An overview of a highly versatile forward and stable inverse algorithm for airborne, ground-based and borehole electromagnetic and electric data

E Auken, AV Christiansen, C Kirkegaard… - Exploration …, 2015 - Taylor & Francis
We present an overview of a mature, robust and general algorithm providing a single
framework for the inversion of most electromagnetic and electrical data types and instrument …

A review of helicopter‐borne electromagnetic methods for groundwater exploration

B Siemon, AV Christiansen… - Near Surface Geophysics, 2009 - Wiley Online Library
For about three decades, airborne electromagnetic (AEM) systems have been used for
groundwater exploration purposes. Airborne systems are appropriate for large‐scale and …

[KNYGA][B] Groundwater geophysics: a tool for hydrogeology

R Kirsch - 2006 - Springer
Buried valleys are underground structures typical for areas affected by glaciations.
Especially when the glaciers met poorly consolidated ground, ie in sedimentary basins …

Quasi-3D modeling of airborne TEM data by spatially constrained inversion

A Viezzoli, AV Christiansen, E Auken, K Sørensen - Geophysics, 2008 - library.seg.org
We present a new methodology, spatially constrained inversion (SCI), that produces quasi-
3D conductivity modeling of electromagnetic (EM) data using a 1D forward solution. Spatial …

A survey of current trends in near-surface electrical and electromagnetic methods

E Auken, L Pellerin, NB Christensen, K Sørensen - Geophysics, 2006 - library.seg.org
Electrical and electromagnetic (E&EM) methods for near-surface investigations have
undergone rapid improvements over the past few decades. Besides the traditional …

Sharp spatially constrained inversion with applications to transient electromagnetic data

G Vignoli, G Fiandaca, AV Christiansen… - Geophysical …, 2015 - earthdoc.org
Time‐domain electromagnetic data are conveniently inverted by using smoothly varying 1D
models with fixed vertical discretization. The vertical smoothness of the obtained models …

[HTML][HTML] Comparison of novel semi-airborne electromagnetic data with multi-scale geophysical, petrophysical and geological data from Schleiz, Germany

A Steuer, M Smirnova, M Becken, M Schiffler… - Journal of Applied …, 2020 - Elsevier
In the framework of the Deep Electromagnetic Sounding for Mineral EXploration (DESMEX)
project, we carried out multiple geophysical surveys from regional to local scales in a former …

Spatially constrained inversion for quasi 3D modelling of airborne electromagnetic data–an application for environmental assessment in the Lower Murray Region of …

A Viezzoli, E Auken, T Munday - Exploration Geophysics, 2009 - Taylor & Francis
We present an application of spatially constrained inversion (SCI) of SkyTEM (airborne
electromagnetic) data for defining spatial patterns of salinisation in the Bookpurnong …

Application of 3-D electromagnetic inversion in practice: challenges, pitfalls and solution approaches

MP Miensopust - Surveys in Geophysics, 2017 - Springer
In recent years, three-dimensional (3-D) inversion of electromagnetic (EM) data gained a lot
of attention and the number of 3-D EM case studies has increased. Many publications …

Large-scale, probabilistic salinity map** using airborne electromagnetics for groundwater management in Zeeland, the Netherlands

JR Delsman, ES Van Baaren, B Siemon… - Environmental …, 2018 - iopscience.iop.org
Seawater intrusion has often resulted in scarce fresh groundwater resources in coastal
lowlands. Careful management is essential to avoid the overexploitation of these vulnerable …