M/F Doctorant

Organisation/Company CNRS Department Institut méditerranéen de biodiversité et d'écologie marine et continentale Research Field Environmental science Biological sciences Geosciences Researcher Profile First Stage Researcher (R1) Country France Application Deadline 9 Jan 2026 - 23:59 (UTC) Type of Contract Temporary Job Status Full-time Hours Per Week 35 Offer Starting Date 1 Apr 2026 Is the job funded through the EU Research Framework Programme? Not funded by a EU programme Is the Job related to staff position within a Research Infrastructure? No Offer Description This doctoral project is part of the PEPR RESILIENCE initiative and the ITEM OASIS project, which aims to support resilient urban development in the face of climate change, air pollution, and urban heat islands. It focuses on CO₂ emission reduction in Marseille and, to a lesser extent, Lille. Cities account for over 70% of fossil CO₂ emissions, but urban inventories often contain significant uncertainties. Atmospheric measurements (in situ and remote sensing) provide a robust method to assess and improve emission inventories and to monitor the effectiveness of reduction measures. Missions Compare atmospheric CO₂ and co‑emitted species with inventories to improve them. Develop clustering methods to compare data under similar atmospheric conditions. Analyze spatial and satellite data to assess urban planning and CO₂ emission trends. Evaluate COVID‑related variations in emissions. Support field data collection and quality monitoring at Marseille‑Longchamp. Develop, or assess the feasibility of developing, indicators to track CO₂ emission trends. Activities Process, calibrate, and validate datasets, including Lidar aerosol data, in collaboration with the Atmospheric Optics Laboratory of Lille. Coordinate isotopic analyses with ICOS Europe. Classify CO₂ data according to atmospheric conditions (wind, temperature, mixing height, etc.). Operate instruments and participate in field campaigns. Monitor data quality and support instrument maintenance. Perform back‑trajectory and footprint analyses using HYSPLIT. Collect and analyze spatial CO₂ and emission tracer data; potential NASA/JPL collaboration. Study 10‑year CO2 emission trends using different inventories. Collaborate with PEPR RESILIENCE to assess emission reduction implementation and barriers. Synthesize sectoral emission reduction measures. Analyze carbon sink evolution using in situ, spatial data, and literature, in collaboration with ICOS and CNRS ecosystem monitoring networks. Required profile Master's degree in Atmospheric Sciences or a related field. Proficiency in programming (R) and statistical analysis. Knowledge of remote sensing required. Fluent in French. English proficiency, minimum B1 level. Meticulous, proactive, responsive, and able to work in a team. Ability to conduct fieldwork and handle scientific instruments. Driver's license (B) desirable. Working Environment The PhD candidate will join the Atmosphere group of the PAHIS team at IMBE. Support will be provided by a research engineer for database and instrument maintenance. Weekly supervision meetings will be held, and the candidate will be integrated into the PEPR RESILIENCE multidisciplinary consortium of physicists, chemists, geographers, urban planners, sociologists, and emission inventory specialists. Can atmospheric observations provide indicators of the effectiveness of urban CO₂ emission reduction measures? #J-18808-Ljbffr