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Postdoc, Day and nighttime chemistry of organic trace gases in the planetary boundary layer

Advertising institute: IEK-8 - Troposphere
Reference number: 2017-164

The subinstitute for Energy and Climate Research, Troposphere (IEK-8) investigates the physical and chemical processes in the troposphere which have a major impact on the chemical composition of the atmosphere. The research focusses on the long-term observation of atmospheric trace gases, the understanding of atmospheric self-cleaning, and the formation and aging of aerosols. Within the IEK-8 the research group “organic trace gases” investigates the natural and anthropogenic emissions of volatile organic compounds (VOC) at the earth's surface and their chemical transformation within the planetary boundary layer. The analytical methods employed are GC-MS/FID and CIMS/PTRMS.
The IEK-8 is currently preparing the ground-based field campaign JULIAC (JUelich Atmospheric Chemistry study) to investigate the day- and night-time chemistry of radicals and VOC in an anthropogenically influenced environment. Organic peroxides and nitrates are indicators for different diurnal chemical processes which influence aerosol formation and radical recycling. This project will adapt and apply existing GC-MS/FID and CI-TOF-MS methods to study these processes during JULIAC. A broad range of instrumentation measuring other trace gases, radicals and aerosols, in conjunction with meteorological parameters will support the campaign and a new sampling approach will be applied, using the atmosphere simulation chamber SAPHIR as a large photochemical flow reactor.

We are looking to recruit as soon as possible a

Postdoc, Day and nighttime chemistry of organic trace gases in the planetary boundary layer

Your Job:

  • supporting the VOC measurements (GC-MS, CIMS) during intensive campaigns at the atmosphere simulation chamber SAPHIR
  • interpretation of diurnal VOC transformation processes dependent on the NOx-concentration and their effect on radical concentrations or aerosol formation
  • documentation of results and presentations at meetings and conferences

Your Profile:

  • completed university degree (doctorate) in physics or chemistry with a background of atmospheric science
  • experience with gas chromatography and mass spectrometry
  • excellent programming skills in a data analysis programming language
  • willingness to participate in multi-week intensive field campaigns
  • strong ability to work independently and within a team
  • good writing and presentation skills

Our Offer:

  • a diverse and highly motivated international research team
  • a wide range of scientific challenges and issues
  • excellent technical support
  • International, interdisciplinary working environment on an attractive research campus, ideally situated between the cities of Cologne, Düsseldorf, and Aachen
  • A comprehensive further training programme, including English language courses
  • Flexible working hours and various opportunities to reconcile work and family life
  • Limited for 2 years
  • Full-time position with the option of slightly reduced working hours
  • Salary and social benefits in conformity with the provisions of the Collective Agreement for the Civil Service (TVöD).


We also welcome applications from disabled persons.

We look forward to receiving your application, preferably online via our online recruitment system on our career site, quoting the above-mentioned reference number.

Contact Human Resource Development and Recruiting
Anja Schurf
Tel.:+49 2461 61 9700


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