Identifying groundwater pumping source information using simulated annealing

Yu Chung Lin, Hund-Der Yeh*

*Corresponding author for this work

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

This study develops an approach referred to as SA-MF using simulated annealing (SA) and a three-dimensional groundwater flow model (MODFLOW-2000) to determine the pumping source information, namely the pumping source location, the pumping rate and the pumping period. Eight scenarios, each with various cases for aquifers with homogeneous or heterogeneous conductivities, are used to test the applicability and accuracy of SA-MF in determining the pumping source information. The results show that at least five measured heads should be used to analyse the pumping source identification problem and at least three observation wells are required to effectively determine the pumping source information. The SA-MF gives good estimated results in both synthetic and real problems even if the measured heads contain measurement errors.

Original languageEnglish
Pages (from-to)3010-3019
Number of pages10
JournalHydrological Processes
Volume22
Issue number16
DOIs
StatePublished - 30 Jul 2008

Keywords

  • Groundwater
  • Heuristic approach
  • Inverse problem
  • Pumping source identification
  • Simulated annealing

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