Open PhD Position: Electrical Field Root Sensing

Applications are invited for a Doctoral Researcher position in the project "Structural and functional field root sensing using tomographic and endoscopic electrical impedance spectroscopy" funded by the Deutsche Forschungsgemeinschaft (DFG) in the framework of the Cluster of Excellence "PhenoRob: Robotics and Phenotyping for Sustainable Crop Production" ( In the project, spectral electrical impedance tomography (sEIT) will be applied in controlled rhizotron experiments to establish soil-root electrical relationships for the structural and functional monitoring of crop root systems at the field scale. The project contributes to PhenoRob's Core Project CP3 ("The Soil-Root-Zone").

The position is to be filled as soon as possible, at the latest from April 1, 2020, and is limited to December 31, 2023.

Your tasks:

  • Support the organization, implementation and operation of sEIT monitoring in controlled rhizotron experiments, with a focus on the established rhizotron facility at Selhausen.
  • Further develop and automatize existing sEIT processing schemes to handle large monitoring data sets.
  • Present results at conferences and publish them in peer-reviewed journals.

Your qualifications:

  • Excellent Master or an equivalent degree in Geophysics, Biophysics, Electrical Engineering or a related field.
  • Strong theoretical background in electrical imaging or electrical impedance spectroscopy.
  • Experience in programming (Python), data management and, preferably, field experimentation.
  • Excellent writing and oral communication skills along with the ability to work independently within an interdisciplinary research team.

We offer:

  • An open, stimulating and interdisciplinary working environment.
  • The opportunity of conducting research towards a PhD.
  • Salary according to the German Federal pay scale (75% TV-L E13).

Please send your application in electronic form (as a single pdf) with the relevant documentation (including letter of motivation, curriculum vitae, copy of Master's degree certificate and transcript of record, names and contact details of two referees) by January 6, 2020 to Prof. Dr. Andreas Kemna, Chair of Geophysics, Institute of Geosciences, University of Bonn, E-mail:

The University of Bonn is committed to diversity and equal opportunity. It is certified as a family-friendly university and aims to increase the number of women employed in areas where women are under-represented and to promote their careers. To that end, it urges women with relevant qualifications to apply. Applications will be handled in accordance with the Landesgleichstellungsgesetz (State Equality Act). Applications from suitable candidates with a certified disability or equivalent status are particularly welcome.

posted: 15 November 2019     Please mention EARTHWORKS when responding to this advertisement.