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Abstract

Summary

We present a study using a novel Floating Transient ElectroMagnetic (FloaTEM, [ ]) method to identify the riverbed heterogeneity of the Ganges and Varuna River in India. The geophysics gives a detailed 2D image of the subsurface resistivity structures down to 100 m depth on a scale of several tens of kilometres. The images presented here were obtained within a few days of mapping providing a unique insight in the hydrogeological setting of the rivers. This information that can be used for groundwater management with respect to assessing aquifer geometry, investigate suitable sites for managed aquifer recharge and inform about potential groundwater-surface dynamics. The river water conductivity is measured by a probe as well as the water column thickness. The conductivity can be used to inform about water quality and the water column thickness can be used as prior information for inversion.

© EAGE Publications BV
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/content/papers/10.3997/2214-4609.202520206
2025-09-07
2026-02-15

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References

  1. John W.Lane, Martin A.Briggs, Pradip K.Maurya, Eric A.White, Jesper B.Pedersen, EsbenAuken, NeilTerry, BurkeMinsley, WadeKress, Denis R.LeBlanc, RyanAdams and Carole D.Johnson [2020] Characterizing the diverse hydrogeology underlying rivers and estuaries using new floating transient electromagnetic methodology, Science of The Total Environment, Volume 740, 140074.
     [Google Scholar]
  2. Pradip KumarMaurya, Frederik ErstedChristensen, Masson AndyKass, Jesper B.Pedersen, Rasmus R.Frederiksen, NikolajFoged, Anders VestChristiansen, and EsbenAuken [2022] Technical note: Efficient imaging of hydrological units below lakes and fjords with a floating, transient electromagnetic (FloaTEM) system, HESS, Volume 26, Issue 1.
     [Google Scholar]
  3. Viezzoli, A., A. V.Christiansen, E.Auken, and K. I.Sørensen [2008] Quasi-3D modeling of airborne TEM data by Spatially Constrained Inversion, Geophysics, 73, 3, F105–F113.
     [Google Scholar]
  4. Christiansen, A. V., and E.Auken [2012] A global measure for depth of investigation, Geophysics, 77, 4, WB171–WB177.
     [Google Scholar]
/content/papers/10.3997/2214-4609.202520206
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Mapping the Riverbed Heterogeneity of the Ganges and Varuna River using a Floating TEM System
Conference Proceedings 2025, 1 (2025); https://doi.org/10.3997/2214-4609.202520206
/content/papers/10.3997/2214-4609.202520206
/content/papers/10.3997/2214-4609.202520206
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