Welcome to the website of the HydroGeophysics Group (HGG). HGG is a large and highly skilled research group at the Department of Geoscience, Aarhus University, Denmark, working primarily with hydrogeophysics. The research covers many aspects of hydrogeophysics: instrument development, data collection, processing and inversion algorithms, software development, as well as integration of the geophysics results into geological and hydrological models.
Contact the HydroGeophysics Group: email@example.com
Strictly horizontal lateral parameter correlation for 1D inverse modelling of large datasets
Near Surface Geophysics, 2016, 14, N.B. Christensen pdf
Fast approximate 1D modelling and inversion of transient electromagnetic data
Geophysical Prospecting, 2016, 64, N.B. Christensen pdf
A Geological Model of Pillemark, Samsø Based on a Combined Interpretation of DCIP, GCM and TEM Data,
Andy Heineth, Master's thesis pdf
An analysis of Cole-Cole parameters for time-domain DC and IP data using Markov chain Monte Carlo,
Line Meldgaard Madsen, Master's thesis pdf
TEM Modelling and inversion of conductive thin sheets,
Thomas Schrøder Daugbjerg, Master's thesis pdf
Improved processing and inversion of Ellog data with full sampled waveform,
Helle Holm, Master's thesis pdf
A Noise Analysis of Shielded and Unshielded Receiver Loops for the Magnetic Resonance Sounding Method,
Simon Rejkjær, Master's thesis pdf
Increasing the resolution and the signal-to-noise ratio of magnetic resonance sounding data using a central loop configuration,
Geophysical Journal International, 2016, 205, 13. 2016, Behroozmand, A. A., E. Auken, G. Fiandaca, and S. Rejkjaer. pdf
Effect of electrode shape on grounding resistances — Part 2: Experimental results and cryospheric monitoring,
Geophysics, 81, 1, 14. 2016, Tomaškovicová, S., T. Ingeman-Nielsen, A. V. Christiansen, I. Brandt, T. Dahlin, and B. Elberling. pdf
Artificial neural networks for removal of couplings in airborne transient electromagnetic data,
Geophysical Prospecting, 2016, 64, 9. 2015, Andersen, K. A., C. Kirkegaard, N. Foged, A. V. Christiansen, and E. Auken. pdf
An overview of a highly versatile forward and stable inverse algorithm for airborne, ground-based and borehole electromagnetic and electric data,
Exploration Geophysics, 2015, 46, 223-235. 2015, Auken, E., A. V. Christiansen, G. Fiandaca, C. Schamper, A. A. Behroozmand, A. Binley, E. Nielsen, F. Effersø, N. B. Christensen, K. I. Sørensen, N. Foged, and G. Vignoli. pdf
A comparison of helicopter-borne electromagnetic systems for hydrogeologic studies,
Geophysical Prospecting, 2015, 1-24. 2015, Bedrosian., P., C. Schamper, and E. Auken. pdf
Airborne and ground-based transient electromagnetic mapping of groundwater salinity in the Machile-Zambezi Basin, southwestern Zambia,
Near Surface Geophysics, 13, 383-395. 2015, Chongo.M, A. V. Christiansen, A. Tembo, K. E. Banda, I. A. Nyambe, F. Larsen, and P. Bauer-Gottwein. pdf
Mapping localised freshwater anomalies in the brackish paleo-lake sediments of the Machile-Zambezi Basin with transient electromagnetic sounding, geoelectrical imaging and induced polarisation,
Journal of Applied Geophysics, 2015, 123, 81-92. 2015, Chongo.M, A. V. Christiansen, G. Fiandaca, I. A. Nyambe, F. Larsen, and P. Bauer-Gottwein. pdf
An efficient hybrid scheme for fast and accurate inversion of airborne transient electromagnetic data,
Exploration Geophysics, 1-8. 2015, Christiansen, A. V., E. Auken, C. Kirkegaard, C. Schamper, and G. Vignoli. pdf
Field scale time-domain spectral induced polarization monitoring of geochemical changes induced by injected CO2 in a shallow aquifer,
Geophysics, 80, 2, WA113-WA126. 2015, Doetsch, J., G. Fiandaca, E. Auken, A. V. Christiansen, A. G. Cahill, and J. D. Jacobsen. pdf
Direct current (DC) resistivity and induced polarization (IP) monitoring of active layer dynamics at high temporal resolution,
Cold Regions Science and Technology, 119, 16-28. 2015, Doetsch, J., T. Ingemann-Nielsen, A. V. Christiansen, G. Fiandaca, E. Auken, and B. Elberling. pdf
Performance evaluation of groundwater model hydrostratigraphy from airborne electromagnetic data and lithological borehole logs,
HESS, 19, 3875-3890. 2015, Marker, P. A., N. Foged, X. He, A. V. Christiansen, A. Refsgaard, E. Auken, and P. Bauer-Gottwein. pdf
Deep groundwater and potential subsurface habitats beneath an Antarctic dry valley,
Nature Communications, 6, 2015, Mikucki, J. A., E. Auken, S. Tulaczyk, R. A. Virginia, C. Schamper, K. I. Sørensen, P. T. Doran, H. Dugan, and N. Foley. pdf
Measuring time-domain spectral induced polarization in the on-time:decreasing acquisition time and increasing signal-to-noise ratio,
Journal of Applied Geophysics, 2015, 123, 6. 2015, Olsson, P. I., T. Dahlin, G. Fiandaca, and E. Auken. pdf
Integrated interpretation of helicopter and ground-based geophysical data recorded within the Okavango Delta, Botswana,
Journal of Applied Geophysics, 2015, 114, 52-67. 2015, Podgorski, J. E., A. G. Green, T. Kalscheuer, W. Kinzelbach, H. Horstmeyer, H. Maurer, L. Rabenstein, J. Doetsch, E. Auken, T. Ngwisanyi, G. Tshoso, B. C. Jaba, O. Ntibinyane, and K. Laletsang. pdf
Sharp spatially constrained inversion with applications to transient electromagnetic data,
Geophysical Prospecting, 63, 1, 243-255. 2015, Vignoli, G., G. Fiandaca, A. V. Christiansen, C. Kirkegaard, and E. Auken. pdf
A new study providing an unprecedented regional view of the earth’s crust beneath Yellowstone National Park will begin with a helicopter electromagnetic and magnetic (HEM) survey on November 7, 2016. A new study providing an unprecedented regional view of the earth’s crust beneath Yellowstone National Park will begin with a helicopter electromagnetic and magnetic (HEM) survey on November 7, 2016.
Read the article here.
HGG is proud to have hosted the 4TH INTERNATIONAL WORKSHOP ON INDUCED POLARIZATION from 6-8 June 2016.
Thanks to all who participated in the 4th International Workshop on Induced Polarization in Aarhus!
Read more here
The HydroGeophysics Group is proud to have hosted the
- read more
Article in Videnskab.dk:
Dansk forskning er helt i front, når det gælder kortlægning af grundvandet. I alt er lidt mere end 40 procent af det danske land netop kortlagt med henblik på grundvandet.
HGG in Yellowstone has gone viral...
All the major networks and newspapers in the US are featuring the story about groundwater mapping in Yellowstone.
See the list here.
Planen om, at man afløser de konstant kørende afværgeforanstaltninger ved Pillemark Losseplads på Samsø med monitering og mulighed for at skride ind, hvis det bliver nødvendigt, vækker bekymring for grundvandskvaliteten på Samsø. Der planlægges et borgermøde, hvor samsingerne skal diskutere og tage stilling til projektets planer.
Watch it here on YouTube.
Using a novel, helicopter-borne sensor to penetrate the surface of large swathes of terrain, a team of researchers supported by the National Science Foundation (NSF) has gathered compelling evidence that beneath Antarctica's ice-free McMurdo Dry Valleys lies a salty aquifer that may support previously unknown microbial ecosystems and retain evidence of ancient climate change.
Watch the US National Science Foundation video here on YouTube!
Read the article here.
The article has generated widespread media attention - see below:
Danish Radio has interviewed Professor Esben Auken from the Hydrogeophysics Group about the results of the Antarctica project. Read the inverview here (in Danish) and watch the video!
Jill Mikucki, a microbiology assistant professor, was part of a team that detected extensive salty groundwater networks in Antarctica using a novel airborne electromagnetic mapping sensor system called SkyTEM. The hidden interconnected lakes could sustain life and shed light on ancient climate change. They also may provide the basis for future exploration of a subsurface habitat on Mars.
Numerous national and international media outlets also featured the research, including the ABC Science, Christian Science Monitor, Huffington Post, Discovery, Daily Mail, the Verge, New Scientist, Business Insider Australia, Business Standard, Yahoo! News, International Business Times, Irish Examiner, Science Mag, Phys.org, Silicon Republic, and Knoxville News Sentinel.
Helicopter-borne instrument shows what lies beneath Antarctica's ice-free Dry Valleys. Using a novel, helicopter-borne sensor to penetrate the surface of large swathes of terrain, a team of researchers supported by the National Science Foundation (NSF) has gathered compelling evidence that beneath Antarctica's ice-free McMurdo Dry Valleys lies a salty aquifer that may support previously unknown microbial ecosystems and retain evidence of ancient climate change. Read more here.
In early December 4 scientists from the airborne division of the China Geological Survey visited Aarhus University, GEUS and SkyTEM Surveys to discuss groundwater resource mapping in China using Danish technology.