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 …

Uncertainty and resolution analysis of 2D and 3D inversion models computed from geophysical electromagnetic data

Z Ren, T Kalscheuer - Surveys in Geophysics, 2020 - Springer
A meaningful solution to an inversion problem should be composed of the preferred
inversion model and its uncertainty and resolution estimates. The model uncertainty …

tTEM—A towed transient electromagnetic system for detailed 3D imaging of the top 70 m of the subsurface

E Auken, N Foged, JJ Larsen, KVT Lassen, PK Maurya… - Geophysics, 2019 - library.seg.org
There is a growing need for detailed investigation of the top 30–50 m of the subsurface,
which is critical for infrastructure, water supply, aquifer storage and recovery, farming, waste …

Deep groundwater and potential subsurface habitats beneath an Antarctic dry valley

JA Mikucki, E Auken, S Tulaczyk, RA Virginia… - Nature …, 2015 - nature.com
The occurrence of groundwater in Antarctica, particularly in the ice-free regions and along
the coastal margins is poorly understood. Here we use an airborne transient …

Detailed landfill leachate plume mapping using 2D and 3D electrical resistivity tomography-with correlation to ionic strength measured in screens

PK Maurya, VK Rønde, G Fiandaca, N Balbarini… - Journal of Applied …, 2017 - Elsevier
Leaching of organic and inorganic contamination from landfills is a serious environmental
problem as surface water and aquifers are affected. In order to assess these risks and …

Surface parameters and bedrock properties covary across a mountainous watershed: Insights from machine learning and geophysics

S Uhlemann, B Dafflon, HM Wainwright… - Science …, 2022 - science.org
Bedrock property quantification is critical for predicting the hydrological response of
watersheds to climate disturbances. Estimating bedrock hydraulic properties over watershed …

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 …

A review of airborne electromagnetic methods with focus on geotechnical and hydrological applications from 2007 to 2017

E Auken, T Boesen, AV Christiansen - Advances in geophysics, 2017 - Elsevier
The purpose of this review is to report the major advancements that have been made within
the area of airborne electromagnetics (AEM) between 2007 and 2017, with a focus on …

Large scale mapping of fractures and groundwater pathways in crystalline hardrock by AEM

S Chandra, E Auken, PK Maurya, S Ahmed… - Scientific Reports, 2019 - nature.com
In hardrocks that cover about 20% of the Earth's surface, it is difficult to locate steady sources
for groundwater due to inadequate understanding of the fracture networks. A comprehensive …

[HTML][HTML] Controls on flood managed aquifer recharge through a heterogeneous vadose zone: hydrologic modeling at a site characterized with surface geophysics

Z Perzan, G Osterman, K Maher - Hydrology and Earth System …, 2023 - hess.copernicus.org
In water-stressed regions of the world, managed aquifer recharge (MAR), the process of
intentionally recharging depleted aquifers, is an essential tool for combating groundwater …