PhD scholarship in Magnetometry and Geophysical Inversion
DTU Space

PhD scholarship in Magnetometry and Geophysical Inversion

DTU Space

Apply no later than 25 April 2019

DTU Space is seeking an applicant for a 3-year fully funded PhD position in magnetometry-based UXO detection and inversion to start in May 2019. The research field will focus upon a probabilistic inversion approach to analyse magnetic measurements of UXO from three offshore wind farms in the North Sea. The PhD position will be a collaborative effort between DTU Space, University of Århus (Denmark) and the Danish wind farm developer Ørsted A/S.


Magnetometry is a widely used method to detect ferrous Unexploded Ordnance (UXO) in both land and marine enviroments. Clearing a site for UXO is vital, for instance, for the offshore wind farm industry in former war zone areas. However, unreliable estimates of the volume, shape, position and depth of UXO increase the risk of uncontrolled explosions during clearance, which lead to increased costs due to excessive and often unnecessary safety precautions by the industry. By adopting advanced geophysical inversion and data interpretation techniques, we intend to make UXO characterization more reliable and, hence, UXO clearance more cost-efficient in both land and marine environment


Responsibilities and tasks

  • Your responsibility is to develop a software package to handle large datasets of magnetic survey data in order to automatically detect and analyse potential UXO anomalies

  • You will work closely together with Ørsted and implement historical UXO data from three windfarms in the North Sea as part of the software package.


Candidates should have a master's degree (120 ECTS) in geophysics, engineering or a similar degree with an academic level equivalent to the master's degree in engineering.

  • You have a strong background in geophysics with a focus on magnetic data acquisition/theoryand potential fields. You preferably have prior experience in geophysical environmental studies of UXO.

  • You have strong knowledge in common inversion procedures and inversion methods in a Bayesian framework, where Markov Chain Monte Carlo simulations are used to assess highly non-linear equations. In depth knowledge of Bayesian data analysis is essential.

  • You have strong programming skills within Matlab and/or Python.

  • Willingness to travel and work in an international environment as well as performing field work.

  • You are a creative person and eager to collaborate with both researchers at the university as well as industry people from Ørsted A/S in order to optimize the end-product in an iterative development process.

  • You are independent and not afraid to take a lead.

Approval and Enrolment

The scholarship for the PhD degree is subject to academic approval, and the candidate will be enrolled in one of the general degree programmes at DTU. For information about our enrolment requirements and the general planning of the PhD study programme, please see the DTU PhD Guide.



The assessment of the applicants will be made by Senior Researcher Arne Døssing Andreasen (Head of Crustal Magnetism Technology and Research Group, Div of Geomagnetism, DTU Space) and Associate Professor Thomas Mejer-Hansen (University of Århus).


We offer
DTU is a leading technical university globally recognized for the excellence of its research, education, innovation and scientific advice. We offer a rewarding and challenging job in an international environment. We strive for academic excellence in an environment characterized by collegial respect and academic freedom tempered by responsibility.


Salary and appointment terms

The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations. The allowance will be agreed upon with the relevant union. The period of employment is 3 years. The scholarship includes funding for travel and IT.


Workplace will predominantly be at DTU (Lyngby Campus) with multiple shorter periods at University of Århus (Denmark) and at Ørsted A/S (Copenhagen). 


You can read more about career paths at DTU here.


Further information

Further information may be obtained from Arne Døssing Andreasen, DTU Space, phone +45 45 25 97 73, email:


You can read more about DTU Space on



Please submit your online application no later than 25 April 2019 (local time). 


To apply, please open the link "Apply online", fill out the online application form. The following must be attached in English:

  • A letter motivating the application (cover letter)

  • Curriculum vitae

  • Grade transcripts and BSc/MSc diploma

  • Excel sheet with translation of grades to the Danish grading system (see guidelines and Excel spreadsheet here)

Candidates may apply prior to obtaining their master's degree but cannot begin before having received it.


Applications and enclosures received after the deadline will not be considered.

All interested candidates irrespective of age, gender, race, disability, religion or ethnic background are encouraged to apply.


DTU Space has about 155 employees, an annual turn-over of about 150 MDKK and it is located at the Lyngby Campus of the Technical University of Denmark together with 19 other institutes within the technical sciences. As the National Space Institute, DTU Space is the leading institution of public space activities in Denmark. The mission of the Institute is to conduct research, development, public sector consultancy, education and innovation at the highest international level within the following areas: Space Technology & Instrumentation, Earth Observation & Geoscience and Space- & Astro-physics.


DTU is a technical university providing internationally leading research, education, innovation and scientific advice. Our staff of 6,000 advance science and technology to create innovative solutions that meet the demands of society, and our 11,200 students are being educated to address the technological challenges of the future. DTU is an independent academic university collaborating globally with business, industry, government and public agencies. 

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