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Geertsema, Marten; Menounos, Brian; Bullard, Gemma; Carrivick, Jonathan; Clague, John; Dai, Chunli; Donati, Davide; Ekstrom, Goran; Jackson, Jennifer; Lynett, Patrick; Pichierri, Manuele; Pon, Andy; Shugar, Dan; Stead, Doug; Del Bel Belluz, Justin; Friele, Pierre; Giesbrecht, Ian; Heathfield, Derek; Millard, Tom; Nasonova, Sasha; Schaeffer, Andrew; Ward, Brent; Blaney, Darren; Blaney, Erik; Brillon, Camille; Bunn, Chris; Floyd, William; Higman, Bretwood; Hughes, Katie; McInnes, Will; Mukherjee, Kriti; Sharp, Meghan — 2022-02-14 <p style="margin-top:17px;margin-bottom:17px;text-align:justify;">We describe and model the evolution of a recent landslide and outburst flood in the southern Coast Mountains, British Columbia, Canada. About 18 Mm³ of rock descended 1000 m from a steep valley wall and traveled across the toe of a glacier before entering a 0.6 km² glacier lake and producing a &gt;100-m high wave. Water overtopped the lake outlet and scoured a 10-km long channel before depositing debris on a 2 km² fan below the lake outlet. Floodwater, organic detritus, and fine sediment entered a fjord where it produced a 70-km long turbidity current and altered turbidity, water temperature, and water chemistry for weeks. The outburst flood destroyed forest and culturally significant salmon spawning and rearing habitat. Physically based models of the landslide, the displacement wave, and the flood provide real-time simulations of the event and can improve understanding of similar hazard cascades and the risk they pose.</p> https://creativecommons.org/publicdomain/zero/1.0/

Pradhananga, Dhiraj; Pomeroy, John; Aubry-Wake, Caroline; Munro, D. Scott; Shea, Joseph M.; Demuth, Michael N.; Kirat, Nammy Hang; Menounos, Brian; Mukherjee, Kriti — 2024-04-25 Hydrological, meteorological, glaciological, and geospatial data of the Peyto Glacier Research Basin (PGRB) in the Canadian Rockies are presented. Peyto Glacier has been of great interest to glaciological and hydrological research since the 1960s for the study of mass and water balance during the International Hydrological Decade (IHD, 1965-1974). Intensive studies of the glacier and observations of the glacier mass balance continued after the IHD, when the initial seasonal meteorological stations were discontinued, then restarted as continuous stations in the late 1980s. The corresponding hydrometric observations were discontinued in 1977 and restarted in 2013. Data sets presented here include: high resolution, co-registered DEMs derived from original air photos and LiDAR surveys; hourly off-glacier meteorological data recorded from 1987 to present; precipitation data from Bow Summit; and long-term hydrological and glaciological model forcing datasets derived from bias-corrected reanalysis products. https://creativecommons.org/licenses/by/4.0/