This job has expired

PhD-position - Climate stress induced biogenic emissions and their impact on atmospheric composition

Helmholtz Association of German Research Centres
Closing date
29 Jan 2024

View more

Job Type
PhD Studentship
Employment - Hours
Full time

Job Details

Work group:

IEK-8 - Troposphäre

Area of research:

PHD Thesis

Job description:

Your Job:

During your time as a PhD candidate you will:

  • Characterize and apply state-of-the-art chemical ionization mass spectrometry methods (proton transfer reaction and ammonium adduct time-of-flight mass spectrometry) for measuring biogenic volatile organic compounds and their oxidation products
  • Conduct experiments to quantify and characterize the emission and uptake of volatile organic compounds from/to relevant tree species under combined biotic and abiotic stressors in a plant chamber (SAPHIR-PLUS)
  • Study stress-VOC oxidation under various atmospheric conditions in the large state-of-the-art atmospheric oxidation chamber SAPHIR
  • Apply statistical methods (e.g., positive matrix factorization, cluster analysis) to identify emitted molecules that are specific to non-stressed or stressed conditions to be used as tracers in the field
  • Be involved in the preparation and realization of airborne, Zeppelin-based field measurements of volatile organic compound emissions over stressed forests
  • Present results at international conferences and publish them in peer-reviewed journals

Your Profile:

  • A Master’s degree in chemistry, physics, environmental sciences, meteorology, atmospheric sciences, or related fields
  • Enthusiasm for laboratory and field work
  • Excellent experimental skills; experience in mass spectrometry or gas-phase measurements is an advantage
  • Experience with or desire to learn programming and data analysis methods
  • Excellent oral and written communication skills in English
  • Ability to communicate results clearly in presentations and in writing
  • Self-motivated, structured working style
  • Excellent cooperation and teamwork skills

Our Offer:

We work on the very latest issues that impact our society and are offering you the chance to actively help in shaping the change! We offer ideal conditions for you to complete your doctoral degree:

  • An international, stimulating work environment in an enthusiastic and welcoming team
  • The opportunity to join the HITEC graduate school, which provides additional scientific and professional qualifications, as well as international exchanges to complement the candidate’s research work
  • Continuous scientific mentoring by your scientific supervisor
  • Further development of your personal strengths, e.g. through an extensive range of training courses; a structured program of continuing education and networking opportunities specifically for doctoral researchers via JuDocS, the Jülich Center for Doctoral Researchers and Supervisors:
  • A large research campus with green spaces, offering the best possible means for networking with colleagues and pursuing sports alongside work
  • Targeted services for international employees, e.g. through our International Advisory Service

The employment of doctoral researchers at Jülich is governed by a doctoral contract, which usually has a term of three years. Attractive pay in line with 67,5% of pay group 13 of the Collective Agreement for the Public Service (TVöD-Bund) and additionally 60 % of a monthly salary as special payment („Christmas bonus“). Further information on doctoral degrees at Forschungszentrum Jülich including our other locations is available at:

In addition to exciting tasks and a collaborative working atmosphere at Jülich, we have a lot more to offer:

We welcome applications from people with diverse backgrounds, e.g. in terms of age, gender, disability, sexual orientation / identity, and social, ethnic and religious origin. A diverse and inclusive working environment with equal opportunities in which everyone can realize their potential is important to us.

This research center is part of the Helmholtz Association of German Research Centers. With more than 42,000 employees and an annual budget of over € 5 billion, the Helmholtz Association is Germany's largest scientific organisation.


The Helmholtz Association contributes to solving major challenges to assure the future of our society. With more than 39,000 people on staff in 18 national research centres, the Helmholtz Association is Germany’s largest scientific organization. The name Helmholtz stands for concerted research in which networks form the key principle behind inquiring thought and action. Concerted research is efficient and flexible.

The profile of the Helmholtz Association

The Helmholtz Association performs cutting-edge research which contributes substantially to solving the grand challenges of science, society and industry. To succeed in meeting these responsibilities, Helmholtz concentrates its work in six research fields: Energy, Earth and Environment, Health, Key Technologies, Matter, as well as Aeronautics, Space and Transport. Within each of these fields, research programs are developed by our scientists and regularly evaluated by renowned international experts. Their evaluation forms the basis for the programme-oriented funding that is allocated to Helmholtz research. Within the six research fields, Helmholtz scientists cooperate with each other and with external partners – working across disciplinary, organizational and national borders.

Promoting young academics

Helmholtz scientists, a high-performance infrastructure and modern and efficient research management are the ingredients to the Helmholtz Association‘s success and global impact.
Promoting young researchers is a major priority for the Helmholtz Association. Its qualification schemes for young researchers are geared mainly towards PhD students, postdocs and young managers. The Helmholtz Association has set high standards for its talent management. Its strategy begins with targeted recruitment of highly qualified staff at all levels, followed by comprehensive support aimed at further developing their potential. Ensuring equal opportunities is an essential element in all talent management activities undertaken by the Helmholtz Association.

The Helmholtz Graduate Schools and Research Schools at almost all Helmholtz Centres provide doctoral students with the general and specific skills and training they need, as well as ample opportunity to network with other working groups. The period following a doctorate is decisive in determining the direction and success of a scientific career. For this reason, we are about to establish Career Centers for postdoctoral researchers in the Helmholtz centres and a mentoring programme for especially gifted PostDocs in order to foster career orientation. This equips young researchers with the skills they need to go on to head a Helmholtz Young Investigators Group, for example. As a Young Investigator Group leader, junior scientists can independently set up their own group to conduct research in their specialist field.

Within its talent management strategy, the Helmholtz Association pays special attention to the increased recruitment of talented female scientists both from Germany and abroad. To this end, there are currently two funding programs supporting this policy Funding of first-time appointments of excellent women scientists (W2/W3)’ and ‘Funding to recruit top-level international women scientists (W3)’.

The increasing complexity of the content, structures and framework conditions of scientific work today requires researchers to organise their projects, their employees and, of course, themselves in a highly professional and effective way. In response to these demands, we have set up the Helmholtz Management Academy to provide junior leaders in science with professional management training. Furthermore, the Helmholtz network provides a platform for the alumni of the Helmholtz Management Academy and Mentoring programme to come together and share their experiences of leadership, career development and lifelong learning.

Company info

Get job alerts

Create a job alert and receive personalised job recommendations straight to your inbox.

Create alert