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Specific yield as determined by type-curve analysis of aquifer-test data

January 1, 1994

The commonly used analytical solution developed by Neuman for a homogeneous, water-table aquifer assumes that the drainage of pores in the zone above the water table due to lowering of the water table occurs instantaneously. Noninstantaneous drainage of pores in the unsaturated zone accounts for the finding that both type-curve analysis and volume-balance calculations yield values of specific yield that are slightly less than those obtained from laboratory column-drainage experiments. It may also account for a slight underestimation of vertical hydraulic conductivity as obtained by type-curve analysis.

Publication Year 1994
Title Specific yield as determined by type-curve analysis of aquifer-test data
DOI 10.1111/j.1745-6584.1994.tb00934.x
Authors Allen F. Moench
Publication Type Article
Publication Subtype Journal Article
Series Title Ground Water
Index ID 70017629
Record Source USGS Publications Warehouse
USGS Organization Toxic Substances Hydrology Program