Ground Water · 1980 · 71 citations · 3 references
Natural ResourcesEarth SciencesWater Resources ManagementGroundwater HydrologyHydraulic EngineeringWater Resources EngineeringAquifer CharacterizationAquifer FlowAquifer PropertiesGroundwater HydraulicsGroundwater ModelingGroundwater Resource AssessmentAquifer Parameter EstimationAquifer RecoveryDrawdown AnalysisHydraulic TestingPumpingPumping TestsStep-drawdown Test AnalysisStep-drawdown Tests
ABSTRACT The expression image is a handy tool for predicting aquifer parameters using all the drawdown and recovery data obtained during step‐drawdown tests or periods of cyclic or intermittent pumping. For inefficient wells the expression image fits pumping wells better. The data from conventional step‐drawdown tests of pumping wells can be used to obtain T, C, and y. If the data fail to fit the ideal, they may be used to interpret local hydrologic conditions.
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