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 …

The transient electromagnetic method

AV Christiansen, E Auken, K Sørensen - Groundwater geophysics: a tool …, 2006 - Springer
The transient electromagnetic (TEM) method has been developed and refined most
intensively since the mid-1980s. This makes the method relatively “young” compared to the …

Applications of electrical and electromagnetic methods for environmental and geotechnical investigations

L Pellerin - Surveys in Geophysics, 2002 - Springer
Electrical and electromagnetic methods are powerful tools in environmentaland
geotechnical investigations. Techniques developed for deeper applications, such as mining …

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 …

Machine learning based fast forward modelling of ground-based time-domain electromagnetic data

TS Bording, MR Asif, AS Barfod, JJ Larsen… - Journal of Applied …, 2021 - Elsevier
Inversion of large-scale time-domain electromagnetic surveys are computationally
expensive and time consuming. Deterministic or probabilistic inversion schemes usually …

An integrated approach for hydrogeophysical investigations: new technologies and a case history

KI Sørensen, E Auken… - Near-surface …, 2005 - pubs.geoscienceworld.org
The use of geophysical methods for hydrogeological investigations has, during the last two
decades, attracted much attention. The goal of a hydrogeological investigation is to construct …

Electromagnetic induction methods for environmental problems

DV Fitterman, VF Labson - 2005 - pubs.geoscienceworld.org
Introduction Electromagnetic methods have a special place in the arsenal of geophysical
tools available for environmental investigations. They owe their status to five factors. First …

Accelerated 2.5-D inversion of airborne transient electromagnetic data using reduced 3-D meshing

KW Engebretsen, B Zhang, G Fiandaca… - Geophysical Journal …, 2022 - academic.oup.com
Airborne systems collecting transient electromagnetic data are able to gather large amounts
of data over large areas in a very short time. These data are most often interpreted through 1 …

Inverting airborne electromagnetic (AEM) data with Zohdy's method

D Sattel - Geophysics, 2005 - library.seg.org
Zohdy's method for the inversion of dc-resistivity data has been adapted to the inversion of
airborne electromagnetic (AEM) data. AEM responses are first transformed into apparent …