Pierre Sepulchre


Room 1108, bâtiment 714

L'Orme des Merisiers, CE Saclay

91191 Gif-sur-Yvette, France

I am a multidisciplinary scientist, exploring the links between climate changes and biodiversity over long time scales through numerical modelling. After working at reconstructing past environments of Southeast Asia, I completed a PhD in modelling past climates of Africa at the Laboratoire des Sciences du Climat et de l’Environnement (Institut Pierre-Simon-Laplace, IPSL) and the University of Poitiers.

After a two-year postdoc in the climate modelling group at UC Santa Cruz, I was hired in 2010 as a full-time researcher at CNRS. My current project aims at understanding the links between paleogeography, climate changes and biodiversity through time, my core tool being the Earth System Model IPSL-CM5A2, that we published in 2020.

I am a member of the French Deep-Time Paleoclimate Modeling Group, and was co-head of the climate modelling team at LSCE from 2018 to 2024. I am associate head of research of the Geosciences Graduate School at Université Paris-Saclay. From 2015 to 2023, I was in charge of the French paleoclimate modelling computing project, operating 50+ millions hours on French supercomputers through GENCI.


Mar 17, 2023 Cette édition de la Recherche revient sur les données qui permettent de documents les climats anciens et les simulations numériques qui permettent d’en proposer des mécanismes.
May 6, 2024 Julia Bres' thesis defense on 28th Jan 2022

selected publications

  1. Orbital variations as a major driver of climate and biome distribution during the greenhouse to icehouse transition
    Delphine Tardif, Agathe Toumoulin, Frédéric Fluteau, and 9 more authors
    Science Advances 2021
  2. IPSL-CM5A2 – an Earth system model designed for multi-millennial climate simulations
    Pierre Sepulchre, Arnaud Caubel, Jean-Baptiste Ladant, and 25 more authors
    Geoscientific Model Development Jul 2020
  3. Tectonics, climate and the diversification of the tropical African terrestrial flora and fauna
    Thomas L P Couvreur, Gilles Dauby, Anne Blach-Overgaard, and 23 more authors
    Biological Reviews Jul 2021