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1 x 66% Ph.D. position (f/m/d)

The Institute of Environmental Physics (IUP) at the University of Bremen invites application for

One Ph.D. position (f/m/d)
Evaluation of historical atmospheric infrared spectra measured at the Jungfraujoch

Salary is according to the German federal employee scale TVL-13, 66% and limited to a term of 36 months.

The time limitation is based on § 2 (1) WissZeitVG (Wissenschaftszeitvertragsgesetz, i.e. temporary science employment act). Therefore, candidates may only be considered who dispose of the respective scope of qualification periods according to § 2 (1) WissZeitVG.

The project is funded by the German Reseatrch Foundation (DFG).

Work content

The solar absorption spectrometry in the infrared spectral region has been established as a powerful tool in atmospheric remote sensing. About 30 different trace gases can be observed. The retrieval yields the total column concentrations of these molecules. Such measurements have been used to study the stratospheric ozone depletion, the increase of greenhouse gases, or pollution.

Today observations are performed using FTIR (Fourier Transform Infrared) interferometers, because these instruments have a very high spectral resolution and the instrumental line shape can be simulated. These observations are organised in the international NDACC (Network for Detection of Atmospheric Composition Change; www.ndacc.org), with about 20 sites globally.

However, first solar absorption measurements using grating spectrometer began in 1951 at that place. These spectra have been stored on paper rolls. The aim of this project is to analyse these pioneering measurements to get the long-term trend of several trace gases in the atmosphere. The historic spectra need to be scanned and digitized, and subsequently analyzed to retrieve the total column concentrations of different trace gases. Finally, combined data sets of the historic spectra together with the data from current instruments will be created and interpreted using chemical transport models.

The project is a cooperation between the University of Bremen, the University of Liège/Belgium and the University of Leeds. The work is mainly done at the University of Bremen, but visits to the University of Liège/Belgium and the University of Leeds/UK will take place.


  • M.Sc. degree or equivalent in physics, oceanography, meteorology, climatology, remote sensing, geophysics, mathematics or related fields.
  • Skills in scientific computer programming (e.g., Python, IDL, Matlab or similar) and a strong interest to work in the field of ground based remote sensing of the atmosphere.
  • The successful candidate is required to work in a team and to travel to Belgium and Great Britain in order to coordinate the project between the partners.


The Institute of Environmental Physics (IUP) provides a stimulating, international, and pleasant work environment and is strongly involved in the international climate and space science community. The focus of our work in environmental physics is the investigation of the atmosphere, the cryosphere, and the oceans of the earth. We have state-of-the art lab equipment, and high computational capacity, which is essential for the data processing of our projects. Many of our scientific projects are using external platforms like the research vessel "Polarstern", aircrafts, stratospheric balloons, and ground based stations all around the world, from the tropics to the poles.

As the University of Bremen intends to increase the proportion of female employees in science, women are particularly encouraged to apply. In case of equal personal aptitudes and qualification priority will be given to disabled persons. Applicants with a migrant background are particularly invited to apply.
The positions will remain open until filled. The application should include details of relevant qualifications and experience, CV, copies of transcripts, and names of at least two referees.

Please send your application by 27 September 2019 with the reference number A239/19 to:

University of Bremen
Institute of Environmental Physics
Dr. Mathias Palm
Otto-Hahn-Allee 1
28359 Bremen

or by email (a combined pdf): mathias.palmprotect me ?!uni-bremenprotect me ?!.de

Further inquiries regarding the position may be directed to the same address or by phone: +49-421-218-62179

Please do not send original documents, your application will not be send back but discarded.



Erstellt am 05.09.19 von Alexandra Gutherz