TECHNICAL PAPERS
Jan 1, 1983

Green‐ampt Infiltration Parameters from Soils Data

Publication: Journal of Hydraulic Engineering
Volume 109, Issue 1

Abstract

The analysis of approx 5,000 soil horizons indicated that Green and Ampt parameters (effective porosity, wetting front capillary pressure, and hydraulic conductivity) could not be developed based on phases of soil order or suborder. However, sets of average parameters are developed based on soil horizon or soil texture class, or both. A procedure for determining the Green and Ampt parameters based on soil properties utilizing the full spectrum of soil survey information is outlined.

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References

1.
Bouwer, H., “Rapid Field Measurement of Air Entry Value and Hydraulic Conductivity of Soil as? Significant Parameters in Flow System Analysis,” Water Resources Research, Vol. 2, 1966, pp. 729–738.
2.
Brakensiek, D. L., “Estimating the Effective Capillary Pressure in the Green and Ampt Infiltration Equation,” Water Resources Research, Vol. 13, No. 3, 1977, pp. 680–682.
3.
Brakensiek, D. L., Engleman, R. L., and Rawls, W. J., “Variation within Texture Classes of Soil Water Parameters,” Transactions of the American Society of Agricultural Engineers, Vol. 24, No. 2, 1981, pp. 335–339.
4.
Brooks, R. H., and Corey, A. T., “Hydraulic Properties of Porous Media,” Hydrology Paper No. 3, Colorado State University, Fort Collins, Colo., 1964.
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Brutsaert, W., “Some Methods of Calculating Unsaturated Permeability,” Transactions of the American Society of Agricultural Engineers, Vol. 10, No. 3, 1967, pp. 400–404.
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Childs, E. C., and Collis‐George, N., “The Permeability of Porous Material,” Proceedings of the Royal Society, Section A, Vol. 201, 1950, pp. 392–405.
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Gupta, S. C., and Larson, W. E., “Estimating Soil Water Retention Characteristics from Particle Size Distribution, Organic Matter Percent and Bulk Density,” Water Resources Research, Vol. 15, No. 6, 1979, pp. 1633–1635.
9.
McCuen, R. H., Rawls, W. J., and Brakensiek, D. L., “Statistical Analysis of the Brooks‐Corey and the Green‐Ampt Parameters across Soil Texture,” Water Resources Research, Vol. 17, No. 4, 1981, pp. 1006–1013.
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Rawls, W. J., and Brakensiek, D. L., “Estimating Soil Water Retention from Soil Properties,” Journal of Irrigation and Drainage, ASCE, Vol. 108, No. IR2, June, 1982, pp. 166–171.
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Rawls, W. J., Brakensiek, D. L., and Saxton, K. E., “Soil Water Characteristics,” American Society of Agricultural Engineers Paper No. 81‐2510, 1981.
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Smith, R. E., and Hebbert, R. H. B., “A Monte Carlo Analysis of the Hydrologic Effects of Spatial Variability of Infiltration,” Water Resources Research, Vol. 15, No. 2, 1979, pp. 419–429.
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Smith, R. E., and Parlange, J. Y., “A Parameter‐Efficient Hydrologic Infiltration Model,” Water Resources Research, Vol. 14, No. 3, 1978, pp. 533–538.
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Go to Journal of Hydraulic Engineering
Journal of Hydraulic Engineering
Volume 109Issue 1January 1983
Pages: 62 - 70

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Published online: Jan 1, 1983
Published in print: Jan 1983

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Authors

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Walter J. Rawls, M. ASCE
Hydro., U.S. Dept. of Agr., Agricultural Research Station, Beltsville, Md.
Donald L. Brakensiek
Hydr. Engr., U.S. Dept. of Agr., Agricultural Research Station, Boise, Idaho
Norman Miller
Hydr. Engr., U.S. Dept. of Agr., SCS, Lanham, Md.

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