Near-Inertial Internal Wave Field in the Canada Basin from Ice-Tethered Profilers

作者：Dosser Hayley V^*; Rainville Luc; Toole John M

来源：Journal of Physical Oceanography, 2014, 44(2): 413-426.

DOI：10.1175/JPO-D-13-0117.1

• Circulation/ Dynamics
• Internal waves
• Geographic location/entity
• Profilers, oceanic
• Observational techniques and algorithms
• Inertia-gravity waves
• Arctic

Salinity and temperature profiles from drifting ice-tethered profilers in the Beaufort gyre region of the Canada Basin are used to characterize and quantify the regional near-inertial internal wave field over one year. Vertical displacements of potential density surfaces from the surface to 750-m depth are tracked from fall 2006 to fall 2007. Because of the time resolution and irregular sampling of the ice-tethered profilers, near-inertial frequency signals are marginally resolved. Complex demodulation is used to determine variations with a time scale of several days in the amplitude and phase of waves at a specified near-inertial frequency. Characteristics and variability of the wave field over the course of the year are investigated quantitatively and related to changes in surface wind forcing and sea ice cover.

• 出版日期2014-2