Pichat Sylvain
Statut : Maître de conférences, HDR
Thème : 4PAL
Site : ENS
Bureau : M8.109
adresse mail : spichat@ens-lyon.fr
numéro de téléphone : 04 72 72 87 92
Description du thème de recherche :
Quaternary paleoclimatology and climate change. Reconstruction of atmospheric and ocean circulations. I notably use source-to-sink tracing focused on dust provenance and flux variations. I conduct research in the marine environments, e.g. to study the links between atmospheric circulation variations on ocean stratification and biological pump activity and effect on atmospheric CO2 variations at glacial/interglacial to abrupt events time-scales. I use similar approaches in continental environments to study the relationships between the regional changes of the atmospheric circulation and hydro-climatic variations, such as the mechanisms generating a Green Sahara state or the recent aridification of the Northwest Saharan margin.