John Pomeroy (hydrologist)

John Pomeroy is a hydrologist based in Canada who studies glaciers, snow hydrology, and hydrological modelling. He has helped to develop hydrological technologies and methodologies used world-wide. In 2025, he was awarded the International Hydrology Prize - Dooge Medal by the International Association of Hydrological Sciences to recognize his contributions to climate science and the understanding of hydrological processes and predictions. He has also received the Miroslaw Romanowski Medal (2019) and the J. Tuzo Wilson Medal (2017).

Pomeroy is a Distinguished Professor in the Department of Geography and Planning of the College of Arts and Science at the University of Saskatchewan (USask) and director of the USask Centre for Hydrology. He is a member of the Global Institute for Water Security (GIWS). He is the Director of the Global Water Futures (GWF) program and the GWF Observatories (GWFO), a world-wide university-led program for freshwater research and monitoring. He became the primary chairperson of the UNESCO Chair in Mountain Water Sustainability in 2023.

Pomeroy was the founding President of the International Commission for Snow and Ice Hydrology (ICSIH) serving from 2005-2013 and President of the Canadian Geophysical Union from 2007-2009. He has served as Chair of the International Decade for Predictions in Ungauged Basins. He is a Fellow of the Royal Geographical Society (2004), the American Geophysical Union (2013) and the Royal Society of Canada (2018).