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The AAPG/Datapages Combined Publications Database
Environmental Geosciences (DEG)
Abstract
Can Storage Coefficient Be Neglected in the Estimation of Unconfined Aquifer Parameters?
Xunhong Chen 1
1 Conservation and Survey Division, University of Nebraska–Lincoln, Lincoln, NE 68588
Xunhong Chen is an associate professor and research hydrogeologist with the Conservation and Survey Division at the University of Nebraska–Lincoln. He received his Ph.D. from the University of Wyoming. His current research includes groundwater modeling, aquifer tests, and stream–aquifer interactions.
Abstract
inverse
computational procedureso that Kr, Kz, and Sy can be automatically calculated. Computationsconverge relatively fast because evaluation of the Dagan solutionis mathematically simpler than is the Neuman solution. Datafrom three pumping tests conducted in alluvial aquifers in thePlatte and Republican River valleys, Nebraska, were analyzed.Earlytime drawdown data from the site in the Platte River valleyare scarce, but plenty of early-time drawdowns were collectedfrom the two sites in the Republican River valley. Comparisonof the results from the Dagan and the Neuman solution indicatesthat the Dagan solution provides aquifer parameter values veryclose to those of the Neuman solution in most situations. Formost practical purposes, the Dagan solution is as good as theNeuman solution for aquifer test analysis.Pay-Per-View Purchase Options
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