GPR full-waveform inversion of horizontal ZOP borehole data using GprMax

A. Klotzsche, J. Van Der Kruk, Guowei He, H. Vereecken

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Full-waveform inversion of GPR data has shown a high potential in many applications to obtain accurate and quantitative high resolution images of the subsurface. We implemented a new full-waveform inversion that combines an accurate 3D forward modeling approach with a shuffled complex evolution method that incorporates the complicated wave interactions and interferences that cannot be resolved by standard processes. This new approach is applied to zero-offset profile GPR data that were acquired in horizontal boreholes to monitor soil water content and water uptake by roots under different soil and treatment conditions. Using standard ray-based processing methods, the determined permittivity values close to the surface were not reliable due to interferences from the critically refracted air wave and the direct wave through the subsurface. Synthetic studies showed that traces at depths 0.1 m and 0.2 m are affected by these interferences and hence no reliable permittivity values and soil water content values can be obtain by standard ray-based approaches. The new full-waveform inversion was used to obtain reliable permittivity and soil water content results for three different treatment plots and six different depth positions between 0.06-1.16m of the horizontal boreholes. The inverted results show a good fit with the observed data and quantitative permittivity results were obtained for all depths.

Original languageEnglish (US)
Title of host publicationProceedings of 2016 16th International Conference of Ground Penetrating Radar, GPR 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509051816
DOIs
StatePublished - Sep 20 2016
Event16th International Conference of Ground Penetrating Radar, GPR 2016 - Hong Kong, Hong Kong
Duration: Jun 13 2016Jun 16 2016

Other

Other16th International Conference of Ground Penetrating Radar, GPR 2016
CountryHong Kong
CityHong Kong
Period6/13/166/16/16

Fingerprint

Ground penetrating radar systems
boreholes
Boreholes
soils
waveforms
Permittivity
permittivity
inversions
Water content
moisture content
Soils
interference
rays
wave interaction
Image resolution
plots
high resolution
air
Processing
profiles

Keywords

  • Full-waveform inversion
  • Hydrogeophysics
  • Shuffle complex evolution
  • Source wavelet estimation

ASJC Scopus subject areas

  • Signal Processing
  • Instrumentation

Cite this

Klotzsche, A., Van Der Kruk, J., He, G., & Vereecken, H. (2016). GPR full-waveform inversion of horizontal ZOP borehole data using GprMax. In Proceedings of 2016 16th International Conference of Ground Penetrating Radar, GPR 2016 [7572695] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICGPR.2016.7572695

GPR full-waveform inversion of horizontal ZOP borehole data using GprMax. / Klotzsche, A.; Van Der Kruk, J.; He, Guowei; Vereecken, H.

Proceedings of 2016 16th International Conference of Ground Penetrating Radar, GPR 2016. Institute of Electrical and Electronics Engineers Inc., 2016. 7572695.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Klotzsche, A, Van Der Kruk, J, He, G & Vereecken, H 2016, GPR full-waveform inversion of horizontal ZOP borehole data using GprMax. in Proceedings of 2016 16th International Conference of Ground Penetrating Radar, GPR 2016., 7572695, Institute of Electrical and Electronics Engineers Inc., 16th International Conference of Ground Penetrating Radar, GPR 2016, Hong Kong, Hong Kong, 6/13/16. https://doi.org/10.1109/ICGPR.2016.7572695
Klotzsche A, Van Der Kruk J, He G, Vereecken H. GPR full-waveform inversion of horizontal ZOP borehole data using GprMax. In Proceedings of 2016 16th International Conference of Ground Penetrating Radar, GPR 2016. Institute of Electrical and Electronics Engineers Inc. 2016. 7572695 https://doi.org/10.1109/ICGPR.2016.7572695
Klotzsche, A. ; Van Der Kruk, J. ; He, Guowei ; Vereecken, H. / GPR full-waveform inversion of horizontal ZOP borehole data using GprMax. Proceedings of 2016 16th International Conference of Ground Penetrating Radar, GPR 2016. Institute of Electrical and Electronics Engineers Inc., 2016.
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