Articles | Volume 27, issue 16
https://doi.org/10.5194/hess-27-3115-2023
https://doi.org/10.5194/hess-27-3115-2023
Technical note
 | 
28 Aug 2023
Technical note |  | 28 Aug 2023

Technical note: High-density mapping of regional groundwater tables with steady-state surface nuclear magnetic resonance – three Danish case studies

Mathias Vang, Denys Grombacher, Matthew P. Griffiths, Lichao Liu, and Jakob Juul Larsen

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Cited articles

Auken, E., Christiansen, A. V., Kirkegaard, C., Fiandaca, G., Schamper, C., Behroozmand, A. A., Binley, A., Nielsen, E., Effersø, F., Christensen, N. B., Sørensen, K., Foged, N., and Vignoli, G.: An overview of a highly versatile forward and stable inverse algorithm for airborne, ground-based and borehole electromagnetic and electric data, Explor. Geophys., 46, 223–235, https://doi.org/10.1071/EG13097, 2015. a
Auken, E., Foged, N., Larsen, J. J., Lassen, K. V. T., Maurya, P. K., Dath, S. M., and Eiskjær, T. T.: tTEM – A towed transient electromagnetic system for detailed 3D imaging of the top 70 m of the subsurface, Geophysics, 84, E13–E22, https://doi.org/10.1190/geo2018-0355.1, 2019. a
Behroozmand, A. A., Auken, E., Fiandaca, G., and Christiansen, A. V.: Improvement in MRS parameter estimation by joint and laterally constrained inversion of MRS and TEM data, Geophysics, 77, WB191–WB200, https://doi.org/10.1190/geo2011-0404.1, 2012. a, b, c
Behroozmand, A. A., Teatini, P., Pedersen, J. B., Auken, E., Tosatto, O., and Christiansen, A. V.: Anthropogenic wetlands due to over-irrigation of desert areas: a challenging hydrogeological investigation with extensive geophysical input from TEM and MRS measurements, Hydrol. Earth Syst. Sci., 21, 1527–1545, https://doi.org/10.5194/hess-21-1527-2017, 2017. a
Bevan, M. J., Endres, A. L., Rudolph, D. L., and Parkin, G.: A field scale study of pumping-induced drainage and recovery in an unconfined aquifer, J. Hydrol., 315, 52–70, 2005. a
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Short summary
In this paper, we use a novel surface nuclear magnetic resonance (SNMR) method for rapid high-quality data acquisition. The SNMR results from more than 100 soundings in three different case studies were used to map groundwater. The soundings successfully track the water table through the three areas and are compared to boreholes and other geophysical measurements. The study highlights the use of SNMR in hydrological surveys and as a tool for regional mapping of the water table.
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