Theis type curve

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Theis type curve . A log-log plot of the well function, W(u), versus the argument u, in which u describes for a confined aquifer the theoretical relationships among observation-well distance, time since pumping began, and the aquifer storativity coefficient and transmissivity . It is used to determine aquifer properties, drawdown, or pumping rate, based on the results of an aquifer test (Todd, 1959, p.90-94). Cf: Theis equation; Thiem equation .

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