SFU geography master’s student Kyle Kusack with his large-scale water flume in his SFU lab.
SFU geography master's student Kyle Kusack with his large-scale water flume in his SFU lab. Landslides in B.C. canyons can cause devastating effects on salmon spawning grounds. To better understand their causes, Simon Fraser University geography master's student Kyle Kusack is studying how the flow of rivers may factor into their occurrence. Shortly after discovering the Fraser Canyon Big Bar landslide in 2019, Kusack, an outdoor enthusiast, began investigating a morphology in bedrock canyons known as constriction-pool-widening (CPW). CPW consists of deep scour pools where the river becomes laterally narrow, followed by downstream channel widening, and can be found in all 42 Fraser River canyons. The observed channel widening is thought to occur by erosion undercutting the canyon walls, which in turn may play a part in causing landslides. Learning more about how this flow system works will enable researchers to predict future landslide locations better.
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