PhD or Postdoc position (m/f/d)

Sources and processes controlling aerosol composition in the UTLS – From tropical monsoon to extratropical regions – Sub-project 2

Job Code:

Job Offer from May 27, 2021

The Particle Chemistry Department at Max Planck Institute for Chemistry (MPIC) and Johannes Gutenberg University Mainz (JGU) invites applications for a

PhD or Postdoc position (m/f/d)

funded within the Transregional Collaborative Research Centre 301

TPChange – The Tropopause Region in a Changing Atmosphere

by the German Research Foundation (DFG, Deutsche Forschungsgemeinschaft) and partially by MPIC.

Within TPChange we aim to improve the understanding of relevant multiscale processes in the tropopause region and to specify their impact on composition, dynamics and ultimately on future climate and climate variability. The PhD candidate or Postdoc will work in project A04

Sources and processes controlling aerosol composition in the UTLS – From tropical monsoon to extratropical regions – Sub-project 2

We are looking for a PhD student or a Postdoc for one of the sub-projects of A04 in which we want to investigate small-scale mixing and gradients of aerosol particles across the tropopause. We plan airborne fast size distribution and composition measurements using a Learjet aircraft. Additionally, we want to characterise vertical transport of aerosol particles by convection and/or warm conveyor belts as well as secondary aerosol formation in the UTLS. During the Learjet aircraft campaign we will operate a compact aerosol mass spectrometer inside the aircraft cabin and two aerosol size distribution instruments, one in the cabin and one in a tow shuttle that will fly a few hundred meters below the Learjet.

The tasks of the Ph.D. or Postdoc candidate include especially the integration of the aerosol mass spectrometer and the size distribution instruments (UHSAS) into the Learjet and the tow shuttle, as well as instrument operation during the field campaign and data evaluation. Comparative representative aerosol data from the tropopause region are available through the IAGOS-CARIBIC project from FZ Jülich. Data evaluation will be conducted in close cooperation with “TP Change” partners, especially the modelling groups. The aircraft campaign is coordinated by JGU and MPIC Mainz and will be a close collaboration between all partners involved.

Our second sub-project in project A04 concentrates on mass spectrometric particle analysis in the monsoon area and conducts laboratory experiments for a better understanding of organic aerosol compounds. The two PHD candidates or Postdocs in our project are expected to work together and to support each other in the experimental work.

Master degree or Ph.D. in physics, chemistry, meteorology, or comparable degree. We are looking for candidates with a background in aerosol measurements and in handling of complex measurement systems, and with enthusiasm for atmospheric aerosol research. We expect participation in measurement campaigns. Good English language skills are required, and basic programming skills (e.g., LabView, Igor, Python) are desirable.

Employment conditions
The position is offered for a maximum of 4 years (until 30.06.2025) and the place of employment will be Mainz. The targeted starting date is 1 July 2021.

Applications and deadline
Please send applications with reference to the code A04-PHD-MPI as one single pdf file to , including a motivation letter including your preferred project, CV, copies of relevant certificates, preferred starting date, and the names of at minimum two references.
Review of all applications will start on 1 June 2021 and will continue until the position is filled.
For further information, please contact Dr. Johannes Schneider (), Dr. Franziska Köllner (), or Prof. Stephan Borrmann (). Further reading can be found here: and

TPChange offers a comprehensive and structured training for early career researchers. At MPIC, Ph.D. students will be integrated into the Paul Crutzen Graduate School (PCGS) ( crutzen-graduate-school). In addition to self-organised activities such as workshops, trainings and a guest program, the successful candidate will have the opportunity, if desired, to pursue international research visits. The consortium conducts an ambitious program to gradually enhance gender equality on all career levels.

The Max Planck Society actively supports equality, diversity and inclusion, and as an equal opportunity employer, explicitly encourages applications from women as well as from all others who will bring additional diversity to the society’s research. Applicants with disabilities will be preferentially considered if suitably qualified.

We look forward to your application!

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