E3S Web Conf.
Volume 54, 201825th Salt Water Intrusion Meeting (SWIM 2018)
|Number of page(s)||7|
|Published online||17 September 2018|
Characterization of a regional coastal zone aquifer using an interdisciplinary approach – an example from Weser-Elbe region, Lower Saxony, Germany
Leibniz Institute for Applied Geophysics (LIAG), Hannover, Germany
2 Geological Survey of Lower Saxony (LBEG), Hannover, Germany
3 Federal Institute for Geosciences and Natural Resources (BGR), Hannover, Germany
Contact Information: M. Azizur Rahman, Leibniz-Institut für Angewandte Geophysik, Stilleweg 2, 30655 Hannover, Germany, Tel: +49-(0)511-6433234, Fax: +49-(0)511-6433665; Email: MohammadAzizur.Rahman@liag-hannover.de
In this study, interdisciplinary approaches are considered to characterize the coastal zone aquifer of the Elbe-Weser region in the North of Lower Saxony, Germany. Geological, hydrogeological, geochemical and geophysical information have been considered to analyze the current status of the aquifers. All the information collectively states that the salinity distribution in the subsurface is heterogeneous both horizontally and vertically. Early age flooding also contributed to this heterogeneity. No general classification of groundwater quality (according to some piper diagrams) could be identified. Helicopter-borne electro-magnetic data clearly show the presence of freshwater reserves below the sea near the west coast. Groundwater recharge largely happens in the moraine ridges (west side of the area) where both the surface elevation and the groundwater level are high. Consequently, submarine groundwater discharge occurs from the same place. All these information will facilitate to develop the planned density driven groundwater flow and transport model for the study area.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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