The Aquatic and Isotope Biogeochemistry Research Group at the Department of Environmental Sciences, University of Basel (https://duw.unibas.ch/de/bgc/) invites applications for a Postdoc position in the field of benthic nitrogen isotope biogeochemistry. The postdoc will be part of a project investigating the stable isotope effects and N2O isotope signatures associated with elimination and cycling of bioavailable nitrogen (N) in lake and marine sediments. Research is planned in close collaboration with the Eawag Swiss Federal Institute of Aquatic Science and Technology (Department Systems Analysis, Integrated Assessment and Modelling), as well as scientists from the University of Southern Denmark, Woods Hole Oceanographic Institution, and the GFZ Potsdam.
The prime goal of the planned research is to build a thorough understanding of the controls on the NOx (nitrate and nitrite) and N2O nitrogen and oxygen isotope signatures produced during sedimentary denitrification and other N cycling reactions. In close collaboration with two PhD students, the postdoctoral project will make use of laboratory experiments and field investigations into the sediment porewater (N and O) isotope dynamics of distinct lacustrine and marine denitrifying environments, in order to develop and calibrate an isotope-biogeochemical model to simulate the distribution of N-species and their isotope ratios (in N2O isotopocule systematics) within sediment porewaters. The planned research will be highly relevant for the use of N isotope measurements to constrain local, regional, and even global N budgets, and to assess the controls on the isotopic composition of N2O released by aquatic sediments.
We are looking for motivated candidates with a PhD in environmental sciences, oceanography, limnology, geo-chemistry, biology, or a related discipline. Candidates are expected to have a solid background in (bio-) geochemistry in aquatic systems in general, as well as (micro-) biological processes and nitrogen cycling in benthic environments in particular. An expertise in N-isotope methods, N2O isotope biogeochemistry, and/or numerical modelling of porewater geochemical processes will be an asset. The ability to work in an interdisciplinary team and good communication skills including fluency in English are essential.
Please submit your complete application documents, including a letter stating your motivation, experience and skills, a CV, and contact details of at least two references as a single pdf file via our online recruiting platform: https://career2.successfactors.eu/career?company=UNIBAS&career_ns=job_listing&career_job_req_id=1549 . For further information please contact Prof. Dr. Moritz Lehmann (firstname.lastname@example.org. Review of applications will begin 15. April, 2020, and will continue until the position is filled.