Stéphane is a Professor in data analysis for environmental sciences at the Centre of Education, Research and Innovation on Energy and Environment (CERI EE) at IMT Nord Europe and at IGE/UGA. He is the Head of the French node of ACTRIS, which is a distributed research infrastructure focusing on short-lived atmospheric species impacting air quality and climate. He also coordinates the national project EQUIPEX+/Obs4Clim for “Integrated Atmospheric Observing System “.