Eric Posmentier, PhDdied at home on January 23, 2020 in West Lebanon, NH, at the age of 76. He was beloved by his wife, Xiahong Feng; his son Raoul Posmentier (Dartmouth '93); daughter Sonya Posmentier and son-in-law Jess Row; sister and brother-in-law Lynn and John Evansohn; his first wife and lifelong friend Loveleen Posmentier; friends, colleagues, and generations of students. He was an adoring grandfather to Mina and Asa Row. Raised in New York City, he graduated from Bronx High School of Science ('60) and City College of New York ('64) and earned a PhD in Geophysics from Columbia University in 1968.

New York remained his home until he moved to the Upper Valley in 2003. A dedicated professor of physics, marine science, earth sciences, and mathematics, Posmentier taught for most of his career at Long Island University, where he retired as Professor Emeritus, and at Dartmouth College. Prof. Posmentier made fundamental contributions to a wide range of earth science fields: He was one of the first scientists to use tidal gauge measurements to assess sea level change in relationship to global warming. His original work on double diffusion has been incorporated into global oceanographic and atmospheric climate models. His numerical modeling often took a deterministic approach to characterize complex systems with predictive and chaotic behavior.

It is not by chance, then, that his fundamental interpretation of quantum mechanics catalyzed his personal curiosity about the relationship between G_d, free-will and determinism. Beyond his research, Eric was broadly interested in human character and culture. An avid outdoorsman, with a particular passion for hiking and sailing, he also loved to listen to and play (guitar and piano) music, and reveled in storytelling, wordplay, joking and making jokes. Conversant in seven languages, he spent much of his life travelling, making friends, and studying the world around him: from Greenland and Siberia, to Vienna, Costa Rica, Israel, China and India. He will be missed by all who knew him.

Those who wish to make a donation in his memory can give to http://www.listencs.org/monetary-donations-1" target="_blank">Listen Community Services or https://www.manhattancountryschool.org/donate-online" target="_blank">Manhattan Country School.

Arrangements are under the direction of the Rand-Wilson Funeral Home of Hanover, NH.