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Related Experiment Videos

Aquifer parameter estimation from surface resistivity data.

Sri Niwas1, Olivar A L de Lima

  • 1Department of Earth Sciences, Indian Institute of Technology, Roorkee-247667, India. srsnpfes@iitr.ernet.in

Ground Water
|January 21, 2003
PubMed
Summary

Surface geoelectrical sounding data can estimate aquifer hydraulic parameters beyond groundwater exploration. This study develops analytical equations for saline and fresh water, linking electrical and hydraulic properties for better aquifer characterization.

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Area of Science:

  • Geophysics
  • Hydrogeology

Background:

  • Surface geoelectrical sounding is primarily used for groundwater exploration.
  • Aquifer hydraulic parameter estimation often relies on direct measurements or complex models.

Purpose of the Study:

  • To explore the additional use of surface geoelectrical sounding data for aquifer hydraulic parameter estimation.
  • To develop analytical equations linking electrical and hydraulic properties of aquifers.
  • To provide a more confident method for estimating hydraulic parameters.

Main Methods:

  • Development of approximated analytical equations for saline and fresh water saturations in a mesoscopic framework.
  • Discussion of existing aquifer models (clean and shaley sandstones) and their electrical-hydraulic linkages.
  • Proposal of a general aquifer model and derivation of analytical relations at a macroscopic scale.

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Main Results:

  • Analytical equations derived for mesoscopic and macroscopic scales, providing physical insight.
  • Established linkage between electrical and hydraulic properties for aquifer characterization.
  • Demonstrated higher confidence in hydraulic parameter estimation from electrical parameters.

Conclusions:

  • Surface geoelectrical sounding data offers valuable insights beyond groundwater exploration for aquifer hydraulic parameter estimation.
  • The developed analytical relations provide a robust framework for estimating hydraulic parameters.
  • Understanding the electrical-hydraulic linkage is crucial for accurate aquifer assessment.