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Identification of groundwater parameters at Columbus, Mississippi, using a 3D inverse flow and transport model

January 1, 1996

An extensive amount of data including hydraulic heads, hydraulic conductivities and concentrations of several solutes from controlled injections have been collected during the MADE 1 and MADE 2 experiments at a heterogeneous site near Columbus, Mississippi. In this paper the use of three-dimensional inverse groundwater models including simultaneous estimation of flow and transport parameters is proposed to help identify the dominant characteristics at the site. Simulations show that using a hydraulic conductivity distribution obtained from 2187 borehole flowmeter tests directly in the model produces poor matches to the measured hydraulic heads and tritium concentrations. Alternatively, time averaged hydraulic head maps are used to define zones of constant hydraulic conductivity to be estimated. Preliminary simulations suggest that in the case of conservative transport many, but not all, of the major plume characteristics can be explained by large-scale heterogeneity in recharge and hydraulic conductivity.

Citation Information

Publication Year 1996
Title Identification of groundwater parameters at Columbus, Mississippi, using a 3D inverse flow and transport model
DOI
Authors H.C. Barlebo, D. Rosbjerg, M. C. Hill
Publication Type Article
Publication Subtype Journal Article
Series Title IAHS-AISH Publication
Series Number
Index ID 70018603
Record Source USGS Publications Warehouse
USGS Organization