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Advertising division: IEK-8 - Troposphere
Reference number: 2019D-109


The Institute for Energy and Climate Research, Troposphere (IEK-8), investigates the chemical and physical processes in the troposphere that impact the chemical composition of the atmosphere.
China is a hot spot of air pollution. During summertime, the most severe air pollutant is ozone. The only relevant source of ozone at the Earth’s surface is the photochemical transformation of inorganic and organic compounds that are emitted by anthropogenic and biogenic sources. A radical chain reaction that involves reactions of peroxy radicals with nitric oxide leading to ozone formation is initiated by the attack of the hydroxyl radical. The simultaneous measurement of peroxy radical and nitric oxide concentrations can therefore quantify the ozone production rate. As part of the Joint Research Lab together with the Peking University, the IEK-8 will participate in a large field campaign in South China in summer 2020 aiming for a better understanding of the chemical processes leading to high ozone pollution events. One major contribution of the institute will be the measurement of the typically very low hydroxyl and peroxy radical concentrations. The existing custom-built instrument for the detection of radicals applying laser-induced fluorescence is currently rebuilt to be deployed in the upcoming field campaign.

We are offering a

PhD position “Quantification of the ozone production rate in field experiments in South China by measuring atmospheric radical concentrations”

Your Job:

  • Extensive testing and characterization of the instrument including the determination of the sensitivity for different radical species and the investigation of potential cross-sensitivities
  • Performing the challenging measurements of atmospheric radical species using laser-induced fluorescence during a field campaign in China in 2020
  • Evaluation of radical measurements
  • Interpretation of radical measurements with the focus on quantifying the ozone production rate and the budget of radical concentrations using either only measured quantities or applying chemical box models
  • Publication of results in peer-reviewed journals

Your Profile:

  • Master degree in physics, chemistry, environmental sciences or a related field with good final grade (German system equivalent 2.0 or better)
  • Knowledge of atmospheric chemistry and laser spectroscopy
  • Good experimental skills to work on complex, custom-built instruments
  • Good skills in data evaluation using mathematical script routines
  • Ability to work in a team

Our Offer:

  • Outstanding scientific and technical infrastructure – ideal conditions for successfully completing a doctoral degree
  • A highly motivated group as well as an international and interdisciplinary working environment at one of Europe`s largest research establishments
  • Chance of participating in (international) conferences and project meetings
  • Continuous, professional support by your scientific supervisor
  • Further development of your personal strengths, e.g. via a comprehensive further training programme
  • Pay in line with 50 % of pay group 13 of the Collective Agreement for the Public Service (TVöD-Bund) pay higher than the basic pay may be possible
  • Usually a contract for the duration of 3 years

Forschungszentrum Jülich aims to employ more women in this area and therefore particularly welcomes applications from women.

We also welcome applications from disabled persons.

Additional Information

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

Questions about the vacancy?
Contact us by mentioning the reference number 2019D-109:
Please note that for technical reasons we cannot accept applications via email.