Ph.D Student in Space Physics / Atmospheric Science (dnr: Dnr. 2.2.1-165/26)
The Swedish Institute of Space Physics (IRF) is in collaboration with the Department of Meteorology at Stockholm University (MISU) looking for a person who is interested in studying the atmospheric effects of spacecraft re-entry.
Description
The number of satellites is increasing at an unprecedented rate. Decommissioned satellites eventually re-enter the atmosphere. When the material ablates, residues remain in the atmosphere, which is a complex system consisting of several layers. The altitude at which the material is deposited, its state and the size of the particles produced are still unknown. The objective of the project is to assess the large-scale impacts of space activities on Earth’s atmosphere, enabling the space industry to make well-informed decisions regarding the sustainable use of space. The topic is interdisciplinary and the project will be carried out in close collaboration between IRF and MISU. The project is financed by the Swedish Space Research School (SSRS) - a national graduate school in space science and space technology, jointly administered by a consortium of Swedish universities and research institutes, and funded by the Swedish National Space Agency. The overarching objective of SSRS is to reinforce Sweden’s long‑term provision of expertise, to offer a coordinated and high‑quality doctoral education, and to foster interdisciplinary collaboration across the Swedish space sector.
Job description
High-quality observational data on re-entries across a wide range of object sizes obtained using various instrumental techniques are required in order to assess the atmospheric effects of spacecraft re-entry and to determine what measures, if any, need to be taken in response to these effects.
The planned research work for the PhD student include (but is not limited to):
1) Collecting and analysing data on atmospheric re-entry from, for example, radar systems (such as EISCAT, EISCAT_3D, the Nordic Meteor Radar Cluster or SIMONe) and optical systems (ALIS_4D or the Global Meteor Network). Planning and carrying out observational campaigns ahead of know re-entries.
2) Integrating the empirical results from re-entry observations into atmospheric models (such as Whole Atmosphere Community Climate Model – WACCM). Determining which properties of the re-entering material are decisive for its final impact on the atmosphere.
Qualification requirements
In order to be admitted to postgraduate education, the applicant must have the general and specific entry requirements. The qualification requirements must be fulfilled before admission to the programme.
You meet general entry requirements if you have completed a second-cycle degree, or completed courses equivalent to at least 240 higher education credits, of which 60 credits must be in the second cycle, or have otherwise acquired equivalent knowledge in Sweden or elsewhere.
The specific entry requirements additionally require a minimum of 90 higher education credits in any of the fields of physics, meteorology, oceanography or chemistry; and at least 15 higher education credits in mathematics as well as a degree project of at least 15 higher education credits. At least 60 higher education credits of these courses must be on the second-cycle level. In addition, proficiency in English language, equivalent to English B in Swedish high school, is required.
The specific entry requirements may also be fulfilled by a person who has otherwise acquired equivalent knowledge in Sweden or elsewhere.
General syllabus for doctoral studies in Atmospheric Sciences and Oceanography (SU FV 4.1.1-2572-20). For more information about the PhD programme at MISU, please contact the head of subject, Professor Thorsten Mauritsen (thorsten.mauritsen@misu.su.se).
Merits
The applicant is expected to have completed a relevant master’s degree by the start of employment and to possess in-depth knowledge of physics. The following are desirable, but not essential:
- Knowledge of the atmosphere and ionosphere
- Knowledge of ablation processes
- Experience of instrument-level data analysis
- Experience of physical modelling
- Experience of programming
Selection
The selection between candidates who meet the entry requirements will be made with reference to their ability to benefit from the training. However, the fact that an applicant is deemed able to transfer credits from previous training or professional experience may not alone give the applicant priority over other applicants in the selection process. Admission decisions are made in accordance with current delegation policies.
The selections process takes into account the familiarity and skill of the subject, ability to communicate in spoken and written English, analytical ability, creativity, initiative and independence, and ability to interact in group. The selection is based on the relevance of previous studies, grades of higher education courses (especially those at second-cycle level), quality and scope of degree projects, references, interviews, and supplemented letter of intent.
Admission Regulations for Doctoral Studies at Stockholm University.
What we offer
We offer a workplace with flexible working hours, up to seven weeks of vacation per year, comprehensive healthcare including wellness programs and health benefits.
Equality, equal opportunity, and diversity are fundamental principles in our workplace. We work in an equality-integrated manner, meaning that gender and diversity aspects are considered in daily work and all decision-making processes.
Terms
The position is for a period of four years. The PhD student’s placement of work and research time will be divided roughly equally between IRF’s headquarters in Kiruna and MISU in Stockholm, subject to agreement with the successful candidate. Start date: September 2026 or by agreement.
Applications should include a CV with a publication list, a personal cover letter outlining relevant experience, and the contact information of two professional references.