A structured approach for calibrating steady-state ground-water flow models

Tian-Chyi J Yeh, Peter A. Mock

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A structured approach for calibrating two-dimensional, steady-state ground-water flow models is developed. The first step of the proposed approach is to replace the heterogeneous aquifer with an equivalent homogeneous one using the geometric mean of transmissivities. Then, boundary conditions are adjusted with the aid of a scattergram to reduce bias of the simulated hydraulic head distribution of the equivalent homogeneous aquifer. After the bias is removed, the differences between the simulated mean by hydraulic head and the observed hydraulic head, resulting from small-scale heterogeneities, are then reduced by adjustment of local transmissivity values based on hydrological and geological information. The validity of the proposed procedure was tested for a hypothetical aquifer under idealized conditions and it was then applied to the Avra Valley in southern Arizona to demonstrate its utility in real world scenarios.

Original languageEnglish (US)
Pages (from-to)444-450
Number of pages7
JournalGround Water
Volume34
Issue number3
StatePublished - May 1996
Externally publishedYes

Fingerprint

Groundwater flow
hydraulic head
Aquifers
groundwater flow
Hydraulics
transmissivity
aquifer
boundary condition
Boundary conditions
valley

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Water Science and Technology

Cite this

A structured approach for calibrating steady-state ground-water flow models. / Yeh, Tian-Chyi J; Mock, Peter A.

In: Ground Water, Vol. 34, No. 3, 05.1996, p. 444-450.

Research output: Contribution to journalArticle

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