Who are we?
Welcome to the homepage of the HydroGeophysics Group, Denmark. On this site you can get information about hydrogeophysics, instrument development, software etc. You can also view and download from our extensive list of publications about hydrogeophysics.
The HydroGeophysics Group conducts research and development of geophysical methods to support the ongoing hydrological mapping of Denmark.
Contact the HydroGeophysics Group via email.
MRS - New Papers
Adaptive noise cancelling of multichannel magnetic resonance sounding signals,
Geophysical Journal International, 2012, Dalgaard, E., Auken, E., and Larsen, J. J. pdf
Efficient full decay inversion of MRS data with a stretched-exponential approximation of the T2* distribution,
Geophysical Journal International, 190, 2012, Behroozmand, A. A., Auken, E., Fiandaca, G., Christiansen, A. V., and Christensen, N. B. pdf
Improvement in MRS parameter estimation by joint and laterally constrained inversion of MRS and TEM data,
Geophysics, 74, 2012, Behroozmand, A. A., Auken, E., Fiandaca, G., and Christiansen, A. V. pdf
Coupled hydrogeophysical inversion using time-lapse magnetic resonance sounding and time-lapse gravity data for hydraulic aquifer testing: Will it work in practice?,
Water Resour.Res., 48, 26-1-2012, Herckenrath, D., Auken, E., Christiansen, L., Behroozmand, A. A., and Bauer-Gottwein, P. pdf
IP - New Papers
Resolving spectral information from time domain induced polarization data through 2-d inversion,
Geophysical Journal International, 191, 2012, Fiandaca, G., Ramm, J., Binley, A., Gazoty, A., Christiansen, A. V. and Auken, E. pdf
Time-domain induced polarization: Full-decay forward modeling and 1D laterally constrained inversion of Cole-Cole parameters,
Geophysics, 77, 23-4-2012, Fiandaca, G., Auken, E., Gazoty, A., and Christiansen, A. V. pdf
Application of time domain induced polarization to the mapping of lithotypes in a landfill site,
HESS, 16, 29-6-2012, Gazoty, A., Fiandaca, G., Pedersen, J., Auken, E., Christiansen, A. V., and Pedersen, J. K. pdf
Inversion - New Papers
A global measure for depth of investigation,
Geophysics, 77, 2012, Christiansen, A. V. and Auken, E. pdf
On the value of including x-component data in 1D modeling of electromagnetic data from helicopterborne time domain systems in horizontally layered environments,
Journal of Applied Geophysics, 84, 2012, Kirkegaard, C., Foged, N., Auken, E., Christiansen, A. V., and Sørensen, K. I. pdf
1D single-site and laterally constrained inversion of multifrequency and multicomponent ground-based electromagnetic induction data - Application to the investigation of a near-surface clayey overburden,
Geophysics, 77, 2012, Schamper, C., Rejiba F., and Guérin, R. pdf
Flawed processing of airborne EM data affecting hydrogeological interpretation,
Groundwater, In Press, 2012, Viezzoli, A., Jørgensen, F., and Sørensen, K. I. pdf
Quantification of modeling errors in airborne TEM caused by inaccurate system description,
Geophysics, 76, 2011, Christiansen, A. V., Auken, E., and Viezzoli, A. pdf
3D resistivity gridding of large AEM datasets: A step toward enhanced geological interpretation,
Journal of Applied Geophysics, 75, 2011, Pryet, A., Ramm, J., Chiles, J. P., Auken, E., Deffontaines, B., and Violette, S. pdf
Case studies - New Papers
Combining ground-based and airborne EM through Artificial Neural Networks for modelling glacial till under saline groundwater conditions,
Hydrology and Earth System Sciences, 16, 2012, Gunnink, J. L., Bosch, J. H. A, Siemon, B., Roth.B., and Auken, E. pdf
Seismic results as a-priori knowledge for airborne TEM data inversion - A case study,
Journal of Applied Geophysics, 80, 2012, Burschil, T., Wiederhold, Helga, and Auken, E. pdf
Transboundary geophysical mapping of geological elements and salinity distribution critical for the assessment of future sea water intrusion in response to sea level rise,
Hydrology andEarth SystemSciences, 16, 2012, Joergensen, F., Scheer, W., Thomson, S, Sonnenborg, T. O., Hinsby, K., Wiederhold, Helga, Schamper, C., Burschil, T., Roth.B., Kirsch, R., and Auken, E. pdf
Combined interpretation of SkyTEM and high-resolution seismic data,
Physics and Chemistry of the Earth, 36, 2011, Hoeyer, A. S., Lykke-Andersen, H., Jørgensen, F., and Auken, E. pdf
Salinity Distribution in Heterogeneous Coastal Aquifers Mapped by Airborne Electromagnetics,
Vadose Zone Journal, 10, 2011, Kirkegaard, C., Sonnenborg, T. O., Auken, E., and Flemming, J. pdf
Reports
Master thesis - Guillaume-Alexandre Sab, August 2012 - pdf
Data processing of an Airborne Electromagnetic survey in Antartica.
NiCA SkyTEM survey report, July 2012 - pdf (331 Mb, right click and save link as)
This is the first survey made with the new Mini-SkyTEM sytem whose very low moment and short turn-off allow the use of very early gates down to 5-6 µs. This survey was made as part of the NiCA project (www.nitrat.dk) in which the purpose is to model the reduction of the nitrates in the near-surface aquifers (top 30 m), in order to propose a better optimized regulation of the use of fertilizers by identifying the more risky areas.
Refinement of the TEM reference model at Lyngby, Update June 2012 - pdf.
The initial report has been updated regarding the example of the Sorø SkyTEM survey for which little errors have been found. It does not change the conclusions of the first report, but provides slightly improved results for Sorø example.
Guide for processing and inversion of SkyTEM data, Aarhus Workbench, 2011 - pdf.
The purpose of the document is to support the processing and inversion of SkyTEM data using the program Aarhus Workbench.
Important messages
The HydroGeophysics Group are proud to host the 6th international MRS Workshop - read more
Information from Aarhus Workbench bugtracker system - click here
Calendar
21.08.2013 kl 10.00-12.00:
HyGEM steering group meeting
Registration: Send email to karen.dalsgaard@geo.au.dk.
21.08.2013 kl 13.00-16.00:
HyGEM project workshop
Registration: Send email to karen.dalsgaard@geo.au.dk.
Software
New version: SiTEM / SEMDI version 3.1.21.95
Downloads - download applications and updates
Aarhus Workbench - GIS based presentation and interpretation software
Manuals notes and help to the Aarhus Workbench and our other software packages
Bugtracker - access to our bug tracking system
Media
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| HyGEM in Projects Magazine | Projects Magazine 29 |
"Airborne surveys to map aquifers in five States"
AQUIM project mentioned in an Indian newspaper
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January – February 2011 |
