Tuesday, Mar 04, 2025
1:30pm - 3:00pm
Lecture by:
Homa Kheyrollah Pour
Lakes, particularly those in cold regions, are increasingly vulnerable to a range of environmental pressures exacerbated by climate change. Understanding the future trajectories of these lakes is crucial for the communities that rely on them for their livelihoods. However, meaningful predictions are often constrained by limited spatial and temporal coverage of field observations, insufficient monitoring programs, and a lack of knowledge about in-lake processes and their resilience to external changes. Our research focuses on studying the physical and biogeochemical processes and dynamics of northern lakes. Our specific goals are to: (1) understand the past, present, and projected lake ice phenology and thickness; (2) investigate the relationship between ice condition variability and lake water properties; and (3) characterize and project lake ice subsurface-surface-atmosphere interaction and exchange processes in a changing climate using advanced remote sensing techniques. Ultimately, our goal is to develop transferable methods for predicting the sensitivity and vulnerability of cold-region lakes to climate change. By combining field observations, remote sensing data, and statistical and mechanistic modeling, we aim to create a framework for predictively assessing the coupled hydrodynamic and biogeochemical evolution of large lakes in cold regions worldwide.

Dr. Homa Kheyrollah Pour is Canada Research Chair in Remote Sensing of Environmental Change. She leads Remote Sensing of Environmental Research Research Group (ReSEC) with focus on understanding the complex environmental issues in northern cold regions, due to rising demands on land and freshwater resources and accelerating climate change. Her research investigates the response of cold region physical and hydrological processes related to changing the climate, such as lake ice, snow cover, water quality, and land cover incorporates satellite observations of surface and subsurface processes in mesoscale numerical models. She is leading several projects in Northwest Territories and working closely with the Indigenous communities on their current environmental issues related to ice road safety and water quality. Dr. Kheyrollah Pour is the Executive Director of the Cold Regions Research Centre (CRRC) and serves as the co-chair for the NASA COLORS project on Indigenous Knowledge/Co-Production of Knowledge Working group. She is a strong advocate for evidence-based decision-making and sits on the Board of Directors for Canadian Science Policy Centre. She is an Associate Editor for the Cryosphere Journal. Dr. Kheyrollah Pour holds a PhD and MSc in Physical Geography and Geomatics from the University of Waterloo, Canada.