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Advances in Geosciences An open-access journal for refereed proceedings and special publications
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Volume 45 | Copyright
Adv. Geosci., 45, 177-184, 2018
https://doi.org/10.5194/adgeo-45-177-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

  21 Aug 2018

21 Aug 2018

3-D Simulations of Groundwater Utilization in an Urban Catchment of Berlin, Germany

Nasrin Haacke1,2, Maximilian Frick1,2, Magdalena Scheck-Wenderoth1,3, Michael Schneider2, and Mauro Cacace1 Nasrin Haacke et al.
  • 1GFZ German Research Centre for Geosciences, Section 6.1: Basin Modelling, Telegrafenberg, 14473 Potsdam, Germany
  • 2Free University Berlin, Institute of Geological Sciences, Malteserstr. 74–100, 12249 Berlin, Germany
  • 3RWTH Aachen University, Institute of Geology and Geochemistry of Petroleum and Coal, Lochnerstrasse 4–20, 52056 Aachen, Germany

Abstract. The objective of this study is to analyze the influence of groundwater pumping on predicted groundwater circulation below the urban center of Berlin, Germany, by 3-D numerical models. Of particular interest are hydraulic head distributions, the related shallow-deep groundwater interactions and their scale dependency within an anthropogenically overprinted environment. For this purpose, two model scenarios are investigated. In the first model realization (Model 1), the effects of groundwater pumping are implemented by imposing a fixed, though spatially variable, hydraulic head distribution over the whole model area, therefore implicitly taking into account the effects of pumping activities. In the second model realization (Model 2), these effects are considered in an explicit manner by imposing variable production rates in locations where pumping activities are ongoing.

The results of this study show, that both models predict similar hydraulic head distributions on the regional scale (i.e. urban wide). Locally, differences in the extent, volume and depth of emerging depression cones can be observed. This is manifested in differences in predicted fluid flow patterns supporting or refuting the possibility of contaminant transport in an area of importance for groundwater production (Lower Havel). Herein, the second model approach outlines the necessity of implementing wells as an active parameter to reproduce observed fluid pathways.

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The main goal of this study was to understand how different realizations of the impact of groundwater pumping activities in a major urban center would affect the results of 3-D numerical models. In detail we looked at two model scenarios which both rely on the same geological structural model but differ in the realization of the groundwater boundary conditions. The results show, that it is necessary to use groundwater wells as an active parameter to reproduce local movement patterns.
The main goal of this study was to understand how different realizations of the impact of...
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