Project: COLDNOSE: understanding mantle wedge hydration and deformation across space and timescales (ANR-funded)
Postdoc project title: Kinematic modelling of GPS data from daily to decades’ timescales
Hosting laboratory: Laboratoire de Géologie de Lyon (LGL-TPE), ENS de Lyon, France, and Institute of Geosciences, Ruhr-University Bochum and University of Potsdam and GFZ, Germany.
Duration: 1.5 year position starting between January 2026 and March 2026.
Gross salary: 2,750 – 3,500 € per month depending on experience. Salaries include health and retirement benefits.
Context and objectives: The ANR-funded COLDNOSE project aims at studying using a multi-method approach the fluid-rock interaction events that occur along and above subduction interfaces and their rheological effect at various timescales. In particular, the wealth of geodetic measurements along with advances in earthquake-deformation models in the last two decades has notably improved our knowledge of the processes controlling the deformation over the seismic cycle. Yet, the rheological behavior of the cold-nose mantle during short-term postseismic deformation in subduction zones remains unclear.
The postdoc position targets at responding this scientific matter by analyzing archived GNSS observations in Chile and Japan using state-of-the-art time-series trajectory (GratSiD, Bedford, 2018, JGR) and postseismic deformation numerical models (Peña et al., 2022, GRL). This postseismic geodetic modeling approach will benefit, complement, and build from the scientific input from other COLDNOSE team members that will focus on other geological and geodynamic tasks. This integrated approach opens perspectives for better understanding of the role of rheological behavior in the upper mantle and its imprint patterns in the surface deformation observations.
Working Environment: The LGL-TPE, ENS de Lyon, France (https://lgltpe.fr/) is a leading institution in the field of Earth Sciences in France, with a variety of experts from geodynamics and geology to seismology and geodesy. The hired candidate will be based in Lyon with one stay in RUB (Bochum, Germany) and one stay in University of Potsdam (Germany) to collaborate with the group of Prof. Bedford and Dr. Carlos Peña, respectively. The project will be supervised by Prof. Samuel Angiboust (LGL-TPE – PI, geology), Prof. Jonathan Bedford (RUB, Tectonic Geodesy Group), and Dr. Carlos Peña (University of Potsdam/GFZ, Geological Remote Sensing group).
Essential qualifications:
PhD in geosciences (or related topic) with a good understanding in earthquake-cycle related deformation processes.
Proven track record of publications and conferences.
Hands-on experience with geodetic time series analysis
Experience with forward and inverse modeling of earthquake-deformation.
A very good command of written and spoken English is required.
Autonomy, collaborative skills and ability to work within an interdisciplinary team.
Application: ENS Lyon is committed to promoting diversity and inclusivity. We encourage applications from all qualified individuals, including those from underrepresented groups in Earth sciences. Candidates are welcome to contact Samuel Angiboust (samuel.angiboust*@*ens-lyon.fr) for further information. Application forms should be sent before December 15th, 2025, and contain a cover letter, a CV with a list of publications, and the names and contact information of 2-3 references.