Author(s): Martin Jasek; John Marko; David Fissel
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Keywords: No Keywords
Abstract: Frazil ice detection and water velocity profile instruments were deployed in the Peace River in Northern Alberta, which is hydraulically regulated by upstream hydroelectric projects. The data are being collected to support studies related to ice jam occurrences and winter hydropower operations. Concurrent deployment of two Shallow Water Ice Profiling Sonars (SWIPS) of two different frequencies and an Acoustic Doppler Current Profiler (ADCP) was successful on the Peace River during the winter of 2008-2009. The paper describes the freeze-up, mid-winter and break-up ice processes in context with the ADCP and the higher of the two SWIPS frequency instruments and environmental parameters. Insights into the surface and suspended ice runs, ice cover stabilization and formation process, and ice cover frazil slush transport throughout the ice season were provided by the ADCP and SWIPS instruments. The formation of a grounded out freeze-up ice jam close to the instruments’ location allowed for the collection of data on the erosion of this blockage over the course of the winter.
Year: 2010