Who are we?

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: hgg@geo.au.dk

Book the national TEM test-site

New Publications

Finite element time domain modeling of controlled-Source electromagnetic data with a hybrid boundary condition
Accepted for publication in Journal of Applied Geophysics, august 2017. Hongzhu Cai, Xiangyun Hu, Bin Xiong, Esben Auken, Muran Han, Jianhui Li pdf

Mapping the fresh-saltwater interface in the coastal zone using high-resolution airborne electromagnetics
First Break, Vol. 35, August 2017. Jesper B. Pedersen, Frans W. Schaars, Anders V. Christiansen, Nikolaj Foged, Cyril Schamper, Harry Rolf and Esben Auken pdf

Accounting for Relaxation During Pulse Effects for Long Pulses and Fast Relaxation Times in Surface NMR
Geophysics. Denys Grombacher, Ahmad Behroozmand, Esben Auken pdf

Anthropogenic wetlands due to over-irrigation of desert areas: a challenging hydrogeological investigation with extensive geophysical input from TEM and MRS measurements
Hydrol. Earth Syst. Sci., 21, 1527–1545, 2017, Ahmad Ali Behroozmand, Pietro Teatini, Jesper Bjergsted Pedersen, Esben Auken, Omar Tosatto, and Anders Vest Christiansen pdf

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

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

News from HGG

HGG mapping groundwater in Yellowstone National Park.

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


Software

Aarhus Workbench - Processing and inversion software for AEM, ERT,  IP,  GCM

Manuals notes and help to the Aarhus Workbench and our other software packages

Bugtracker - access to our bug tracking system

Downloads - download applications and updates

News & Media

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Article in Videnskab.dk:

Gennembrud i dansk grundvandsforskning - read the article here (in Danish only) and watch the video here.

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.


 

GEOCON projektet giver bølger i grundvandet på Samsø

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.


NEW on YouTube - latest from the TRUST project

Watch it here on YouTube.


NEW NSF VIDEO: Discovery made beneath Antarctica's McMurdo 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.

Watch the US National Science Foundation video here on YouTube!


Article about the Antarctica Project in Nature Communications

Read the article here.

The article has generated widespread media attention - see below:


Danish Technology detects new knowledge about the Antarctic underground.

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’s Antarctica study in the news

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.

The Washington Post featured Mikucki and the study in this article.

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.


Discovered deep under Antarctic surface: Extensive, salty aquifer and potentially vast microbial habitat

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.


 Visitors from China Geological Survey

  

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.


See more from NEWS & MEDIA here.