News and Media

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

Auken, E., Foged, N., Larsen, J. J., Lassen, K. V. T., Maurya, P. K., Dath, S. M., and Eiskjær, T., 2018, tTEM – a Towed TEM system for Detailed 3D Imaging of the Top 70 meters of the Subsurface: Geophysics.

A parallel computing thin sheets inversion algorithm for airborne time domain data utilizing a variable overburden Boesen,T., Auken,E., Christiansen,A.V., Fiandaca,G., Schamper,C.  Geophysical Prospecting, 2018, 66, 1402-1014

Trans-Dimensional Bayesian Inversion of Airborne Transient EM Data From Taylor Glacier, Antarctica Blatter,D., Key,K., Ray,A., Foley,N., Tulaczyk,S., Auken,E. Accepted Manuscript. Geophysical Journal International

Subsurface imaging of water electrical conductivity, hydraulic permeability and lithology at contaminated sites by induced polarization
Maurya, P. K., N. Balbarini, I. Møller, V. Rønde, A. V. Christiansen, P. L. Bjerg, E. Auken and G. Fiandaca (2018). Geophysical Journal International 213(2): 770-785.

Numerically optimized modulations for adiabatic pulses in surface nuclear magnetic resonance Grombacher, D. (2018). Geophysics 83(2): 14.

Practical considerations for small receive coils in surface NMR
Grombacher, D., L. Liu, J. J. Larsen and E. Auken (2018). Journal of Applied Geophysics 2018(154): 81 - 92.

Apsu: a wireless multichannel receiver system for surface-NMR groundwater investigations
Liu, L., D. Grombacher, E. Auken and J. J. Larsen (2018). Geoscientific Instrumentation Methods and Data Systems Discussions.

GEOCON - Udvikling og integrering af geofysiske målinger i forureningsundersøgelser
Bjerg, P. L., A. V. Christiansen, I. Møller, M. G. Møller, T. B. Hansen and J. K. Pedersen (2018). . Vand og Jord. 25: 4-7.

3D-kortlægning af hydraulisk ledningsevne med nye geofysiske målinger
Christiansen, A. V., G. Fiandaca, P. K. Maurya, I. Møller, E. Auken, N. Balbarini and P. L. Bjerg (2018). Vand og Jord. 25: 8-11.

Hvordan kan 3D geologiske modeller bruges i forureningsundersøgelser?
Møller, I., A. S. Høyer, K. E. Klint, G. Fiandaca, P. K. Maurya, N. Balbarini, A. V. Christiansen, M. G. Møller and P. L. Bjerg (2018). Vand og Jord. 25: 12-15.

Geofysik kortlægger grundvandsforurening
Bjerg, P. L., N. Balbarini, V. Rønde, A. V. Christiansen, P. K. Maurya, G. Fiandaca, E. Auken, I. Møller and M. G. Møller (2018).  Vand og Jord. 25: 16-20.

Permeability Estimation Directly From Logging-While-Drilling Induced Polarization Data
Water Resources Research, Accepted article online 26/3-18, Fiandaca,G., Maurya,P.K., Balbarini,N., Hoerdt,A, Christiansen,A.V., Foged,N., Bjerg,P.L., Auken,E.

A parallel computing thin sheets inversion algorithm for airborne time domain data utilizing a variable overburden
Manuscript accepted for Geophysical Prospecting,  Boesen,T., Auken,E., Christiansen,A.V., Fiandaca,G., Schamper,C.

The effects of 3D topography on controlled-source audio-frequency magnetotelluric responses
Geophysics, vol 83, no.2 March-April 2018 Lin,C., Zhong,S., Auken,E., Cai,H., Tan,H., Peng,M., Kong,W. 

A Review of Airborne Electromagnetic Methods With Focus on Geotechnical and Hydrological Applications From 2007 to 2017
Advances in Geophysics, vol 58, Auken,E., Boesen,T., Christiansen,A.V.

Successful Sampling Strategy Advances Laboratory Studies of NMR Logging in Unconsolidated Aquifers
Geophysical Research Letters, online October 2017. Behroozmand,A.A., Knight,R., Müller-Petke.M., Auken,E., Barfod,A., Ferré,T., Vilhelmsen,T.N., Johnson,C.D., Christiansen,A.V.

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 

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 

Resolution of well-known resistivity equivalences by inclusion of time-domain induced polarization data
Madsen, L., G. Fiandaca, A. Christiansen and E. Auken (2017). GEOPHYSICS 83(1): E47-E54.

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

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

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 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


News & Media

 

Ny teknologi skal gøre det muligt at bestemme hvordan undergrunden under den enkelte mark naturligt omsætter kvælstof. Det vil bane vejen for målrettet regulering af kvælstofgødskning, til gavn for både miljø og landbrug. Læs mere her: http://scitech.au.dk/om-science-and-technology/aktuelt/nyheder/vis/artikel/hvor-god-er-din-mark-til-at-holde-paa-kvaelstoffet/


In cooperation with the USGS, HGG is actively involved in organizing the AGU-SEG workshop on airborne magnetics in Florida, June 2019. More information can be found here: https://connect.agu.org/2019aguseg/home


HGG overtager forsiden på ­Politiken den 19, juli 2018

 


Omtale på dr.dk 

Ny metode til rensning af forurenet klitplantage kan give besparelse på 10 mio. kr.

Læs pdf her.


 

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.