Articles | Volume 16, issue 7
https://doi.org/10.5194/hess-16-1845-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/hess-16-1845-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
04 Jul 2012
Research article |
| 04 Jul 2012
Transboundary geophysical mapping of geological elements and salinity distribution critical for the assessment of future sea water intrusion in response to sea level rise
F. Jørgensen
Geological Survey of Denmark and Greenland, Lyseng Allé 1, 8270 Højbjerg, Denmark
W. Scheer
State Agency for Agriculture, Environment and Rural Areas of the Federal State Schleswig-Holstein, Hamburger Chaussee 25, 24220 Flintbek, Germany
S. Thomsen
Danish Nature Agency Ribe, Sorsigvej 35, 6760 Ribe, Denmark
T. O. Sonnenborg
Geological Survey of Denmark and Greenland, Øster Voldgade 10, 1350 København K, Denmark
K. Hinsby
Geological Survey of Denmark and Greenland, Øster Voldgade 10, 1350 København K, Denmark
H. Wiederhold
Leibniz Institute for Applied Geophysics, Stilleweg 2, 30655 Hannover, Germany
C. Schamper
Dept. of Earth Sciences, Aarhus University, Høegh-Guldbergs Gade 2, 8000 Aarhus, Denmark
T. Burschil
Leibniz Institute for Applied Geophysics, Stilleweg 2, 30655 Hannover, Germany
B. Roth
Dept. of Earth Sciences, Aarhus University, Høegh-Guldbergs Gade 2, 8000 Aarhus, Denmark
R. Kirsch
State Agency for Agriculture, Environment and Rural Areas of the Federal State Schleswig-Holstein, Hamburger Chaussee 25, 24220 Flintbek, Germany
E. Auken
Dept. of Earth Sciences, Aarhus University, Høegh-Guldbergs Gade 2, 8000 Aarhus, Denmark
Related subject area
Subject: Water Resources Management | Techniques and Approaches: Instruments and observation techniques
Patterns and drivers of water quality changes associated with dams in the Tropical Andes
δ13C, CO2 ∕ 3He and 3He ∕ 4He ratios reveal the presence of mantle gas in the CO2-rich groundwaters of the Ardennes massif (Spa, Belgium)
Advances in the hydraulic interpretation of water wells using flowmeter logs
Continuous monitoring of a soil aquifer treatment system's physico-chemical conditions to optimize operational performance
Building a methodological framework and toolkit for news media dataset tracking of conflict and cooperation dynamics on transboundary rivers
Investigating the environmental response to water harvesting structures: a field study in Tanzania
The importance of city trees for reducing net rainfall: comparing measurements and simulations
Small-scale characterization of vine plant root water uptake via 3-D electrical resistivity tomography and mise-à-la-masse method
Hydrogeological controls on spatial patterns of groundwater discharge in peatlands
Monitoring surface water quality using social media in the context of citizen science
Using crowdsourced web content for informing water systems operations in snow-dominated catchments
Learning about water resource sharing through game play
High-resolution monitoring of nutrients in groundwater and surface waters: process understanding, quantification of loads and concentrations, and management applications
Contrasting watershed-scale trends in runoff and sediment yield complicate rangeland water resources planning
The use of semi-structured interviews for the characterisation of farmer irrigation practices
High-frequency monitoring of water fluxes and nutrient loads to assess the effects of controlled drainage on water storage and nutrient transport
Investigating suspended sediment dynamics in contrasting agricultural catchments using ex situ turbidity-based suspended sediment monitoring
Vulnerability of groundwater resources to interaction with river water in a boreal catchment
Drivers of spatial and temporal variability of streamflow in the Incomati River basin
Using high-resolution phosphorus data to investigate mitigation measures in headwater river catchments
Comparison of sampling methodologies for nutrient monitoring in streams: uncertainties, costs and implications for mitigation
Geophysical methods to support correct water sampling locations for salt dilution gauging
Water management simulation games and the construction of knowledge
Tracing the spatial propagation of river inlet water into an agricultural polder area using anthropogenic gadolinium
Potentials and limits of urban rainwater harvesting in the Middle East
Hydrologic feasibility of artificial forestation in the semi-arid Loess Plateau of China
Hydraulic analysis of river training cross-vanes as part of post-restoration monitoring
Modern comprehensive approach to monitor the morphodynamic evolution of a restored river corridor
The effect of physical water quality and water level changes on the occurrence and density of Anopheles mosquito larvae around the shoreline of the Koka reservoir, central Ethiopia
Space-time variability of hydrological drought and wetness in Iran using NCEP/NCAR and GPCC datasets
Relative impacts of key drivers on the response of the water table to a major alley farming experiment
R. Scott Winton, Silvia López-Casas, Daniel Valencia-Rodríguez, Camilo Bernal-Forero, Juliana Delgado, Bernhard Wehrli, and Luz Jiménez-Segura
EGUsphere, https://doi.org/10.5194/egusphere-2022-403, https://doi.org/10.5194/egusphere-2022-403, 2022
Short summary
Short summary
Dams are an important and rapidly growing means for energy generation in the Tropical Andes of South America. To assess the impacts of dams in the region, we assessed differences in upstream and downstream water quality of all hydropower dams in Colombia. We found evidence for substantial dam-induced changes to water temperatures, concentrations of dissolved oxygen and suspended sediments. Dam-induced changes to Colombian waters violate regulations and are likely impacting aquatic life.
Agathe Defourny, Pierre-Henri Blard, Laurent Zimmermann, Patrick Jobé, Arnaud Collignon, Frédéric Nguyen, and Alain Dassargues
Hydrol. Earth Syst. Sci., 26, 2637–2648, https://doi.org/10.5194/hess-26-2637-2022, https://doi.org/10.5194/hess-26-2637-2022, 2022
Short summary
Short summary
The Belgian city of Spa is known worldwide for its ferruginous and naturally sparkling groundwater springs that gave their name to the bathing tradition commonly called
spa. However, the origin of the dissolved CO2 they contain was still a matter of debate. Thanks to new analysis on groundwater samples, particularly carbon and helium isotopes together with dissolved gases, this study has demonstrated that the volcanic origin of the CO2 is presumably from the neighboring Eifel volcanic fields.
Jesús Díaz-Curiel, Bárbara Biosca, Lucía Arévalo-Lomas, María Jesús Miguel, and Natalia Caparrini
Hydrol. Earth Syst. Sci., 26, 2617–2636, https://doi.org/10.5194/hess-26-2617-2022, https://doi.org/10.5194/hess-26-2617-2022, 2022
Short summary
Short summary
A methodology is developed for a new hydraulic characterization of continental hydrological basins. For this purpose, the division of wells into flow stretches with different hydraulic behaviour is made according to the results of the flowmeter, supposing that the hypothesis hydraulic heads of the deepest flow stretches of the well do not necessarily match the head shown by the overall well.
Tuvia Turkeltaub, Alex Furman, Ron Mannheim, and Noam Weisbrod
Hydrol. Earth Syst. Sci., 26, 1565–1578, https://doi.org/10.5194/hess-26-1565-2022, https://doi.org/10.5194/hess-26-1565-2022, 2022
Short summary
Short summary
The quality control and optimization of soil aquifer treatment (SAT) performance is challenging due to the multiple factors and costs involved. We installed in situ subsurface monitoring sensors that provided continuous high-resolution monitoring of the biochemical and physical conditions of an active SAT system. Data analysis facilitated the determination of the optimal drying and wetting stages, which are critical for suitable SAT management.
Liying Guo, Jing Wei, Keer Zhang, Jiale Wang, and Fuqiang Tian
Hydrol. Earth Syst. Sci., 26, 1165–1185, https://doi.org/10.5194/hess-26-1165-2022, https://doi.org/10.5194/hess-26-1165-2022, 2022
Short summary
Short summary
Data support is crucial for the research of conflict and cooperation on transboundary rivers. Conventional, manual constructions of datasets cannot meet the requirements for fast updates in the big data era. This study brings up a revised methodological framework, based on the conventional method, and a toolkit for the news media dataset tracking of conflict and cooperation dynamics on transboundary rivers. A dataset with good tradeoffs between data relevance and coverage is generated.
Jessica A. Eisma and Venkatesh M. Merwade
Hydrol. Earth Syst. Sci., 24, 1891–1906, https://doi.org/10.5194/hess-24-1891-2020, https://doi.org/10.5194/hess-24-1891-2020, 2020
Short summary
Short summary
Sand dams capture and store water for use during the dry season in rural communities. A year long field study of three sand dams in Tanzania showed that sand dams are not a suitable habitat for aquatic insects. They capture plenty of water, but most is evaporated during the first few months of the dry season. Sand dams positively impact vegetation and minimally impact erosion. Community water security can be increased by sand dams, but site characteristics and construction are important factors.
Vincent Smets, Charlotte Wirion, Willy Bauwens, Martin Hermy, Ben Somers, and Boud Verbeiren
Hydrol. Earth Syst. Sci., 23, 3865–3884, https://doi.org/10.5194/hess-23-3865-2019, https://doi.org/10.5194/hess-23-3865-2019, 2019
Short summary
Short summary
The impact of city trees for intercepting rainfall is quantified using measurements and modeling tools. The measurements show that an important amount of rainfall is intercepted, limiting the amount of water reaching the ground. Models are used to extrapolate the measurement results. The performance of two specialized interception models and one water balance model is evaluated. Our results show that the performance of the water balance model is similar to the specialized interception models.
Benjamin Mary, Luca Peruzzo, Jacopo Boaga, Myriam Schmutz, Yuxin Wu, Susan S. Hubbard, and Giorgio Cassiani
Hydrol. Earth Syst. Sci., 22, 5427–5444, https://doi.org/10.5194/hess-22-5427-2018, https://doi.org/10.5194/hess-22-5427-2018, 2018
Danielle K. Hare, David F. Boutt, William P. Clement, Christine E. Hatch, Glorianna Davenport, and Alex Hackman
Hydrol. Earth Syst. Sci., 21, 6031–6048, https://doi.org/10.5194/hess-21-6031-2017, https://doi.org/10.5194/hess-21-6031-2017, 2017
Short summary
Short summary
This research examines what processes drive the location and strength of groundwater springs within a peatland environment. Using temperature and geophysical methods, we demonstrate that the relationship between regional groundwater flow gradients and the basin shape below the peatland surface control where groundwater springs occur. Understanding this relationship will support effective restoration efforts, as groundwater spring locations are important to overall peatland function and ecology.
Hang Zheng, Yang Hong, Di Long, and Hua Jing
Hydrol. Earth Syst. Sci., 21, 949–961, https://doi.org/10.5194/hess-21-949-2017, https://doi.org/10.5194/hess-21-949-2017, 2017
Short summary
Short summary
Do you feel angry if the river in your living place is polluted by industries? Do you want to do something to save your environment? Just log in to http://www.thuhjjc.com and use the Tsinghua Environment Monitoring Platform (TEMP) to photograph the water pollution actives and make your report. This study established a social media platform to monitor and report surface water quality. The effectiveness of the platform was demonstrated by the 324 water quality reports across 30 provinces in China.
Matteo Giuliani, Andrea Castelletti, Roman Fedorov, and Piero Fraternali
Hydrol. Earth Syst. Sci., 20, 5049–5062, https://doi.org/10.5194/hess-20-5049-2016, https://doi.org/10.5194/hess-20-5049-2016, 2016
Short summary
Short summary
The unprecedented availability of user-generated data on the Web is opening new opportunities for enhancing real-time monitoring and modeling of environmental systems based on data that are public, low-cost, and spatiotemporally dense. In this paper, we contribute a novel crowdsourcing procedure for extracting snow-related information from public web images. The value of the obtained virtual snow indexes is assessed for a real-world water management problem.
Tracy Ewen and Jan Seibert
Hydrol. Earth Syst. Sci., 20, 4079–4091, https://doi.org/10.5194/hess-20-4079-2016, https://doi.org/10.5194/hess-20-4079-2016, 2016
Short summary
Short summary
Games are an optimal way to teach about water resource sharing, as they allow real-world scenarios to be explored. We look at how games can be used to teach about water resource sharing, by both playing and developing water games. An evaluation of the web-based game Irrigania found Irrigania to be an effective and easy tool to incorporate into curriculum, and a course on developing water games encouraged students to think about water resource sharing in a more critical and insightful way.
Frans C. van Geer, Brian Kronvang, and Hans Peter Broers
Hydrol. Earth Syst. Sci., 20, 3619–3629, https://doi.org/10.5194/hess-20-3619-2016, https://doi.org/10.5194/hess-20-3619-2016, 2016
Short summary
Short summary
The paper includes a review of the current state of high-frequency monitoring in groundwater and surface waters as an outcome of a special issue of HESS and four sessions at EGU on this topic. The focus of the paper is to look at how high-frequency monitoring can be used as a valuable support to assess the management efforts under various EU directives. We conclude that we in future will see a transition from research to implementation in operational monitoring use of high-frequency sensors.
Matthew D. Berg, Franco Marcantonio, Mead A. Allison, Jason McAlister, Bradford P. Wilcox, and William E. Fox
Hydrol. Earth Syst. Sci., 20, 2295–2307, https://doi.org/10.5194/hess-20-2295-2016, https://doi.org/10.5194/hess-20-2295-2016, 2016
Short summary
Short summary
Rangelands, from grasslands to woodlands, cover much of the earth. These areas face great pressure to meet growing water needs. Data on large-scale dynamics that drive water planning remain rare. Our watershed-scale results challenge simplistic hydrological assumptions. Streamflow was resilient to dramatic landscape changes. These changes did shape sediment yield, affecting water storage. Understanding these processes is vital to projections of rangeland water resources in a changing world.
Jimmy O'Keeffe, Wouter Buytaert, Ana Mijic, Nicholas Brozović, and Rajiv Sinha
Hydrol. Earth Syst. Sci., 20, 1911–1924, https://doi.org/10.5194/hess-20-1911-2016, https://doi.org/10.5194/hess-20-1911-2016, 2016
Short summary
Short summary
Semi-structured interviews provide an effective and efficient way of collecting qualitative and quantitative data on water use practices. Interviews are organised around a topic guide, which helps lead the conversation while allowing sufficient opportunity to identify issues previously unknown to the researcher. The use of semi-structured interviews could significantly and quickly improve insight on water resources, leading to more realistic future management options and increased water security.
J. C. Rozemeijer, A. Visser, W. Borren, M. Winegram, Y. van der Velde, J. Klein, and H. P. Broers
Hydrol. Earth Syst. Sci., 20, 347–358, https://doi.org/10.5194/hess-20-347-2016, https://doi.org/10.5194/hess-20-347-2016, 2016
Short summary
Short summary
Controlled drainage has been recognized as an effective option to optimize soil moisture conditions for agriculture and to reduce unnecessary losses of fresh water and nutrients. For a grassland field in the Netherlands, we measured the changes in the field water and solute balance after introducing controlled drainage. We concluded that controlled drainage reduced the drain discharge and increased the groundwater storage in the field, but did not have clear positive effects for water quality.
S. C. Sherriff, J. S. Rowan, A. R. Melland, P. Jordan, O. Fenton, and D. Ó hUallacháin
Hydrol. Earth Syst. Sci., 19, 3349–3363, https://doi.org/10.5194/hess-19-3349-2015, https://doi.org/10.5194/hess-19-3349-2015, 2015
A. Rautio, A.-L. Kivimäki, K. Korkka-Niemi, M. Nygård, V.-P. Salonen, K. Lahti, and H. Vahtera
Hydrol. Earth Syst. Sci., 19, 3015–3032, https://doi.org/10.5194/hess-19-3015-2015, https://doi.org/10.5194/hess-19-3015-2015, 2015
Short summary
Short summary
Based on low-altitude aerial infrared surveys, around 370 groundwater–surface water interaction sites were located. Longitudinal temperature patterns, stable isotopes and dissolved silica composition of the studied rivers differed. Interaction sites identified in the proximity of 12 municipal water plants during low-flow seasons should be considered as potential risk areas during flood periods and should be taken under consideration in river basin management under changing climatic situations.
A. M. L. Saraiva Okello, I. Masih, S. Uhlenbrook, G. P. W. Jewitt, P. van der Zaag, and E. Riddell
Hydrol. Earth Syst. Sci., 19, 657–673, https://doi.org/10.5194/hess-19-657-2015, https://doi.org/10.5194/hess-19-657-2015, 2015
Short summary
Short summary
We studied long-term daily records of rainfall and streamflow of the Incomati River basin in southern Africa. We used statistical analysis and the Indicators of Hydrologic Alteration tool to describe the spatial and temporal variability flow regime. We found significant declining trends in October flows, and low flow indicators; however, no significant trend was found in rainfall. Land use and flow regulation are larger drivers of temporal changes in streamflow than climatic forces in the basin.
J. M. Campbell, P. Jordan, and J. Arnscheidt
Hydrol. Earth Syst. Sci., 19, 453–464, https://doi.org/10.5194/hess-19-453-2015, https://doi.org/10.5194/hess-19-453-2015, 2015
Short summary
Short summary
High-resolution phosphorus and flow data were used to gauge the effects of diffuse (soil P) and point source (septic tank system) mitigation measures in two flashy headwater river catchments. Over 4 years the data indicated an overall increase in P concentration in defined high flow ranges and low flow P concentration showed little change. The work indicates fractured responses to catchment management advice and mitigation which were also affected by variations in seasonal hydrometeorology.
J. Audet, L. Martinsen, B. Hasler, H. de Jonge, E. Karydi, N. B. Ovesen, and B. Kronvang
Hydrol. Earth Syst. Sci., 18, 4721–4731, https://doi.org/10.5194/hess-18-4721-2014, https://doi.org/10.5194/hess-18-4721-2014, 2014
Short summary
Short summary
The mitigation of excess nitrogen and phosphorus in river waters requires costly measures. Therefore it is essential to use reliable monitoring methods to select adequate mitigation strategies. Here we show that more development is needed before passive samplers can be considered as reliable alternative for sampling nutrients in stream. We also showed that although continuous sampling is expensive, its reliability precludes unnecessarily high implementation costs of mitigation measures.
C. Comina, M. Lasagna, D. A. De Luca, and L. Sambuelli
Hydrol. Earth Syst. Sci., 18, 3195–3203, https://doi.org/10.5194/hess-18-3195-2014, https://doi.org/10.5194/hess-18-3195-2014, 2014
M. Rusca, J. Heun, and K. Schwartz
Hydrol. Earth Syst. Sci., 16, 2749–2757, https://doi.org/10.5194/hess-16-2749-2012, https://doi.org/10.5194/hess-16-2749-2012, 2012
J. Rozemeijer, C. Siderius, M. Verheul, and H. Pomarius
Hydrol. Earth Syst. Sci., 16, 2405–2415, https://doi.org/10.5194/hess-16-2405-2012, https://doi.org/10.5194/hess-16-2405-2012, 2012
J. Lange, S. Husary, A. Gunkel, D. Bastian, and T. Grodek
Hydrol. Earth Syst. Sci., 16, 715–724, https://doi.org/10.5194/hess-16-715-2012, https://doi.org/10.5194/hess-16-715-2012, 2012
T. T. Jin, B. J. Fu, G. H. Liu, and Z. Wang
Hydrol. Earth Syst. Sci., 15, 2519–2530, https://doi.org/10.5194/hess-15-2519-2011, https://doi.org/10.5194/hess-15-2519-2011, 2011
T. A. Endreny and M. M. Soulman
Hydrol. Earth Syst. Sci., 15, 2119–2126, https://doi.org/10.5194/hess-15-2119-2011, https://doi.org/10.5194/hess-15-2119-2011, 2011
N. Pasquale, P. Perona, P. Schneider, J. Shrestha, A. Wombacher, and P. Burlando
Hydrol. Earth Syst. Sci., 15, 1197–1212, https://doi.org/10.5194/hess-15-1197-2011, https://doi.org/10.5194/hess-15-1197-2011, 2011
B. M. Teklu, H. Tekie, M. McCartney, and S. Kibret
Hydrol. Earth Syst. Sci., 14, 2595–2603, https://doi.org/10.5194/hess-14-2595-2010, https://doi.org/10.5194/hess-14-2595-2010, 2010
T. Raziei, I. Bordi, L. S. Pereira, and A. Sutera
Hydrol. Earth Syst. Sci., 14, 1919–1930, https://doi.org/10.5194/hess-14-1919-2010, https://doi.org/10.5194/hess-14-1919-2010, 2010
S. L. Noorduijn, K. R. J. Smettem, R. Vogwill, and A. Ghadouani
Hydrol. Earth Syst. Sci., 13, 2095–2104, https://doi.org/10.5194/hess-13-2095-2009, https://doi.org/10.5194/hess-13-2095-2009, 2009
Cited articles
Andersen, L. T.: The Fanø Bugt Glaciotectonic Thrust Fault Complex, Southeastern Danish North Sea. A study of large-scale glaciotectonics using high-resolution seismic data and numerical modeling, Ph.D. thesis, Department of Earth Science, Aarhus University, Geological Survey of Denmark and Greenland report 2004/30, 2004.
Andersen, M. S., Baron, L., Gudbjerg, J., Gregersen, J., Chapellier, D., Jakobsen, R., and Postma, D.: Discharge of nitrate-containing groundwater into a coastal marine environment, J. Hydrol,, 336, 98–114, 2007.
Archie, G. E.: The electrical resistivity log as an aid in determining some reservoir characteristics, T. Am. I. Min. Met., 146, 54–62, 1942.
Auken, E. and Sørensen, K. I.: Large-scale TEM investigation for groundwater ASEG, Australia, 2003.
Auken, E., Christiansen, A. V., Westergaard, J. A., Kirkegaard, C., Foged, N., and Viezzoli, A.: An integrated processing scheme for high-resolution airborne electromagnetic surveys, the SkyTEM system, Explor. Geophys., 40, 184–192, 2009.
Auken, E., Foged, N., and Sørensen, K. I.: Approaching 10 microsec (and earlier) with the SkyTEM system ASEG, 21st International Geophysical Confernce and Exhibition, Sydney, 2010a.
Auken, E., Kirkegaard, C., Ribeiro, J., Foged, N., and Kok, A.: The use of airborne electromagnetic for efficient mapping of salt water intrusion and outflow to the sea, SWIM21 – 21st Salt Water Intrusion Meeting, 21–26 June, Azores, Portugal, 2010b.
Bartholdy, J. and Pejrup, M.: Holocene Evolution of the Danish Wadden Sea, Senck. Marit., 24, 187–209, 1994.
Bear, J., Cheng, A. H. D., Sorek, S., Ouazar, D., and Herrera, I.: Seawater intrusion in coastal aquifers – concepts, methods and practices, Kluwer Academic Publishers, Dordrecht, 1999.
Buckley, D. K., Hinsby, K., and Manzano, M.: Application of geophysical borehole logging techniques to examine coastal aquifer palaeohydrogeology, Geol. Soc. SP, 189, 251–270, 2001.
Calvache, M. L. and Pulido-Bosch, A.: Effects of geology and human activity on the dynamics of salt-water intrusion in three coastal aquifers in southern Spain, Environ. Geol., 30, 215–223, 1997.
Carrera, J., Hidalgo, J. J., Slooten, L. J., and Vázquez-Suñé, E.: Computational and conceptual issues in the calibration of seawater intrusion models, Hydrogeol. J., 18, 131–145, 2010.
Cartwright, J.: The structural evolution of the Ringkøbing-Fyn High, in: Tectonic Evolution of the North Sea Rifts, edited by: Blundell, D. J. and Gibbs, A. D., Clarendon Press, Oxford, 200–216, 1990.
Chang, S. W., Clement, T. P., Simpson, M. J., and Lee, K.-K.: Does sea-level rise have an impact on saltwater intrusion?, Adv. Water Resour., 34, 1283–1291, 2011.
Clark, P. U. and Mix, A. C.: Ice sheets and sea level of the Last Glacial Maximum, Quaternary Sci. Rev., 21, 1–7, 2002.
Custodio, E. and Bruggeman, G. A.: Groundwater problems in coastal areas, UNESCO, International Hydrological Programme, Paris, 1987.
de Louw, P. G. B., Eeman, S., Siemon, B., Voortman, B. R., Gunnink, J., van Baaren, E. S., and Oude Essink, G. H. P.: Shallow rainwater lenses in deltaic areas with saline seepage, Hydrol. Earth Syst. Sci., 15, 3659–3678, https://doi.org/10.5194/hess-15-3659-2011, 2011.
Edmunds, W. M., Hinsby, K., Marlin, C., Condesso de Melo, M. T., Manzano, M., Vaikmae, R., and Travi, Y.: Evolution of groundwater systems at the European coastline, Geol. Soc. SP, 189, 289–311, 2001.
Fitterman, D. V. and Deszcz-Pan, M.: Characterization of Saltwater Intrusion in South Florida Using Electromagnetic Geophysical Methods, Proceedings of the 18th Salt Water Intrusion Meeting, 31 May–3 June 2004, Cartagena, Spain, 2004.
Friborg, R.: Geologisk model for Tønder Nyhedsbrev, May 1989, Sønderjyllands Amt, 1989.
Friborg, R.: The landscape below the Tinglev outwash plain. A reconstruction, B. Geol. Soc. Denmark, 43, 34–40, 1996
Friborg, R. and Thomsen, S.: Kortlægning af Ribeformationen. Et fællesjysk grundvandssamarbejde, Technical report, Ribe Amt, Ringkøbing Amt, Viborg Amt, Århus Amt, Vejle Amt, Sønderjyllands Amt, ISBN no. 87-7486-359-2, 1999.
Gannon, J. P., Burbey, T. J., Bodnar, R. J., and Aylor, J.: Geophysical and geochemical characterization of the groundwater system and the role of Chatham Fault in groundwater movement at the Coles Hill uranium deposit, Virginia, USA, Hydrogeol. J., 20, 45–60, 2012.
GEUS: The National well database (Jupiter), available at: http://geuskort.geus.dk/GeusMap/index_jupiter.jsp?imgxy=622+403&iMapWidth=1244&iMapHeight=806, last access: 15 February 2012.
Hansen, J. M., Aagaard, T., and Binderup, M.: Absolute sea levels and isostatic changes of the eastern North Sea to central Baltic region during the last 900 years, Boreas, online first: https://doi.org/10.1111/j.1502-3885.2011.00229.x, 2011.
Heck, H.-L.: Grundwasserverhältnisse und geologischer Bau im schleswig-holsteinischen Marsch- und Nordseeinselgebiet, Sitzungsber. D. Preuss. Geol. Landesanstalt, 6, 169–196, 1931.
Heck, H.-L.: Das Grundwasser im Zusammenhang mit dem geologischen Bau Schleswig-Holsteins, Preuss. Geol. Landesanstalt, 133 pp., 1932.
Hinsby, K., Harrar, W. G., Nyegaard, P., Konradi, P. B., Rasmussen, E. S., Bidstrup, T., Gregersen, U., and Boaretto, E.: The Ribe Formation in western Denmark; Holocene and Pleistocene groundwaters in a coastal Miocene sand aquifer, Geol. Soc. SP, 189, 29–48, 2001.
Hinsby, K., de Melo, M. T. C., and Dahl, M.: European case studies supporting the derivation of natural background levels and groundwater threshold values for the protection of dependent ecosystems and human health, Sci. Total Environ., 401, 1–20, 2008.
Hoffmann, D.: Holocene landscape development in the marshes of the West Coast of Schleswig-Holstein, Germany, Quaternary Int., 112, 29–36, 2004.
Houmark-Nielsen, M.: Extent and age of Middle and Late Pleistocene glaciations and periglacial episodes in southern Jutland, Denmark, B. Geol. Soc. Denmark, 55, 9–35, 2007.
Høyer, A., Lykke-Andersen, H., Jørgensen, F., and Auken, E.: Combined interpretation of SkyTEM and high-resolution seismic data, Phys. Chem. Earth, 36, 1386–1397, 2011.
IPCC: Climate Change 2007 – The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change 2007: Synthesis Report. Contribution of Working Groups I, II and III to the Fourth Assessment. Report of the Intergovernmental Panel on Climate Change, edited by: Pachauri, R. K. and Reisinger, A., IPCC, Geneva, Switzerland, 104 pp., 2007.
Iribar, V., Carrera, J., Custodio, E., and Medina, A.: Inverse modelling of seawater intrusion in the Llobregat delta deep aquifer RID E-7251-2011, J. Hydrol., 198, 226–244, 1997.
Jacobsen, N. K.: Tøndermarskens Naturgeografi, Folia Geogr. Danm., 7, 350 pp., 1964.
Jørgensen, F. and Sandersen, P. B. E.: Buried and open tunnel valleys in Denmark – erosion beneath multiple ice sheets, Quaternary Sci. Rev., 25, 1339–1363, 2006.
Jørgensen, F. and Sandersen, P. B. E.: Buried valley mapping in Denmark: evaluating mapping method constraints and the importance of data density. Z. Dtsch. Ges. Geowiss., 160, 211–223, 2009.
Jørgensen, F., Lykke-Andersen, H., Sandersen, P. B. E., Auken, E., and Nørmark, E.: Geophysical investigations of buried Quaternary valleys in Denmark: An integrated application of transient electromagnetic soundings, reflection seismic surveys and exploratory drillings, J. Appl. Geophys., 53, 215–228, 2003.
Kafri, U. and Goldman, M.: The use of the time domain electromagnetic method to delineate saline groundwater in granular and carbonate aquifers and to evaluate their porosity, J. Appl. Geophys., 57, 167–178, 2005.
Kirkegaard, C., Sonnenborg, T., Auken, E., and Jørgensen, F.: Salinity distribution in heterogeneous coastal aquifers mapped by airborne electromagnetics, Vadose Zone J., 10, 125–135, 2011.
Kok, A., Auken, E., Groen, M., Ribeiro, J., and Schaars, F.: Using Ground based Geophysics and Airborne Transient Electromagnetic Measurements (SkyTEM) to map Salinity Distribution and Calibrate a Groundwater Model for the Island of Terschelling – The Netherlands 21st SWIM conference, Azores, 2010.
Konradi, P. B., Larsen, B., and Sørensen, A. B.: Marine Eemian in the Danish eastern North Sea, Quaternary Int., 133–134, 21–31, 2005.
Mullen, I. and Kellett, J.: Groundwater salinity mapping using airborne electromagnetics and borehole data within the lower Balonne catchment, Queensland, Australia, Int. J. Appl. Earth Obs., 9, 116–123, 2007.
Mulligan, A. E., Evans, R. L., and Lizarralde, D.: The role of paleochannels in groundwater/seawater exchange, J. Hydrol., 335, 313–329, 2007.
Nishikawa, T., Siade, A. J., Reichard, E. G., Ponti, D. J., Canales, A. G., and Johnson, T. A.: Stratigraphic controls on seawater intrusion and implications for groundwater management, Dominguez Gap area of Los Angeles, California, USA, Hydrogeol. J., 17, 1699–1725, 2009.
Nyboe, N. S., Jørgensen, F., and Sørensen, K. I.: Integrated inversion of TEM and seismic data facilitated by high penetration depths of a segmented receiver setup, Near Surf. Geophys., 8, 467–473, 2010.
Ødum, H.: Grundvandsforholdene i Tønder-Marsken, DGU, IV rk., 2, 17 pp., 1934.
Oude Essink, G. H. P.: Salt water intrusion in a three-dimensional groundwater system in the Netherlands: A numerical study, Transport Porous Med., 43, 137–158, 2001.
Oude Essink, G. H. P., van Baaren, E. S., and de Louw, P. G. B.: Effects of climate change on coastal groundwater systems: A modeling study in the Netherlands, Water Resour. Res., 46, W00F04, https://doi.org/10.1029/2009WR008719, 2010.
Post, V. and Abarca, E.: Preface: Saltwater and freshwater interactions in coastal aquifers RID E-6054-2011, Hydrogeol. J., 18, 1–4, 2010.
Rambøll: Seismisk kortlægning ved Tønder, Unpublished report, 2010.
Rasmussen, E. S.: Detailed mapping of marine erosional surfaces and the geometry of clinoforms on seismic data: a tool to identify the thickest reservoir sand, Basin Res., 21, 721–737, 2009.
Rasmussen, E. S., Dybkjær, K., and Piasecki, S.: Lithostratigraphy of the Upper Oligocene – Miocene succession of Denmark, Geol. Surv. Den. Greenl., 22, 92 pp., 2010.
Ribeiro, J.: Interaction of salt – fresh water using airborne TEM methods, Faculty of Science – Lisbon University, 2010.
Roth, B., Mikkelsen, P., and Auken, E.: SkyTEM Survey Tønder 2009, Leck 2008, Rens/Løgumgårde 2011, Department of Earth Sciences, Aarhus University, 2011.
Rumpel, H.-M., Binot, F., Gabriel, G., Siemon, B., Steuer, A., and Wiederhold, H.: The benefit of geophysical data for hydrogeological 3D modelling – an example using the Cuxhaven buried valley, Z. Dtsch. Ges. Geowiss., 160, 259–269, 2009.
Sandersen, P. B. E., Jørgensen, F., Larsen, N. K., Westergaard, J., and Auken, E.: Rapid tunnel valley formation beneath the receding Late Weichselian ice sheet in Vendsyssel, Denmark, Boreas, 38, 834–851, 2009.
Schamper, C., Auken, E., and Sørensen, K. I.: A new processing system for very early time SkyTEM101 data. 22nd International Geophysical Conference & Exhibition, ASEG 26–29 February 2012, Brisbane, Australia, Extended abstracts, 2012.
Scharling, P. B., Rasmussen, E. S., Sonnenborg, T. O., Engesgaard, P., and Hinsby, K.: Three-dimensional regional-scale hydrostratigraphic modeling based on sequence stratigraphic methods: a case study of the Miocene succession in Denmark, Hydrogeol. J., 17, 1913–1933, 2009.
Siemon, B., Christiansen, A. V., and Auken, E.: A review of helicopter-borne electromagnetic methods for groundwater exploration, Near Surf. Geophys., 7, 629–646, 2009.
Spechler, R. M.: The relation between structure and saltwater intrusion in the Floridan Aquifer System, Northeastern Florida 2001, in: US Geological Survey Karst Interest Group Proceedings, edited by: Kuniansky, E. L., Water-Resources Investigations Report 01-4011, 25–29, 2001.
Sørensen, K. I. and Auken, E.: SkyTEM – A new high-resolution helicopter transient electromagnetic system, Explor. Geophys., 35, 191–199, 2004.
Sørensen, K. I., Thomsen, P., Auken, E., and Pellerin, L.: The effect of Coupling in Electromagnetic Data. EEGS, Birmingham, England, 2001.
Steeples, D. W.: Shallow seismic methods, in: Hydrogeophysics, edited by: Rubin, Y. and Hubbard, S. S., Springer, 2005.
Steuer, A., Siemon, B., and Auken, E.: A comparison of helicopter-borne electromagnetics in frequency- and time-domain at the Cuxhaven valley in Northern Germany, J. Appl. Geophys., 67, 194–205, 2009.
Teatini, P., Tosi, L., Viezzoli, A, Baradello, L., Zecchin, M., and Silvestri, S.: Understanding the hydrogeology of the Venice Lagoon subsurface with airborne electromagnetics, J. Hydrol., 411, 342–354, 2011.
Thomsen, S.: Surveying Deep-seated Aquifers in Denmark, Proceedings of the 11th General Meeting of the Nordic Geodetic Commission, Copenhagen, 7–11 May, 526–537, 1990.
Thomsen, S.: Kortlægning af dybe grundvandsmagasiner. 1. Statusrapport. Kort- og Matrikelstyrelsen, Geodætisk-Seismisk afdeling samt Sønderjyllands Amt, Miljø- og Vandløbsvæsenet, 30 pp., 1991.
Vandenbohede, A., Hinsby, K., Courtens, C., and Lebbe, L.: Flow and transport model of a polder area in the Belgian coastal plain: example of data integration, Hydrogeol. J., 19, 1599–1615, 2011.
Viezzoli, A.: Processing and inversion of SkyTEM data, Leck, 2008, Aarhus Geophysics, 2009.
Viezzoli, A., Christiansen, A. V., Auken, E., and Sørensen, K. I.: Quasi-3D modeling of airborne TEM data by Spatially Constrained Inversion, Geophysics, 73, F105–F113, 2008.
Viezzoli, A., Auken, E., and Munday, T.: Spatially constrained inversion for quasi 3D modelling of airborne electromagnetic data – an application for environmental assessment in the Lower Murray Region of South Australia, Explor. Geophys., 40, 173–183, 2009.
Viezzoli, A., Tosi, L., Teatini, P., and Silvestri, S.: Surface water-groundwater exchange in transitional coastal environments by airborne electromagnetics: The Venice Lagoon example, Geophys. Res. Lett., 37, L01402, https://doi.org/10.1029/2009GL041572, 2010.
Werner, A. D. and Simmons, C. T.: Impact of sea-level rise on sea water intrusion in coastal aquifers, Ground Water, 47, 197–204, 2009.
Yechieli, Y., Kafri, U., Goldman, M., and Voss, C.: Factors controlling the configuration of the fresh-saline water interface in the Dead Sea coastal aquifers: synthesis of TDEM surveys and numerical groundwater modeling, Hydrogeol. J., 9, 367–377, 2001.
