LIAG
 

Section 2: Geoelectrics and Electromagnetics

Section members in March 2016 (from left to right): Frank Oppermann, Tamas Lukasz, Marion Miensopust, Sam Stadler, Mathias Ronczka, Mike Müller-Petke, Dieter Epping, Jan Igel, Markus Loewer, Nico Skibbe, Michael Grinat, Raphael Rochlitz, Thomas Günther (Angelika Ullmann and Robert Meyer are missing)

The section "Geoelectrics and Electromagnetics" is doing experimental and theoretical work on direct current geoelectrics, induced polarisation, low frequency electromagnetics and GPR. The research activities contribute to the exploration of accessible underground zones and are classified within three disciplines: Methodological Developments in Geoelectrics, Shallow Structure Exploration, and Technical Developments.

The work of the section concentrates on the development of new methods and equipment. A great deal of work is also carried out in the other key research areas: groundwater systems - structure, quality, processes and terrestrial sediment archives / structure, genesis, age as well as part of the junior research group “subrosion”

Electric surveying methods such as direct current geoelectrics, induced polarisation, and electromagnetics, are particularly useful for the exploration of groundwater systems, ore bodies, landfills, and contaminated sites. They are also being increasingly used in mine clearance, modern agriculture, paedology and archaeology - areas where ground radar is also being successfully used.

Social relevance

Exploring the underground at depths influenced by anthropogenic effects provides greater understanding of the structure and dynamics of the uppermost part of the earth’s crust, and therefore has economic as well as ecological relevance. Underground geological structures can be surveyed with the help of high resolution geoelectric and electromagnetic techniques. In recent years, there has been a considerable increase in the significance of shallow investigations. Findings from the shallow surveys are of interest to modern agriculture, soil scientists, the clean-up of environmental pollution, as well as clearing anti-personnel mines.

The wide range of geophysical methods available to the section have proven to be indispensable for the solution of the questions put to the group. When tackling these questions, and for the purposes of the disciplines used by the section, the work involves the development of new methods or optimisation of existing methods, as well as their field testing, and development for practical applications.