About the Position
CNRS invites applications for a Postdoctoral Fellowship in Environmental Science & Climate Modelling at the Laboratoire d’Océanographie de Villefranche and Mercator Ocean, Toulouse. This two-year position focuses on ocean alkalinization, a marine Carbon Dioxide Removal (mCDR) approach enhancing ocean buffering capacity and CO₂ uptake. The fellow will integrate BGC-Argo float observations into the PISCES biogeochemical model, improving simulations of seasonal pCO₂ cycles and quantifying CO₂ fluxes attributable to alkalinization. The project spans global ocean bioprovinces, offering opportunities to work with international experts, publish in high-impact journals, and participate in conferences. Candidates will gain experience in biogeochemical modelling, data assimilation, and MRV frameworks, contributing to critical climate science and ocean carbon cycle research.
Position/Job Details
- Position: Postdoctoral Fellow
- Institution: CNRS – National Center for Scientific Research
- Department: Laboratoire d’Océanographie de Villefranche / Mercator Ocean
- Research Field: Environmental Science, Climate Science, Oceanography
- Location: Toulouse & Villefranche, France
- Number of Posts: 1
- Job Type: Full-time, Temporary (2 years)
- Start Date (Anticipated): January 2026
- Working Hours: 35 hours/week
- Salary Range: As per CNRS regulations
- Required Degree/Diploma: PhD
Research Area
- Ocean alkalinization and marine carbon dioxide removal
- Air-sea CO₂ fluxes and global biogeochemical cycles
- Climate modelling and seasonal pCO₂ simulations
- Data assimilation using BGC-Argo floats
- Parameter optimization and uncertainty quantification
Eligibility & Qualifications
Minimum Requirements:
- PhD in oceanography, climate science, numerical modelling, or related field
- 1–4 years of research experience in environmental sciences
- Experience in biogeochemical modelling and data assimilation
- Proficiency in programming languages (Python, Fortran, Matlab, or equivalent)
- Basic French and strong English communication skills
Preferred Qualifications:
- Experience with PISCES or similar biogeochemical models
- Publication record in oceanography or climate sciences
- Ability to collaborate in interdisciplinary research teams
Key Responsibilities
- Assimilate BGC-Argo float data into PISCES using particle filter techniques
- Optimize model parameters for accurate seasonal CO₂ cycle simulations
- Run ensemble simulations to assess CO₂ fluxes with/without alkalinization
- Quantify uncertainties and strengthen MRV frameworks
- Publish scientific articles and participate in international conferences
Application Process
How to Apply: Submit applications online via the CNRS recruitment portal
Required Documents:
- Cover letter
- Curriculum Vitae (with publication list)
- Recommendation letters or referees’ contact details
Apply here: CNRS Application Link
Important Dates
- Application Opens: 23 September 2025
- Deadline: 13 October 2025 (23:59 UTC)
- Start Date: 1 January 2026
Useful Links
- Institution Website: CNRS
- Laboratoire d’Océanographie de Villefranche: Visit Here
- Official Notification Link: Click Here
- Apply Now: CNRS Application Portal
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