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TopSoil Interreg

The climate challenge in the near subsurface

The overall objective of the project is the joint development of methods to describe and manage the uppermost 30m of the subsurface, in order to improve the climate resilience of the North Sea Region. In the project there are 24 partners from five different countries in the north-sea region including; Denmark, Belgium, Germany, Netherlands and the United Kingdom.

In the pilot area of Sunds we are working together with Herning Municipality, Central Denmark Region and GEUS to deal with high groundwater table in the town Sunds. Basement are reguaraly getting flooded, something, we hope to prevent by improving the understanding of the hydrogeological setting through mapping with geophysical methods such as tTEM, GCM, ERT/IP and WalkTEM.

In the Provinche of Drenthe, there is a large nature200 area, with a complex geological setting. Groundwater extraction is done in the area, so there is a need to understand the soil structures in the upper 30 meters, in order to project the scarce resources in the densely populated country.  HGG and Provinche Drenthe have joined forces to improve the geological understand through a high-resolution SkyTEM mapping with special focus on the shallow part of the ground.

In the towns of Elev and Vildbjerg, one can find point-source contaminations due to landfills and/or agricultural use. HGG and Central Denmark Region have selected these two sites to investigate if we can improve the way geophysics is used to investigate polluted sites. This is carried out by both improving the traditional geophysical investigations and developing new geophysical instruments and methodologies. The aim is to get a quicker and more precise pollution risk assessment, by including 3D mapping with instruments like GCM and tTEM.

In Gedved, HGG are together with Horsens Municipality, Central Denmark Region and a local farmer looking into how targeted regulation of fertilizers can help obtain sustainable intensification. That means investigating the potential for natural breakdown of pollutants in the subsurface groundwater. In the project, we assist with a detailed 3D geophysical model of the study area by means of tTEM.

  • tTEM
  • tMag
  • GCM
  • ERT/IP
  • WalkTEM
  • Municipality of Horsens
  • Municipality of Herning
  • GEUS
  • Central Denmark Region
  • Region Southern Denmark
  • Provinche Drenthe
  • HGG, Department of Geoscience, Aarhus University