FREEZE-UP PROCESSES

Clients: Joint Industry Study

Ice-infested waters and heavily travelled maritime routes present unique challenges to oceanographic data collection. Coastal Frontiers has obtained oceanographic data in the Beaufort Sea to support the design, construction, and maintenance of various projects. The parameters studied include the following:

  • Wave height, period

  • Current speed and direction

  • Water level

  • Storm and ice movement conditions

  • Time lapse photos of storms and ice events

  • Data analysis correlates the wind, wave, storm surge, and current data to better predict extreme ocean events.

Specific deployment and recovery techniques developed to ensure the long-term safety of data collection systems include:

  • Ocean instrument deployments using both boats and helicopters

  • Bottom-founded tripods to minimize the potential for damage

  • or loss from deep-keeled ice floe or ship impacts

  • Instrument recovery through the Arctic ice cover in November- December following stabilization of the winter ice sheet

  • Recovery after freeze-up ensures complete data collection during severe storms of September-October.

KEY ASPECTS

  • Acquisition and analysis of publicly-available meteorological data, ice charts and satellite imagery

  • Acquisition and analysis of proprietary RADARSAT II images

  • Fixed-wing and helicopter-based reconnaissance missions to investigate large-scale features noted on satellite imagery and small-scale features beneath the resolution of the satellite imagery

  • Analysis of the nature and timing of freeze-up processes, including an assessment of inter-annual variations as well as long-term trends indicative of a changing Arctic climate