Many of our research activities take place at different scales - from catchment areas to the characterization of soil pores. We have various field sites at our disposal:

Selhausen agricultural site:

Krauthausen aquifer:

Rhizotron facilities:

More information about the facility and the measurements under this link

• Mastertopic projects: High-frequency GPR full-waveform inversion to characterize soil structures inside a lysimeter
• PhenoRob field experiments

IWAGPR2025:

We had a very successful 13th International Workshop on Advanced Ground Penetrating Radar – IWAGPR2025, which took place in Thessaloniki, Greece from July 2nd to 4th 2025, and was hosted by the School of Geology and the Faculty of Sciences at the Aristotle University of Thessaloniki.

Anja Klotzsche together with Jan van der Kruk gave a Workshop on GPR Full-Waveform Inversion and presented on Imaging tracer experiments using time-lapse crosshole GPR full-waveform inversion.

Dominik Hoven gave a presentation on ‘Recent developments and possible applications of the 2.5D GPR full-waveform inversion for high resolutions subsurface imaging’.

Bingchao Li presented on Possibilities for reducing FWI calculation costs for GPR multi-offset data.

You can find the Book of Abstracts here!

DGG 2025:

In February we attended the „85. Jahrestagung Deutsche Geophysikalische Gesellschaft“ in Bochum, Germany.

Anka Klotzsche chaired the session on Near-Surface Geophysics.

Dominik Hoven gave a talk on Novel developments of the 2.5D GPR full-waveform inversion for high resolution subsurface imaging.

Sophia Schiebel gave a talk on Using crosshole GPR to monitor the impact of maize roots and nitrate fertilizer on the soil-plant continuum using crosshole GPR to monitor the impact of maize roots and nitrate fertilizer on the soil-plant continuum.

Lena Lärm presented a poster on Exploring the potential of using GPR to investigate the soil-plant continuum of maize crops.

Events Call for Abstracts AgroGeo

• Research group "Multiscale Geophysics of soil-plant systems" at JUser
• OrcID Prof.Dr.Anja Klotzsche
  
  
• Qin, Tan, et al. "Application of subset full-waveform inversion to multioffset surface ground-penetrating radar data." IEEE Transactions on Geoscience and Remote Sensing 62 (2024): 1-13.
• Lärm, L., Bauer, F.M., van der Kruk, J., Vanderborght, J., Morandage, S., Vereecken, H. Schnepf, A., & Klotzsche, A., 2023, Linking horizontal crosshole GPR variability with root image information for maize crops, VADOSE ZONE JOURNAL 23 (1), 10.1002/vzj2.20293, 2024
• Lärm L, Weihermüller L, Rödder J, van der Kruk J, Vereecken H, & Klotzsche A (2024) Spatial variability of hydraulic parameters of a cropped soil using horizontal crosshole ground penetrating radar. Vadose Zone Journal, e20389. doi: 10.1002/vzj2.20389
• Lärm, L., Bauer, F.M., Hermes, N, van der Kruk, J, Vereecken, H, Vanderborght, J, Nguyen, TH, Lopez, G, Seidel, SJ, Ewert, F, Schnepf, A, & Klotzsche, A, 2023, Multi-year belowground data of minirhizotron facilities in Selhausen, SCIENTIFIC DATA 10(1), 10.1038/s41597-023-02570-9
• Hoven, D. Mester, A., Vereecken, H. & Klotzsche, A., 2023, Evaluation of starting model approaches and effective source wavelet variations for high-frequency ground-penetrating radar full-waveform  inversion, GEOPHYSICS 88 (2), KS27 -KS45, 10.1190/GEO2021-0683.1
• Yu, Y., J.A. Huisman, A. Klotzsche, H. Vereecken, and L. Weihermüller, Coupled full-waveform inversion of horizontal borehole ground penetrating radar data to estimate soil hydraulic parameters: A synthetic study. Journal of Hydrology, 610, 127817 2022, 10.1016/j.jhydrol.2022.127817
• Schmäck, J., L. Weihermüller, A. Klotzsche, C. von Hebel, S. Pätzold, G. Welp, and H. Vereecken, Large-scale detection and quantification of harmful soil compaction in a post-mining landscape using multi-configuration electromagnetic induction. Soil Use and Management, 2021, 10.1111/sum.12763
• dal Bo, I., A. Klotzsche, R. Bol, G. Moradi, L. Weihermüller, H. Vereecken, and J. van der Kruk, GPR and EMI characterization of the hyperarid study site of Yungay, Chile: Implications of applying geophysical methods on Mars. Earth and Space Science, 8, e2021EA001790, 2021, 10.1029/2021EA001790
• Mozaffari, A., A. Klotzsche, Z. Zhou, H. Vereecken and J. van der Kruk, 3-D Electromagnetic modeling explains apparent-velocity increase in crosshole GPR data-borehole fluid effect correction method enables to incorporating high-angle traveltime data. IEEE Transactions on Geoscience and Remote Sensing, 2021, 10.1109/TGRS.2021.3107451
• Keskinen J., M. Looms, A. Klotzsche, and L. Nielsen, Practical data acquisition strategy for time-lapse experiments using crosshole GPR and full-waveform inversion. Journal of Applied Geophysics, 191, 104362 2021
• Zhou, Z., A. Klotzsche, and H. Vereecken, Improving crosshole ground-penetrating radar full-waveform inversionresults by using progressively expanded bandwidths of the data. Near Surface geophysics, 19 (4), 465-487, 2021, 10.1002/nsg.12154
• Zhou, Z., A. Klotzsche, J. Schmäck, H. Vereecken, and J. van der Kruk, Improvement of ground-penetrating radar full-waveform inversion images using cone penetration test data. Geophysics, 86 (3), H13-H25, 2021
• Yu, Y., L. Weihermüller, A. Klotzsche, L. Lärm, H. Vereecken, and J.A. Huisman, Sequential and coupled inversion of horizontal borehole ground penetrating radar data to estimate soil hydraulic properties at the field scale. Journal of Hydrology, 596, 126010, 2021
• Schaller, M., I. dal Bo, T.A. Ehlers, A. Klotzsche, R. Drews, J.P. Fuentes-Espoz, and J. van der Kruk, Comparison of regolith physical and chemical characteristics with geophysical data along a climate and ecological gradient, Chilean Coastal Cordillera (26° to 38° S). Soil, 6 (2), 629-647, 2020
• Zhou, Z., A. Klotzsche, T. Hermans, F. Nguyen, J. Schmäck, P. Haruzi, H. Vereecken, and J. van der Kruk, 3D aquifer characterization of the Hermalle-sous-Argenteau test site using crosshole GPR amplitude analysis and full-waveform inversion. Geophysics, 85 (6), H133-H148,2020
• Mozaffari, A., A. Klotzsche, C. Warren, G. He, A. Giannopoulos, H. Vereecken, and J. van der Kruk, 2.5D crosshole GPR full-waveform inversion for synthetic and measured data. Geophysics, 85 (4), 1JA-Z18, 2020
• Yu, Y., A. Klotzsche, L. Weihermüller, J.A. Huisman, J. Vanderborght, H. Vereecken, and J. van der Kruk, Estimating vertical soil water content profiles by combining horizontal borehole and dispersive surface ground penetrating radar data. Near Surface Geophysics, 18, 275-294, 2020, 10.1002/nsg.12099
• Kaufmann, M.S, A. Klotzsche, H. Vereecken, and J. van der Kruk, Simultaneous multi-channel multi-offset ground penetrating radar measurements for soil characterization. Vadose Zone Journal, 19:e20017, 2020, 10.1002/uar2.20017

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