Near-inertial internal wave field in the Canada Basin from ice-tethered profilers
Near-inertial internal wave field in the Canada Basin from ice-tethered profilers
Date
2014-02
Authors
Dosser, Hayley V.
Rainville, Luc
Toole, John M.
Rainville, Luc
Toole, John M.
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DOI
10.1175/JPO-D-13-0117.1
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Keywords
Geographic location/entity
Arctic
Circulation/ Dynamics
Inertia-gravity waves
Internal waves
Observational techniques and algorithms
Profilers, oceanic
Arctic
Circulation/ Dynamics
Inertia-gravity waves
Internal waves
Observational techniques and algorithms
Profilers, oceanic
Abstract
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.
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Author Posting. © American Meteorological Society, 2014. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 44 (2014): 413–426, doi:10.1175/JPO-D-13-0117.1.
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Journal of Physical Oceanography 44 (2014): 413–426