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

IAHS-AISH Publication

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Abstract

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.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Identification of groundwater parameters at Columbus, Mississippi, using a 3D inverse flow and transport model
Series title:
IAHS-AISH Publication
Volume
237
Year Published:
1996
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
189
Last page:
208
Number of Pages:
20