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A Method to Determine the Formation Constants of Leaky Aquifers, and Its Application to Pumping Test Data
Author(s) -
Kohlbeck F.,
Alvarez A.
Publication year - 1991
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.1745-6584.1991.tb00533.x
Subject(s) - aquifer , drawdown (hydrology) , aquifer test , aquifer properties , minification , leakage (economics) , test data , geology , mathematics , soil science , petroleum engineering , groundwater , computer science , geotechnical engineering , mathematical optimization , groundwater recharge , economics , macroeconomics , programming language
. A method to calculate aquifer transmissivity, storage coefficient, and the leakage coefficient from pumping test data for a leaky aquifer is presented. The method is carried out by a computer program and is based on a minimization of the sum of squares of differences between drawdown in the observation well and the theoretical values from the Hantush and Jacob formula. No user defined starting points are necessary. Random error estimates for the parameters are given. Applications of the method are illustrated using data from pumping tests performed in leaky aquifers at the Cauca River Valley, Colombia.