PhD student position in applied geophysics on three-dimensional inverse modelling of controlled-source electromagnetic data
Sort on published: 2017-11-01
Uppsala University is a comprehensive research-intensive university with a strong international standing. Our mission is to pursue top-quality research and education and to interact constructively with society. Our most important assets are all the individuals whose curiosity and dedication make Uppsala University one of Sweden’s most exciting workplaces. Uppsala University has 40,000 students, 7,000 employees and a turnover of SEK 6.5 billion.
The Department of Earth Sciences at Uppsala University will start coordinating and conducting research within a Europe-wide H2020 Research-Innovation-Action (RIA) project related to new exploration technologies for mineral resources. While the focus will be on geophysical instruments and methods (covering a wide range from electromagnetic to seismic methods), there are also aspects related to data (geological and geochemical) and target generations. The department is the largest and broadest as such in Sweden and includes Geophysics, Geology, Palaeontology, Hydrology, Meteorology and Natural resources programs. It is located next to the Geological Survey of Sweden (SGU) allowing a great level of interaction with researchers from SGU.
The advertised PhD student position in applied geophysics on three-dimensional inverse modelling of controlled-source electromagnetic data is open in the Geophysics Programme of the Department of Earth Sciences. This research project will focus on the further development of a three-dimensional finite-difference modelling algorithm for controlled-source electromagnetic data to inversion including field measurements and application of the modelling algorithm to the data collected as part of the H2020 project.
Duties/Project description: The PhD project aims at developing a general 3D inversion code for controlled-source electromagnetic (CSEM) data that can be applied to frequency- and time-domain measurements performed in the air, on the Earth's surface and in boreholes. This code will be based on an existing CSEM finite-difference forward modelling code developed by a project partner at Aarhus University, Denmark, that is branched into frequency- and time-domain parts. The development of the inversion code will be performed jointly with Aarhus University. However, the focus of development at Uppsala University will be on 3D inversion of surface and borehole CSEM measurements, whereas Aarhus University will focus on inverse modelling of airborne CSEM data. As compared to other codes, the new 3D inversion code is envisaged to have advantages in terms of its general applicability and the possibility to perform joint inversions of airborne, ground-based and borehole frequency- and time-domain CSEM measurements. It will contribute to taking industry practice for inversion of airborne measurements and ground-based and borehole measurements from laterally constrained 1D inversion and thin-sheet modelling, respectively, to 3D inversion. Thus, it is expected to lead to more comprehensive models than currently available.
The successful candidate will be given ample opportunity to develop skills in electromagnetic field theory, numerical methods such as finite-difference and finite-element methods, numerical linear algebra and gradient-based inversion techniques (e.g. non-linear conjugate gradient methods or quasi-Newton methods), parallel programming, acquisition and processing of electromagnetic field data and interpretation of multi-dimensional resistivity models inverted from electromagnetic data.
Requirements: The applicant should have a university degree at MSc level in geophysics, computer sciences, applied mathematics, physics or similar. A solid basis in mathematics and physics and adequate knowledge of programming languages (e.g. MATLAB, C++ or modern FORTRAN) are requirements. Experience with parallel computation will be an advantage. Knowledge of geologic and tectonic processes will be considered an advantage. Further, it is an advantage to have a valid driver’s licence (class B or higher).
Position: The holder of a PhD student position shall primarily devote his/her time to own research studies. Other departmental work, such as teaching assistantship, can be part of the position with a maximal time contribution of 20%. The total project duration is four to five years. The applicant must be eligible for PhD studies. Priority is given to those who are deemed to show the greatest aptitude for a successful completion of graduate studies.
Rules governing Ph.D. candidates are set out in the Higher Education Ordinance Chapter 5, §§ 1-7 and in Uppsala university's rules and guidelines http://regler.uu.se/search/?hits=30&languageId=1&search-language_en=English
How to apply: Applications should include a letter of motivation including contact details of two referees, a CV, a list of publications (if any) and university transcripts and diploma (including the MSc certificate if already available) and a list of courses and grades.
Uppsala University strives to be an inclusive workplace that promotes equal opportunities and attracts qualified candidates who can contribute to the University’s excellence and diversity. We welcome applications from all sections of the community and from people of all backgrounds. A majority of PhD students within the department are men. Women are, thus, especially invited to apply.
Pay: According to local agreement for PhD students and teaching assistants.
Starting: 2017-12-01 or as agreed upon, temporary position ending 2021-11-30.
Working hours: 100 %
For further information about the position please contact
Thomas Kalscheuer, phone: +46 18 4713819, e-mail: firstname.lastname@example.org.
You are welcome to submit your application no later than 2017-11-15, UFV-PA 2017/3648.
Are you considering moving to Sweden to work at Uppsala University? If so, you will find much information about working and living in Sweden at www.uu.se/joinus. You are also welcome to contact the International Faculty and Staff Services at email@example.com.
We decline offers of recruitment and advertising help. We only accept the application the way described in the advertisement.
Placement: Department of Earth Sciences
Type of employment: Full time , Temporary position longer than 6 months
Pay: Fixed pay
Number of positions: 1
Working hours: 100 %
County: Uppsala län
Per Sundman, Saco-rådet
Suzanne Borén Andersson, TCO/ST 018-471 6251
Ellena Papaioannou, Seko 018-471 3315
Number of reference: UFV-PA 2017/3648
Last application date: 2017-11-15