Near-Inertial Internal Wave Field in the Canada Basin from Ice-Tethered Profilers
Autor: | Luc Rainville, John M. Toole, H. V. Dosser |
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Rok vydání: | 2014 |
Předmět: | |
Zdroj: | Journal of Physical Oceanography. 44:413-426 |
ISSN: | 1520-0485 0022-3670 |
DOI: | 10.1175/jpo-d-13-0117.1 |
Popis: | 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. |
Databáze: | OpenAIRE |
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