Alexandre Stegner

CEO & Founder


Team leader, Head of R&D, Project manager, Physical Oceanography, Satellite data processing, Smart AI, Scientific communication, Kouign-amann tasting


I founded AMPHITRITE in December 2021 with two colleagues to promote concrete applications of our research work at the CNRS and the Ecole Polytechnique. We were among the first scientific teams to develop an AI technology to fuse multiple satellite observations. This technology leads to a new generation of highly reliable and accurate ocean data. During the last twenty years I’ve conducted several research projects related to numerical modelling, oceanographic campaigns and satellite data processing through Machine Learning. For over six years, I have also directed the international master’s program STEEM at Ecole Polytechnique dedicated to the energy transition. Aware of the urgency of climate change and the stakes for industry we have developed innovative solutions to reduce the fuel consumption and cut shipping emissions.


Selected publications

  •  Ioannou, A., Moschos, E., Le Vu, B., and A. Stegner. “Short-Term Optimal Ship Routing via Reliable Satellite Current Data” Paper presented at the SNAME 8th International Symposium on Ship Operations, Management and Economics, Athens, Greece, March 2023.



  • Stegner, A., Le Vu, B., Dumas, F., Ghannami, M. A., Nicolle, A., Durand, C., & Faugere, Y. (2021). Cyclone-anticyclone asymmetry of eddy detected on gridded altimetry product in the Mediterranean Sea. Journal of Geophysical Research: Oceans, 126, e2021JC017475.
Illustration de la mer et des bateaux