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Kars, R.H. (author), Busschers, F.S. (author), Wallinga, J. (author)
Recent developments have opened up the possibilities of using potassium feldspar for dating Pleistocene sediments; a stable (less-fading) part of the infrared stimulated luminescence (IRSL) signal can be selected by largely depleting the unstable part of the IR signal, using a combination of thermal and IR stimulation: post IR-IRSL dating (pIR...
article 2012
document
Faneca S̀anchez, M. (author), Gunnink, J.L. (author), van Baaren, E.S. (author), Oude Essink, G.H.P. (author), Siemon, B. (author), Auken, E. (author), Elderhorst, W. (author), de Louw, P.G.B. (author)
The forecast of climate change effects on the groundwater system in coastal areas is of key importance for policy makers. The Dutch water system has been deeply studied because of its complex system of low-lying areas, dunes, land won to the sea and dikes, but nowadays large efforts are still being done to find out the best techniques to...
article 2012
document
Lee, J.R. (author), Busschers, F.S. (author), Sejrup, H.P. (author)
Within this paper we review the pre-Weichselian glacial history of northern Europe focussing on evidence from the British Isles, Netherlands, Norway and adjacent marine areas that record the activity of the British (BIS) and Scandinavian (SIS) ice sheets. The objective of the paper is to examine the long-term evolution of the two ice sheets in...
article 2012
document
Gunnink, J.L. (author), Bosch, J.H.A. (author), Siemon, B. (author), Roth, B. (author), Auken, E. (author)
article 2012
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van Dijk, T.A.G.P. (author), van Dalfsen, J.A. (author), van Lancker, V. (author), van Overmeeren, R.A. (author), van Heteren, S. (author), Doornenbal, P.J. (author)
Marine ecosystems on continental shelves endure an increasing burden of human activity offshore, and the impacts on benthic habitats are not well known. An improved understanding of how benthic habitats vary in relation to substrate types and seabed features is therefore essential to both scientists and offshore developers. This case study shows...
bookPart 2012
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Sutanudjaja, E.H. (author), van Beek, L.P.H. (author), de Jong, S.M. (author), van Geer, F.C. (author), Bierkens, M.F.P. (author)
The European Remote Sensing Soil Water Index (ERS SWI) fields, providing spatio-temporal soil moisture expressions, should be able to infer groundwater dynamics. In this study, we explore the possibility of using them to calibrate a coupled groundwater-land surface model. We apply a brute force calibration procedure by running several scenarios...
conference paper 2012
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Bakker, M.A.J. (author), van Heteren, S. (author), Vonhgen, L.M. (author), van der Spek, A.J.F. (author), van der Valk, B. (author)
Much of the Dutch coast has been subject to structural erosion. From 1990 onward, sand nourishments have been used under a government policy of dynamic preservation. Annual monitoring and field inspections show that the structural erosion has decreased or even turned into coastal progradation after 1990. The monitoring data concern only...
article 2012
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van Geer, F.C. (author)
report 2012
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de Lange, G. (author), Bakr, M. (author), Gunnink, J.L. (author), Huisman, D.J. (author)
Weak soils like unconsolidated clay and peat may deform and compress considerably by loading, for example, by sand bodies for roads and railways. Archaeological sites within such easily compressible soil layers may therefore be heavily affected by different kinds of construction works. The vulnerability of archaeological sites to compression is...
article 2012
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Noorlandt, R.P. (author), de Kleine, M.P.E. (author), Kruiver, P.P. (author), Bakker, M.A.J. (author), Mesdag, C.S. (author), Hoogendoorn, R.M. (author)
A geophysical survey has been carried out on the Juliana Canal and levee in the south of the Netherlands. For a stretch of about 35 km along this canal various construction works are planned, to deepen and widen the canal. The canal is in a geological setting such that leakage from the canal to the surrounding landscape during the construction...
conference paper 2011
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van Geer, F. (author), Rozemeijer, J. (author), van der Velde, Y. (author), Broers, H.P. (author), de Rooij, G. (author)
As part of two PhD projects, we installed ion-selective electrodes and passive samplers for monitoring nitrate concentrations in a 7 km 2 catchment and compared the results to grab samples. We also monitored nitrate concentrations at the catchment outlet. We tested the effectiveness of these monitoring approaches to estimate the long-term...
conference paper 2011
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Griffioen, J. (author), Klein, J. (author), Heerdink, R. (author)
Sustainable groundwater management asks for good insight into the geochemical characteristics of the groundwater aquifers. A nationwide environmental geochemical characterisation of shallow sedimentary deposits was initiated in the Netherlands to meet this information need. The methodology is briefly outlined and some results are presented for...
conference paper 2011
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Maljers, D. (author), Stafleu, J. (author), Busschers, F. (author), Gunnink, J.L. (author)
The Geological Survey of the Netherlands aims at building a 3D geological property model of the upper 30 meters of the Dutch subsurface. This model, called GeoTOP, provides a basis for answering subsurface related questions on, amongst others, sand and gravel resources. Modelling is carried out per province using a core-database containing...
conference paper 2010
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Paap, B.F. (author), Dubelaar, C.W. (author), Gunnink, J.L. (author)
Mapping of the Dutch Wadden Sea is a major challenge as it is an intertidal zone and therefore has limited accessibility by surveying vessels. Hence, the current subsurface model of the Dutch Wadden Sea is based on a sparse density of lithological information derived from core samples and seismic data. To improve the vertical and lateral detail...
conference paper 2010
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Zhang, Y.C. (author), Slomp, C.P. (author), van Cappellen, P. (author), Broers, H.P. (author), Passier, H.F. (author), Böttcher, M.E. (author), Omoregie, E.O. (author), Lloyd, J.R. (author), Polya, D.A. (author)
Denitrification coupled to pyrite oxidation is a natural attentuation process for nitrate in groundwater. Side effects include the mobilization of trace metals, the production of sulfate and changes in groundwater pH. These changes all potentially threaten groundwater quality. In this study, we investigate this process in a sandy aquifer using...
conference paper 2010
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