Jan Esper (born 1968) studied geography at the University of Bonn, where he later earned his doctorate. After a postdoc position at Columbia University in New York City, he continued his work on dendrochronology at the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), and qualified as a professor at the University of Bern.
Jan Esper, born in 1968, studied geography at the University of Bonn. He later earned his doctorate there and pursued dendrochronology research at Columbia University in New York City before becoming a professor at the University of Bern, where he worked at the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL).