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Aquifer Parameters from a One‐Dimensional Steady‐Leaky Type Curve
Author(s) -
Motz Louis H.
Publication year - 1990
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.1745-6584.1990.tb02263.x
Subject(s) - aquifer , drawdown (hydrology) , aquifer test , steady state (chemistry) , geology , flow (mathematics) , volumetric flow rate , geotechnical engineering , hydrology (agriculture) , soil science , mechanics , mathematics , geometry , groundwater , physics , groundwater recharge , chemistry
A drain function and type curve were defined for the one‐dimensional steady‐state leaky aquifer case, and a match‐point procedure was developed for determining the aquifer parameters of transmissivity and leakance. Values for these parameters can be determined by plotting steady‐state values of drawdown versus distance and matching the distance‐drawdown data to the steady‐leaky type curve. The procedure is illustrated by an example that utilizes field data from a canal pumping test in the Tampa, Florida area. Values of transmissivity = 164,000 ft 2 /day and leakance = 4.9 X 10 ‐3 day ‐1 were determined for the Upper Floridan aquifer from distance‐drawdown and canal flowrate data. These values compare favorably with values of transmissivity and leakance determined from pumping tests and a digital model study in the same area.