Thomas Weiss

Thomas Weiss

Research Interest


My research is centered around using stable isotopes and trace metals in biological carbonates to understand how local and regional climate and oceanographic conditions responded to past changes in global climate forcing. I seek to generate records of climate and oceanographic processes that exist today from intervals when boundary conditions were different than those that can be captured using modern instrumental records. As such, my research focuses on a wide range of time intervals throughout the Quaternary and Neogene and utilizes the carbonate climate archive best suited for investigating the process of interest.

My dissertation seeks to take advantage of a variety of foraminiferal species with unique depth habitats from a sediment core in the Sulu Sea in order to gain a unique perspective on past oceanographic variability during several periods during the Holocene and Pleistocene. Current projects include reconstructing past North Equatorial Current variability in the western Pacific, Marine Isotope Stage 3 sea level, and Glacial-Interglacial transition structure.

While my recent research has utilized foraminiferal records, I am also interested in using other archives when they are appropriate for answering questions I am intrigued by. For example, my undergraduate thesis utilized a δ18O record from a Miocene age coral from the Dominican Republic to determine whether El Niño-Southern Oscillation variability existed during the late Miocene

Research Advisor: Braddock Linsley


Cornell College, B.A. in Geology (2016)

Columbia University, M.A. in Earth and Environmental Sciences (2018)

Columbia University, MPhil in Earth and Environmental Sciences (2019)