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GFZ is Germany's national centre for solid Earth research. We advance the understanding of dynamic processes to address global challenges, from mitigating the impacts of natural hazards and sustaining our habitat amid global change to responsibly managing georesources. We are part of the Helmholtz Association, the largest German scientific organisation. With around 1,200 employees as well as ca. 500 guest researchers, we contribute to the Helmholtz Research Field Earth and Environment, aligning cutting‑edge research with societal relevance and international collaboration. Our work integrates multidisciplinary studies across Earth's system components, leveraging advanced technologies and infrastructure to research solutions and to transfer our knowledge to society. We are doing this according to our vision: “Taking the pulse of our Earth to safeguard a habitable planet”.
The section 4.4 Hydrology (department “Geosystems”) offers a PostDoctoral position focusing on monitoring and analysing tree responses to climate change in the framework of the project “Trees under stress: Potsdam as a real‑world laboratory for climate change impacts (ArboKlim)”:

Reference Number 11107
The PostDoc position is one of three in a cluster hire. It is embedded in the Helmholtz long‑term environmental observatory network TERENO, and the EU‑funded regional project ArboKlim, carried out by the GFZ Helmholtz Centre for Geosciences and the Potsdam Institute for Climate Impact Research (PIK), in close collaboration with local partners.
ArboKlim investigates the impacts of climate change on tree vitality, mechanical stability, and associated risks in and around the UNESCO World Heritage landscapes of Potsdam, Germany. To improve the understanding of tree responses to increasing frequency and intensities of weather extremes, the project integrates monitoring of eco‑hydrological and seismic signals with physical and chemical signatures preserved in tree rings. The goal of ArboKlim is to develop scientifically robust indicators and practical tools that support risk assessment, vegetation management, and the long‑term resilience of culturally and socially important green spaces under climate change.
Your responsibilities:

• Instrumentation of field sites
• Processing of tree water status data, including sap velocities, tree growth, water content in tree and soil and seismic data
• Joint analysis of tree water status data and seismometer data to investigate tree stress
• Data management
• Collaboration with project partners in meteorology, dendrochronology and geomorphology and especially close collaboration with the other two PostDocs hired in this project
• Communication and discussion of results with stakeholders to integrate the findings in water management and mitigation practices
• Interpretation, publishing and presentation of findings in peer‑reviewed journals and at conferences

Your qualifications:

• A Master's degree (or equivalent) and a PhD degree in Hydrology, Civil or Environmental Engineering, Geosciences, Geophysics, Environmental Sciences, Biogeosciences or Physics
• Strong interest in interdisciplinary research
• Process‑oriented thinking, preferably within the atmosphere‑tree‑soil nexus
• Some knowledge of tree physiology and/or experience in environmental seismology is an asset
• Substantial experience in statistics and analysis of large data sets, including time series analyses and machine learning
• Good programming skills
• Very good communication and interpersonal skills, team player
• Very good command of English
• Experience in writing scientific publications
• Knowledge of the German language is an asset
• Ability to work in the field, including extended walking and carrying of heavy loads
• Valid driver’s license category B

Start date: Preferably 15th April 2026
Fixed end date: 30th June 2028
Salary: Die Stelle ist nach TVöD Bund (Tarifgebiet Ost) mit der Entgeltgruppe 13 bewertet. Die Eingruppierung erfolgt nach den tariflichen Bestimmungen und den entsprechenden persönlichen Voraussetzungen.
Working hours: Vollzeit (derzeit 39 h/Woche); Die Stelle ist grundsätzlich teilzeitgeeignet.
Place of work: Potsdam

• A challenging postdoctoral position in an international and interdisciplinary research environment
• Access to state‑of‑the‑art instrumentation, long‑term datasets, and computing infrastructure
• Public service benefits
• Participation in Helmholtz‑wide training and networking activities, and other extensive training opportunities
• Professional career advice offered by our in‑house Career‑Centre
• Flexible working hours and conditions
• Support with finding a good work‑life balance offered by benefit@work
• Institute children’s day‑care centre on site
• Workplace at the Albert Einstein science park, a family‑friendly workplace on the Telegrafenberg in Potsdam, close to Berlin
• Workplace within walking distance of Potsdam main train station, or just a short ride on the shuttle bus

Interested?
Then we look forward to receiving your application by 8th March 2026.
Required documents:

• CV (including scientific publication list as well as names and contact information of three referees)
• Letter of motivation
• Grades, transcripts and certificates for your scientific degrees in a single document - if not available, a confirmation from your institution of completed degree by the start of employment

Please use our online application form only.
The GFZ actively promotes diversity and explicitly welcomes applications from all qualified individuals, regardless of ethnic and social origin, nationality, gender, sexual orientation and identity, religion/belief, age and physical characteristics. We also promote an inclusive working environment in which everyone can fully develop their own talents. Anyone who has been recognised as severely disabled, will be given preferential consideration in the event of equal suitability and qualification in accordance with the provisions of the German Social Code IX. In case of further queries regarding gender equality, please do not hesitate to contact our Equal Opportunities Officer.
“Diversity in perspectives” is one of GFZ's core values. As an integral part of supporting diversity at our centre, we actively promote women in science and in leadership positions. We among others do this through our gender equality plan and the cascade model measures which we actively implement to enable sustainable equal opportunities in academic career paths. The GFZ thus committedly strives for gender equality in science, including in leadership positions, and strongly encourages women to apply.
Your personal data will be processed for the purpose of conducting the selection procedure on the basis of Art. 6 para. 1 b, Art. 88 GDPR in conjunction with Art. 26 of the Data Protection Act for the State of Brandenburg. After completion of the procedure, application documents will be deleted in compliance with data protection regulations.
In case of any further queries relating to the field of activity, please contact Dr. Theresa Blume via email. If you have any general questions about the application process, please contact our recruiting team at our phone number +49 (0) 331-6264-28787.
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