determining water supply requirements for irrigation projects.” Irrigation of agricultural lands, R. M. Hagan, H. R. Haise, and T. W. Edminster, eds., American Society of Agronomy, Madison, Wisc.
6.
U.S. Dept. of Agriculture (USDA), Soil Conservation Service, and U.S. Dept of the Interior Bureau of Land Management (1977). Rep., Soil Survey of Delta Area. Utah Agricultural Experimental Station, Utah.
7.
Walker, W. R. (1990). “Integrating strategies for improving irrigation system design and management.” Water Mgmt. Synthesis Project II Tech. Rep. 70. Utah State University, Logan, Utah.
8.
Yamashita, S., and Pérez, S. E. (1988). “Survey of the Wilson Canal.” Rep., International Irrigation Center, Logan, Utah.
Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 120 • Issue 6 • November 1994
Pages: 1025 - 1042
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Sep 22, 1992
Published online: Nov 1, 1994
Published in print: Nov 1994
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