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IPS and ACDP Moorings

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Applications ~Specifications ~ Brochure

SWIP Update ~ Technical Paper 1 ~ Technical Paper 2

Click to enlarge view

Specifications

Shore power requirement: 8-15V, 90 mA nominal current draw (or optional submersible external battery pack).
Range: 1 to 20 m
Water Temperature: 0 to 4 °C ± 1 °C and 4 to 10 °C ± 2 °C
Tilt Useful range: ± 75 degrees on both axis.
Tilt Accuracy: ± 0.1° over the range of ± 20 degrees on both axis
Accuracy on range: ±0.05 m. The accuracy of the ice draft depends on the existing water level sensor.
Standard output signal: RS-422

Applications

BC Hydro uses new Shallow Water Ice Profiler

BC Hydro of Burnaby, BC Canada, is using the SWIP on the Peace River where they own and operate the Bennett and Peace Canyon dams. During the winter months, ice in the river starts to form and can cause flooding through ice jamming. BC Hydro therefore has an interest in managing flood risk while optimizing power production. One method is to use river ice computer models to help forecast and avoid ice jam problems. However, extensive field data are needed to calibrate these models.

The new Shallow Water Ice Profiler (SWIP) is being used to collect these data at the town of Peace River, Alberta, the largest community on the Peace River with ice jam flooding potential. The SWIP has been placed on the riverbed and will measure the position of the bottom of the ice floes. Comparing the data to a measured water level, the thickness of the ice can be calculated. The SWIP will also be able to measure the surface ice concentration since it will give values equal to the water surface for readings with no ice. Once a solid ice cover forms, the SWIP will monitor the ice thickness growth and erosion during the rest of the ice season.