• Gerkema, T., and V. I. Shrira, 2005: Near inertial waves in the ocean: Beyond the “traditional approximation.”. J. Fluid Mech., 529 , 195219.

    • Search Google Scholar
    • Export Citation
  • Halle, C., and R. Pinkel, 2003: Internal wave variability in the Beaufort Sea during the winter of 1993/1994. J. Geophys. Res., 108 .3210, doi:10.1029/2000JC000703.

    • Search Google Scholar
    • Export Citation
  • Pinkel, R., 2005: Near-inertial wave propagation in the western Arctic. J. Phys. Oceanogr., 35 , 645665.

  • Schmitt, R. W., J. R. Ledwell, E. T. Montgomery, K. L. Polzin, and J. M. Toole, 2005: Enhanced diapycnal mixing by salt fingers in the thermocline of the tropical Atlantic. Science, 308 , 685688.

    • Search Google Scholar
    • Export Citation
  • Timmermans, M-L. E., and C. Garrett, 2006: Evolution of the deep water in the Canadian Basin in the Arctic Ocean. J. Phys. Oceanogr., 36 , 866874.

    • Search Google Scholar
    • Export Citation
  • Timmermans, M-L. E., C. Garrett, and E. Carmack, 2003: The thermohaline structure and evolution of the deep waters in the Canada Basin, Arctic Ocean. Deep-Sea Res. I, 50 , 13051321.

    • Search Google Scholar
    • Export Citation
  • van Haren, H., and C. Millot, 2005: Gyroscopic waves in the Mediterranean Sea. Geophys. Res. Lett., 32 .L24614, doi:10.1029/2005GL023915.

    • Search Google Scholar
    • Export Citation
All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 190 98 4
PDF Downloads 118 59 1

Dynamics in the Deep Canada Basin, Arctic Ocean, Inferred by Thermistor Chain Time Series

View More View Less
  • 1 Woods Hole Oceanographic Institution, Woods Hole, Massachusetts
  • | 2 Fisheries and Oceans Canada, Institute of Ocean Sciences, Sidney, British Columbia, Canada
  • | 3 Woods Hole Oceanographic Institution, Woods Hole, Massachusetts
Restricted access

Abstract

A 50-day time series of high-resolution temperature in the deepest layers of the Canada Basin in the Arctic Ocean indicates that the deep Canada Basin is a dynamically active environment, not the quiet, stable basin often assumed. Vertical motions at the near-inertial (tidal) frequency have amplitudes of 10– 20 m. These vertical displacements are surprisingly large considering the downward near-inertial internal wave energy flux typically observed in the Canada Basin. In addition to motion in the internal-wave frequency band, the measurements indicate distinctive subinertial temperature fluctuations, possibly due to intrusions of new water masses.

Corresponding author address: Mary-Louise Timmermans, WHOI, MS 21, Woods Hole, MA 02453. Email: mtimmermans@whoi.edu

Abstract

A 50-day time series of high-resolution temperature in the deepest layers of the Canada Basin in the Arctic Ocean indicates that the deep Canada Basin is a dynamically active environment, not the quiet, stable basin often assumed. Vertical motions at the near-inertial (tidal) frequency have amplitudes of 10– 20 m. These vertical displacements are surprisingly large considering the downward near-inertial internal wave energy flux typically observed in the Canada Basin. In addition to motion in the internal-wave frequency band, the measurements indicate distinctive subinertial temperature fluctuations, possibly due to intrusions of new water masses.

Corresponding author address: Mary-Louise Timmermans, WHOI, MS 21, Woods Hole, MA 02453. Email: mtimmermans@whoi.edu

Save