Closed loop hydrogeophysical inversion of time-lapse GPR data to determine hydraulic properties of a sandy soil

Evert Slob, Sébastien Lambot, Jon Rhebergen, Olga Lopera, Harry Vereecken

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A closed loop hydrogeophysical inversion procedure has been developed and tested in an outdoor test site facility to investigate its effectiveness in reconstructing hydraulic properties of a sandy soil under controlled conditions. We use global optimization followed by a local routine, which involves a large number of forward models to be computed. Forward model computation speed up was established up to one order of magnitude. The final results show that the parameters describing the water content profile are well estimated, but the obtained hydraulic conductivity seems to correspond to the value excluding macropore flow.

Original languageEnglish
Title of host publication78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008
PublisherSociety of Exploration Geophysicists
Pages1183-1187
Number of pages5
Volume27
Edition1
ISBN (Print)9781605607856
DOIs
Publication statusPublished - Jan 2008
Event78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008 - Las Vegas, United States
Duration: 9 Nov 200814 Nov 2008

Publication series

Name78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008

Conference

Conference78th Society of Exploration Geophysicists International Exposition and Annual Meeting, SEG 2008
Country/TerritoryUnited States
CityLas Vegas
Period9/11/0814/11/08

Keywords

  • Dynamic
  • GPR
  • Hydrology
  • Inversion
  • Monitoring

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