Determination of unconfined aquifer hydraulic properties from recovery test data

Xun-Hong Chen

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper analyzes the sensitivity of drawdown to four hydraulic parameters in unconfined aquifers: horizontal and vertical hydraulic conductivity K(r) and K(z), storage coefficient S, and specific yield S(y). Sensitivity coefficients indicate that the sensitivity varies with time for each aquifer parameter, and K(r), K(z), S, and S(y) are identifiable from recovery test data. An inverse method was used to calculate the four parameters from residual drawdowns. Results of application examples demonstrate that residual data provide valid information in the determination of unconfined aquifer hydraulic parameters.

Original languageEnglish (US)
Pages (from-to)983-990
Number of pages8
JournalJournal of the American Water Resources Association
Volume35
Issue number4
DOIs
StatePublished - Jan 1 1999

Fingerprint

unconfined aquifer
hydraulic property
Aquifers
Hydraulics
Recovery
drawdown
Hydraulic conductivity
hydraulics
hydraulic conductivity
aquifer
test
parameter

Keywords

  • Hydraulic parameters
  • Pumping and recovery test
  • Residual drawdown
  • Unconfined aquifer

ASJC Scopus subject areas

  • Ecology
  • Water Science and Technology
  • Earth-Surface Processes

Cite this

Determination of unconfined aquifer hydraulic properties from recovery test data. / Chen, Xun-Hong.

In: Journal of the American Water Resources Association, Vol. 35, No. 4, 01.01.1999, p. 983-990.

Research output: Contribution to journalArticle

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