Postdoc position in monitoring of groundwater resources using transient electromagnetics

The HydroGeophysics Group (HGG) at Department of Geoscience at Aarhus University advertises a postdoc position within transient electromagnetics. The position is anchored in an on-going research project, SuperTEM, where novel monitoring and semi-airborne TEM systems will be developed.

The position is expected to begin June 1, 2021 or as soon as possible thereafter and the position has a duration of 3 years.

The applicant will be part of a group of scientists, engineers, software developers, postdocs, and PhD students from all over the world. The research group covers many aspects within geophysics including building instruments, development of inversion software, and applying TEM, ERT/IP and MRS methods in projects with focus on mapping and monitoring of groundwater, hydrogeology, raw materials, and contaminations.

Project description:

Groundwater is an integral part of satisfying global water needs, often representing a water source at lower contamination risk than surface water. Yet, proactive management practices must be implemented to ensure long-term sustainable use of groundwater resources, as overexploitation can deplete groundwater reserves – effectively supplying a short-term fix to problems requiring long-term solutions.

A key component of informed data-driven management practices is high-resolution characterization of hydrogeological systems, a step that can be well-addressed through the use of non-invasive geophysical techniques. Transient electromagnetics (TEM) is particularly adept at rapid cost-efficient mapping of geological systems. TEM systems can be man-deployed or towed by an ATV or aircraft, each system with their respective advantages and disadvantages. However, standard TEM mapping practices are generally focused on spatial characterization – producing snap-shots of hydrological systems at an instant in time. This information is extremely valuable when populating groundwater models or characterizing groundwater systems but can often leave uncertainties as to the behaviour of groundwater systems over time.

A primary focus of this postdoctoral project will be the development, field validation, and deployment of monitoring TEM systems designed for long-term deployment, autonomous operation, and data-streaming to remote servers. This work will involve coupling numerical studies focused on time-lapse inversion of TEM data, assistance with instrument testing/validation, and field data collection where long-time series will be collected in locations of dynamic groundwater systems. Monitoring TEM systems will be deployed in multi-year campaigns in both Denmark and internationally.

A second focus of this project is the support of parallel semi-airborne TEM system coupling groundbased transmitters with a roving drone-carried receiver. This work will involve supporting drone-based mapping campaigns and subsequent data workflows, including signal processing, inversion, and interpretation of results. Validation of semi-airborne systems will also require the applicant to participate in comparison studies with complementary TEM systems (eg. the towed transient electromagnetic system tTEM).

The applicant will also be required to play a significant project management role in the Innovation Fund Denmark project titled SuperTEM, coordinating between partners, overseeing project meetings, and tracking progress towards project milestones/deliverables.

Qualifications and specific competences:

Education :

PhD degree in Geophysics/Hydrogeophysics or relevant field (eg. Physics, Engineering or similar discipline) from a renowned institution/university

Experience: * Background in electrical or electromagnetic methods, previous experience in transient electromagnetics is an advantage.

  • Significant background in programming and numerical modelling. Matlab and fortran experience are preferred.
  • Long record of geophysical field work and working with field data.
  • Strong organizational skills, previous project management experience is preferred.
  • Applicant must have written several scientific papers and have significant experience presenting scientific results at conferences and meetings.

The project also requires that the applicant be willing to participate in international field campaigns (likely in sub-Saharan Africa) that will last ~1 month in duration and that could occur twice per year.


Applicants seeking further information are invited to contact:

Denys Grombacher, Assistant Professor, Department of Geoscience

Email :

Place of employment and place of work:

The place of employment is Aarhus University, and the place of work is Department of Geoscience, Høegh-Guldbergs Gade 2, 8000 Aarhus C, Denmark.

The beautiful Aarhus University campus is located close to downtown Aarhus, the second largest city in Denmark with 400 000 inhabitants. It has a lively and charming downtown close to Aarhus Bay. In Denmark, schools, higher education, and health care are free.

Application deadline

All applications must be made online and received by April 16, 2021. The application must be submitted via Aarhus University’s recruitment system, which can be accessed under the job advertisement on Aarhus University’s website.

Application procedure

Shortlisting is used. This means that after the deadline for applications – and with the assistance from the assessment committee chairman, and the appointment committee if necessary, – the head of department selects the candidates to be evaluated. All applicants will be notified whether or not their applications have been sent to an expert assessment committee for evaluation. The selected applicants will be informed about the composition of the committee, and each applicant is given the opportunity to comment on the part of the assessment that concerns him/her self. Once the recruitment process is completed a final letter of rejection is sent to the deselected applicants.

Letter of reference

If you want a referee to upload a letter of reference on your behalf, please state the referee’s contact information when you submit your application. We strongly recommend that you make an agreement with the person in question before you enter the referee’s contact information, and that you ensure that the referee has enough time to write the letter of reference before the application deadline. Unfortunately, it is not possible to ensure that letters of reference received after the application deadline will be taken into consideration.

Formalities and salary range

Natural Sciences refers to the Ministerial Order on the Appointment of Academic Staff at Danish Universities under the Danish Ministry of Science, Technology and Innovation .

The application must be in English and include a curriculum vitae, degree certificate, a complete list of publications, a statement of future research plans and information about research activities, teaching portfolio and verified information on previous teaching experience (if any). Guidelines for applicants can be found here.

Appointment shall be in accordance with the collective labour agreement between the Danish Ministry of Finance and the Danish Confederation of Professional Associations. Further information on qualification requirements and job content may be found in the Memorandum on Job Structure for Academic Staff at Danish Universities .

Salary depends on seniority as agreed between the Danish Ministry of Finance and the Confederation of Professional Associations.

All interested candidates are encouraged to apply, regardless of their personal background. Research activities will be evaluated in relation to actual research time. Thus, we encourage applicants to specify periods of leave without research activities, in order to be able to subtract these periods from the span of the scientific career during the evaluation of scientific productivity.

Aarhus University offers a broad variety of services for international researchers and accompanying families, including relocation service and career counselling to expat partners. Read more . Please find more information about entering and working in Denmark target=”_bla

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