GPR data inversion for vegetation layer

M. R. Ardekani, X. Neyt, M. Nottebaere, D. Jacques, S. Lambot

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

Abstract

In this paper, we developed a vegetation cover model for full-wave inversion of ground-penetrating radar (GPR) data assuming multiple layers with effective electrical properties. Measurements were performed in the laboratory conditions over spelt wheat grown in a sandy soil, using a stepped-frequency continuous-wave GPR system. In order to control the sand surface water content, a water table was fixed at 20 cm depth as well as time domain reflectometry probes at 2 and 20 cm depth were used. Measurements were performed and recorded hourly for about one month and the canopy height was measured daily. The effective electromagnetic properties of the vegetation layer were modeled using a complex refractive index model combined with a single Debye relaxation model. A scattering loss parameter was included in the electromagnetic full-wave GPR model for the vegetation layer. The measurements resulted in a strong link between the scattering losses of the vegetation cover and canopy height (generally, the biomass structure), which is expected to strongly influence the soil moisture values (measured with GPR) in presence of vegetation cover.

Original languageEnglish
Title of host publicationProceedings of the 15th International Conference on Ground Penetrating Radar, GPR 2014
EditorsSebastien Lambot, Antonis Giannopoulos, Lara Pajewski, Frederic Andre, Evert Slob, Christophe Craeye
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages170-175
Number of pages6
ISBN (Electronic)9781479967896
DOIs
Publication statusPublished - 1 Dec 2014
Event15th International Conference on Ground Penetrating Radar, GPR 2014 - Brussels, Belgium
Duration: 30 Jun 20144 Jul 2014

Publication series

NameProceedings of the 15th International Conference on Ground Penetrating Radar, GPR 2014

Conference

Conference15th International Conference on Ground Penetrating Radar, GPR 2014
Country/TerritoryBelgium
CityBrussels
Period30/06/144/07/14

Keywords

  • Ground-penetrating radar
  • full-wave inversion
  • soil moisture retrieval
  • vegetation model

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