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A Stream Depletion Field Experiment
Author(s) -
Hunt Bruce,
Weir Julian,
Clausen Bente
Publication year - 2001
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.2001.tb02310.x
Subject(s) - aquifer , lambda , hydrology (agriculture) , field (mathematics) , environmental science , streams , soil science , groundwater , geology , mathematics , geotechnical engineering , physics , computer science , optics , computer network , pure mathematics
A field experiment was carried out to measure drawdowns in observation wells and stream depletion flows that occurred when water was abstracted from a well beside a stream. The field data is analyzed herein to determine the aquifer transmissivity, T, the aquifer storage coefficient, S, and a streambed leakage parameter, λ, by comparing measurements with a solution obtained by Hunt (1999). The analysis uses early time drawdowns with a match‐point method to determine T and S, and stream depletion measurements at later times are used to determine λ. The final results are reasonably consistent for measurements taken in four observation wells. The advantages and disadvantages of this approach are discussed, and two alternative ways of estimating λ are also discussed.