Publications

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Doetsch, J , Fiandaca, G , Auken, E , Christiansen, AV, Cahill, AG & Jakobsen, R 2015, 'Field-scale time-domain spectral induced polarization monitoring of geochemical changes induced by injected CO2 in a shallow aquifer', Geophysics, vol. 80, no. 2, pp. WA113-WA126. https://doi.org/10.1190/GEO2014-0315.1

Grombacher, D & Nordin, M 2015, 'Finite difference diagonalization to simulate nuclear magnetic resonance diffusion experiments in porous media', Concepts in magnetic resonance part a, vol. 44, no. 3, pp. 160-180. https://doi.org/10.1002/cmr.a.21349

Fiandaca, G , Doetsch, J , Vignoli, G & Auken, E 2015, 'Generalized focusing of time-lapse changes with applications to direct current and time-domain induced polarization inversions', Geophysical Journal International, vol. 203, no. 2, pp. 1101-1112. https://doi.org/10.1093/gji/ggv350

Podgorski, JE, Green, AG, Kalscheuer, T, Kinzelbach, WKH, Horstmeyer, H, Maurer, H, Rabenstein, L, Doetsch, J , Auken, E, Ngwisanyi, T, Tshoso, G, Jaba, BC, Ntibinyane, O & Laletsang, K 2015, 'Integrated interpretation of helicopter and ground-based geophysical data recorded within the Okavango Delta, Botswana', Journal of Applied Geophysics, vol. 114, pp. 52-67. https://doi.org/10.1016/j.jappgeo.2014.12.017

Chongo, M, Christiansen, AV , Fiandaca, G, Nyambe, IA, Larsen, F & Bauer-Gottwein, P 2015, '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, vol. 123, pp. 81-92. https://doi.org/10.1016/j.jappgeo.2015.10.002

Olsson, P-I, Dahlin, T, Fiandaca, G & Auken, E 2015, 'Measuring time-domain spectral induced polarization in the on-time: decreasing acquisition time and increasing signal-to-noise ratio', Journal of Applied Geophysics, vol. 123, pp. 316-321. https://doi.org/10.1016/j.jappgeo.2015.08.009

Marker, PA, Foged, N, He, X, Christiansen, AV , Refsgaard, JC , Auken, E & Bauer-Gottwein, P 2015, 'Performance evaluation of groundwater model hydrostratigraphy from airborne electromagnetic data and lithological borehole logs', Hydrology and Earth System Sciences, vol. 19, no. 9, pp. 3875-3890. https://doi.org/10.5194/hess-19-3875-2015

Vignoli, G, Fiandaca, G , Christiansen, AV , Kirkegaard, C & Auken, E 2015, 'Sharp spatially constrained inversion with applications to transient electromagnetic data', Geophysical Prospecting, vol. 63, no. 1, pp. 243-255. https://doi.org/10.1111/1365-2478.12185

Dugan, HA, Doran, PT, Tulaczyk, S, Mikucki, JA, Arcone, SA, Auken, E , Schamper, C & Virginia, RA 2015, 'Subsurface imaging reveals a confined aquifer beneath an ice-sealed Antarctic lake', Geophysical Research Letters (Online), vol. 42, no. 1, pp. 96-103. https://doi.org/10.1002/2014GL062431

Grombacher, D & Knight, R 2015, 'The impact of off-resonance effects on water content estimates in surface nuclear magnetic resonance', Geophysics, vol. 80, no. 6, pp. E329-E342. https://doi.org/10.1190/GEO2014-0402.1

Høyer, AS, Jørgensen, FV, Foged, N, He, X & Christiansen, AV 2015, 'Three-dimensional geological modelling of AEM resistivity data - A comparison of three methods', Journal of Applied Geophysics, vol. 115, pp. 65-78. https://doi.org/10.1016/j.jappgeo.2015.02.005

D. Parsekian, A & Grombacher, D 2015, 'Uncertainty estimates for surface nuclear magnetic resonance water content and relaxation time profiles from bootstrap statistics', Journal of Applied Geophysics, vol. 119, pp. 61-70. https://doi.org/10.1016/j.jappgeo.2015.05.005

Christiansen, AV , Foged, N & Auken, E 2014, 'A concept for calculating accumulated clay thickness from borehole lithological logs and resistivity models for nitrate vulnerability assessment', Journal of Applied Geophysics, vol. 108, pp. 69-77. https://doi.org/10.1016/j.jappgeo.2014.06.010

Schamper, C, Jorgensen, F, Auken, E & Effersø, F 2014, 'Assessment of near-surface mapping capabilities by airborne transient electromagnetic data: An extensive comparison to conventional borehole data', Geophysics, vol. 79, no. 4, pp. B187-B199. https://doi.org/10.1190/GEO2013-0256.1

Dalgaard, EB, Christiansen, P, Larsen, JJ & Auken, E 2014, 'A temporal and spatial analysis of anthropogenic noise sources affecting SNMR', Journal of Applied Geophysics, vol. 110, pp. 34-42. https://doi.org/10.1016/j.jappgeo.2014.08.009

Schamper, CNC , Auken, E & Sørensen, KIKI 2014, 'Coil response inversion for very early time modelling of helicopter-borne time-domain electromagnetic data and mapping of near-surface geological layers', Geophysical Prospecting, vol. 62, no. 3, pp. 658-674. https://doi.org/10.1111/1365-2478.12104

Walbrecker, JO, Kalisky, B, Grombacher, D, Kirtley, J, Moler, KA & Knight, R 2014, 'Direct measurement of internal magnetic fields in natural sands using scanning SQUID microscopy', Journal of Magnetic Resonance, vol. 242, pp. 10-17. https://doi.org/10.1016/j.jmr.2014.01.012

Mose Jensen, M-B, Auken, E & Vest Christiansen, A 2014, 'Geofysikken i Naturstyrelsens grundvandskortlægning', Vand & Jord, vol. 21, no. 2, pp. 48-52.

Auken, E , Doetsch, J , Fiandaca, G , Christiansen, AV , Gazoty, A, Cahill, AG & Jakobsen, R 2014, 'Imaging subsurface migration of dissolved CO2 in a shallow aquifer using 3-D time-lapse electrical resistivity tomography', Journal of Applied Geophysics, vol. 101, pp. 31-41. https://doi.org/10.1016/j.jappgeo.2013.11.011

Grombacher, D, Walbrecker, JO & Knight, R 2014, 'Imparting a phase during excitation for improved resolution in surface nuclear magnetic resonance', Geophysics, vol. 79, no. 6, pp. E329-E339. https://doi.org/10.1190/GEO2013-0452.1

Høyer, AS, Jørgensen, F, Lykke-Andersen, H & Christiansen, AV 2014, 'Iterative modelling of AEM data based on a priori information from seismic and borehole data', Near Surface Geophysics, vol. 12, no. 5, pp. 635-650. https://doi.org/10.3997/1873-0604.2014024

Foged, N, Marker, PA, Christiansen, AV, Bauer-Gottwein, P, Jørgensen, F, Høyer, AS & Auken, E 2014, 'Large-scale 3-D modeling by integration of resistivity models and borehole data through inversion', Hydrology and Earth System Sciences, vol. 18, no. 11, pp. 4349-4362. https://doi.org/10.5194/hess-18-4349-2014

Christensen, NB & Halkjær, M 2014, 'Mapping pollution and coastal hydrogeology with helicopterborne transient electromagnetic measurements', Exploration Geophysics, vol. 45, no. 4, pp. 243-254. https://doi.org/10.1071/EG13071

Refsgaard, JC, Auken, E, Bamberg, CA, Christensen, BSB, Clausen, T, Dalgaard, E, Effersø, F, Ernstsen, V, Gertz, F, Hansen, AL, He, X, Jacobsen, BH, Jensen, KH, Jørgensen, F, Jørgensen, LF, Koch, J, Nilsson, B, Petersen, C, De Schepper, G, Schamper, C , Sørensen, KI, Therrien, R, Thirup, C & Viezzoli, A 2014, 'Nitrate reduction in geologically heterogeneous catchments: A framework for assessing the scale of predictive capability of hydrological models', Science of the Total Environment, vol. 468-469, pp. 1278-1288. https://doi.org/10.1016/j.scitotenv.2013.07.042

Grombacher, D, Walbrecker, JO & Knight, R 2014, 'Quantifying background magnetic-field inhomogeneity for improved interpretation of free induction decay measurements', Geophysics, vol. 79, no. 1, pp. E11-E21. https://doi.org/10.1190/GEO2012-0488.1

Christensen, NB & Lawrie, K 2014, 'Response to comments by Adam Smiarowski and Shane Mulè on: Christensen, N., and Lawrie, K., 2012. Resolution analyses for selecting an appropriate airborne electromagnetic (AEM) system', Exploration Geophysics, vol. 43, pp. 213-227. https://doi.org/10.1071/EG14015

Christensen, NB 2014, 'Sensitivity functions of transient electromagnetic methods', Geophysics, vol. 79, no. 4, pp. E167-E182. https://doi.org/10.1190/GEO2013-0364.1

Behroozmand, A , Dalgaard, EB , Christiansen, AV & Auken, E 2013, 'A comprehensive study of the parameter determination in a joint MRS and TEM data analysis scheme', Near Surface Geophysics, vol. 11, no. 5, pp. 557-567. https://doi.org/10.3997/1873-0604.2013040

Jørgensen, F, Møller, RR, Nebel, L, Jensen, N, Christiansen, AV & Sandersen, P 2013, 'A method for cognitive 3D geological voxel modelling of AEM data', Bulletin of Engineering Geology and the Environment, vol. 72, no. 3-4, pp. 421-432. https://doi.org/10.1007/s10064-013-0487-2

Herckenrath, D, Odlum, N, Nenna, V, Knight, R, Auken, E & Bauer-Gottwein, P 2013, 'Calibrating a Salt Water Intrusion Model with Time-Domain Electromagnetic Data', Ground Water, vol. 51, no. 3, pp. 385-397. https://doi.org/10.1111/j.1745-6584.2012.00974.x

Legaz, A , Fiandaca, G , Pedersen, JB , Auken, E & Christiansen, AV 2013, 'Data repeatability and acquisition techniques for Time-Domain Spectral Induced Polarization', Near Surface Geophysics, vol. 11, no. 4, pp. 391-406. https://doi.org/10.3997/1873-0604.2013013

Davis, A & Christensen, NB 2013, 'Derivative analysis for layer selection of geophysical borehole logs', Computers & Geosciences, vol. 60, pp. 34-40. https://doi.org/10.1016/j.cageo.2013.06.015

Pedersen, JB, Flemming, E, Flemming, J, Auken, E , Schamper, CNC & Christiansen, AV 2013, 'Mini-SkyTEM - et nyt kortlægningsværktøj', Vand & Jord, vol. 20, no. 3, pp. 118-121.

Larsen, JJ , Dalgaard, EB & Auken, E 2013, 'Noise cancelling of MRS signals combining model-based removal of powerline harmonics and multichannel Wiener filtering', Geophysical Journal International, vol. 196, no. 2, pp. 828-836. https://doi.org/10.1093/gji/ggt422

Podgorski, JEJE, Green, AGAG, Kgotlhang, LL, Kinzelbach, WKHWKH, Kalscheuer, TT, Auken, E & Ngwisanyi, THTH 2013, 'Paleo-megalake and paleo-megafan in southern Africa', Geology, vol. 41, no. 11, pp. 1155-1158. https://doi.org/10.1130/G34735.1

J.E., P, Auken, E , Schamper, CNC , Christiansen, AV, Kalscheuer, T & Green, AG 2013, 'Processing and inversion of commercial helicopter time-domain electromagnetic data for environmental assessments and geologic and hydrologic mapping', Geophysics, vol. 78, pp. E149-E159. https://doi.org/10.1190/GEO2012-0452.1

Fiandaca, G , Ramm, J, Binley, A, Gazoty, A , Christiansen, AV & Auken, E 2013, 'Resolving spectral information from time domain induced polarization data through 2-D inversion', Geophysical Journal International, vol. 192, no. 2, pp. 631-646. https://doi.org/10.1093/gji/ggs060

Herckenrath, D, Fiandaca, G , Auken, E & Baur-Gottwein, P 2013, 'Sequential and joint hydrogeophysical inversion using a field-scale groundwater model with ERT and TDEM data', Hydrology and Earth System Sciences, vol. 17, pp. 4043-4060. https://doi.org/10.5194/hess-17-4043-2013

Foged, N , Auken, E , Christiansen, AV & Sørensen, KI 2013, 'Test-site calibration and validation of airborne and ground-based TEM systems', Geophysics, vol. 78, no. 2, pp. E95-E106. https://doi.org/10.1190/GEO2012-0244.1

Dalgaard, E , Auken, E & Larsen, JJ 2012, 'Adaptive noise cancelling of multichannel magnetic resonance sounding signals', Geophysical Journal International, vol. 191, no. 1, pp. 88-100. https://doi.org/10.1111/j.1365-246X.2012.05618.x

Christiansen, AV & Auken, E 2012, 'A global measure for depth of investigation', Geophysics, vol. 77, no. 4, pp. WB171-WB177. https://doi.org/10.1190/geo2011-0393.1

Legaz, A , Fiandaca, G , Pedersen, JB , Auken, E , Christiansen, AV & Pedersen, JK 2012, 'Application of time domain induced polarization to the mapping of lithotypes in a landfill site', L W - Landwirtschaftliches Wochenblatt Hessen, Rheinland-Pfalz. Hessenbauer (Ausgabe Nord), vol. 77, no. 3, pp. 1793-1804.

Gazoty, A , Fiandaca, G, Pedersen, J, Auken, E , Christiansen, AV & Pedersen, JK 2012, 'Application of time domain induced polarization to the mapping of lithotypes in a landfill site', Hydrology and Earth System Sciences, vol. 16, no. 6, pp. 1793-1804. https://doi.org/10.5194/hess-16-1793-2012

Gunnink, JL, Bosch, A, Siemon, B, Roth, B & Auken, E 2012, 'Combining ground-based and airborne EM through Artificial Neural Networks for modelling glacial till under saline groundwater conditions', Hydrology and Earth System Sciences, vol. 16, no. 8, pp. 3061-3074. https://doi.org/10.5194/hess-16-3061-2012

Herckenrath, D, Auken, E, Christiansen, L, Behroozmand, A & Bauer-Gottwein, P 2012, 'Coupled hydrogeophysical inversion using time-lapse magnetic resonance sounding and time-lapse gravity data for hydraulic aquifer testing: Will it work in practice?', Water Resources Research, vol. 48, no. 1, W01539. https://doi.org/10.1029/2011WR010411

Behroozmand, A , Auken, E , Fiandaca, G , Christiansen, AV & Christensen, NB 2012, 'Efficient full decay inversion of MRS data with a stretched-exponential approximation of the T2* distribution', Geophysical Journal International, vol. 190, no. 2, pp. 900-912. https://doi.org/10.1111/j.1365-246X.2012.05558.x

Pryet, A, D'Ozouville, N, Violette, S, Deffontaines, B & Auken, E 2012, 'Hydrogeological settings of a volcanic island (San Cristobal, Galapagos) from joint interpretation of airborne electromagnetics and geomorphological observations', Hydrology and Earth System Sciences, vol. 16, no. 12, pp. 4571-4579. https://doi.org/10.5194/hess-16-4571-2012

Behroozmand, AA , Auken, E , Fiandaca, G & Christiansen, AV 2012, 'Improvement in MRS parameter estimation by joint and laterally constrained inversion of MRS and TEM data', Geophysics, vol. 77, no. 4, pp. WB191-WB200. https://doi.org/10.1190/geo2011-0404.1

Gazoty, A , Fiandaca, G , Pedersen, JB , Auken, E & Christiansen, AV 2012, 'Mapping of landfills using time-domain spectral induced polarization data: The Eskelund case study', Near Surface Geophysics, vol. 10, no. 6, pp. 575-586. https://doi.org/10.3997/1873-0604.2012046

Kirkegaard, C , Foged, N , Auken, E , Christiansen, AV & Sørensen, K 2012, '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, vol. 84, pp. 61-69. https://doi.org/10.1016/j.jappgeo.2012.06.006

Displaying results 201 to 250 out of 313

Revised 01.11.2024

gfs@geo.au.dk

Department of Geoscience

HydroGeophysics Group

Publications