Assessing and improving data quality in the transient electromagnetic method via digital signal processing

PhD defense, Friday 3 November 2017. Søren Rasmussen.

2017.11.03 | Liselotte Kaspersen Heller

Søren Rasmussen

During his studies, Søren has researched ways to quantify and improve the quality of data, measured using the transient electromagnetic method (TEM). TEM is a geophysical method, which is used to map the subsurface of the earth by measuring its response to a controlled electromagnetic excitation. The resulting maps can for example be used for mapping and vulnerability assessment of groundwater resources.

The accuracy of the subsurface maps is limited by noise in the measurements. Sørens research has contributed with methods for quantifying and reducing this noise, resulting in more accurate maps, which ultimately gives an improved basis for decision making based on TEM surveys.

The PhD degree was completed at the Department of Engineering, Science and Technology, Aarhus University.

This résumé was prepared by the PhD student.

Time: Friday 3 November 2017 at 13:00.
Place: Building 5125, room 424, Finlandsgade 22, 8200 Aarhus N.
Title of dissertation: Assessing and Improving Data Quality in the Transient Electromagnetic Method via Digital Signal Processing
Contact information: Søren Rasmussen, e-mail:, tel.: +45-2180-5140
Members of the assessment committee:
Professor Thorkild Maack Rasmussen, Luleå University of Technology, Sweden.
Assistant Professor Cyril Schamper, University Pierre et Marie Curie, France.
Professor Preben Kidmose (chair), Department of Engineering, Aarhus University.
Main supervisor:
Associate professor Jakob Juul Larsen, Department of Engineering, Aarhus University.
Language: The PhD dissertation will be defended in English.

The defence is public.
The dissertation is available for reading at the Graduate School of Science and Technology/GSST, Ny Munkegade 120, building 1520, rooms 128-134, 8000 Aarhus C.  



PhD defence
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Revised 23.02.2018