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Identifying the parameters of an aquifer cell model
Author(s) -
Hefez E.,
Shamir U.,
Bear J.
Publication year - 1975
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr011i006p00993
Subject(s) - aquifer , identification (biology) , calibration , sensitivity (control systems) , quadratic equation , geology , soil science , computer science , environmental science , hydrology (agriculture) , mathematics , geotechnical engineering , groundwater , statistics , engineering , botany , geometry , electronic engineering , biology
Cell models are commonly used for forecasting water levels in aquifers. Calibration of such models is achieved through identification of their parameter values, the transmissivities and storativities of all cells, using historical data. Several methods of formulating the identification as a linear or quadratic programing problem are presented. Examples are given, results of the various methods compared, and the sensitivity of these results to errors in the data is discussed. Inflows or outflows during historical periods may also be determined by the same methods; an example for a real aquifer is presented.