Gulf of St. Lawrence

Project

One of the most distinct characteristics of the sea ice off Canada's east coast is its dynamic movement in response to atmospheric and oceanic forcing. The predominant NW winds and the strong southwards flowing Labrador Current moves locally-formed ice and ice formed at higher latitudes rapidly southwards until it is consumed by the warm waters around the Grand Banks. Icebergs that calve from glaciers in northern Baffin Bay move south along the Labrador coast with the pack ice. They present a major hazard to marine shipping and offshore operations.

Although some ice enters the Gulf of St. Lawrence from the Labrador Shelf, most of it is locally grown and less than 1 m thick. Under predominantly westerly winds, it moves from the Gulf to the Scotian Shelf where it melts in the warm Atlantic waters.

The Canadian Coast Guard, based in Charlottetown, PEI, supports Canadian Ice Service ice chart verification, seal habitat tracking, and the study of ice forces on the Confederation Bridge with late winter helicopter ice surveys.

Instruments

Data

  1. EM Helicopter Data
  2. Mooring Data

Results

Related Projects

Related Publications

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  • Belliveau, D. J., H. Hayden, and S. J. Prinsenberg. 2001. "Ice Conditions at the Confederation Bridge - Winter 2000"
  • Belliveau, D. J., H. Hayden, and S. J. Prinsenberg. 2001. "Ice Drift and Draft Measurements from Moorings at the Confederation Bridge"
  • Hayden, H., D. Belliveau, and S. J. Prinsenberg. 2002. Ice Drift and Draft Measurements from Moorings at the Confederation Bridge January - March, 2000
  • Hayden, H. B., D. J. Belliveau, and S. J. Prinsenberg. 2003. Ice Drift and Draft Measurements from Moorings at the Confederation Bridge January - March, 2002
  • Prinsenberg, S. J. and I. K. Peterson. 2000. Labrador Shelf and Gulf of St. Lawrence Sea Ice Program, 1995-1998
  • Prinsenberg, S. J. and I. K. Peterson. 2001. "Variations in Air-Ice Drag due to Ice Surface Roughness"
  • Prinsenberg, S. J. and I. K. Peterson. 2002. "Variations in Air-Ice Drag due to Ice Surface Roughness"
  • Prinsenberg, S. J., S. Holladay, and J. Lee. 2002. "Measuring Ice Thickness with EISFlowTM, a Fixed-mounted Helicopter Electromagnetic-laser System"
  • Prinsenberg, S. J. and I. K. Peterson. 2003. "Comparing ice chart parameters against ice observations"
  • van der Baaren, A. and S. J. Prinsenberg. 2001. "Pack Ice Thickness and Concentration Measurements from the Area Around Confederation Bridge (Canada) Using Helicopter-borne Sensors"
  • van der Baaren, A. and S. J. Prinsenberg. 2001. Satellite-tracked Ice Beacon Program, 1999-2001
  • van der Baaren, A. and S. J. Prinsenberg. 2006. Wind Forcing of Ice Drift in the Southern Gulf of St. Lawrence: Satellite-tracked Ice Beacon Program 2004