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AGU: Geophysical Research Letters

 

Keywords

  • tides
  • tidal resonance
  • Hudson Strait

Index Terms

  • Oceanography: Physical: Surface waves and tides
  • Oceanography: General: Marginal and semi-enclosed seas
  • Oceanography: General: Numerical modeling

Abstract

GEOPHYSICAL RESEARCH LETTERS, VOL. 34, L17606, 5 PP., 2007
doi:10.1029/2007GL030845

On the resonance and influence of the tides in Ungava Bay and Hudson Strait

Brian K. Arbic

Institute for Geophysics, Jackson School of Geosciences, The University of Texas at Austin, Austin, Texas, USA

Pierre St-Laurent

Institut des Sciences de la Mer de Rimouski, Université du Québec à Rimouski, Rimouski, Québec, Canada

Graig Sutherland

Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia, Canada

Chris Garrett

Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia, Canada

The tides of Leaf Basin in Ungava Bay may be the world's highest. An analysis of the frequency dependence of the response to outside forcing, a normal mode analysis, and a study of the damped oscillation of an initial disturbance, suggest that the Ungava Bay/Hudson Strait region has a natural period of about 12.7 hours and so is close to resonance with the tidal forcing. The implications for regional and global tides in the present, past, and future are explored.

Received 30 May 2007; accepted 8 August 2007; published 8 September 2007.

Citation: Arbic, B. K., P. St-Laurent, G. Sutherland, and C. Garrett (2007), On the resonance and influence of the tides in Ungava Bay and Hudson Strait, Geophys. Res. Lett., 34, L17606, doi:10.1029/2007GL030845.

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