Polynyas and Tidal Currents in the Canadian Arctic Archipelago | Zendy

Charles G. Hannah | Zendy; Frédéric Dupont | Zendy; Michael Dunphy | Zendy

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Polynyas and Tidal Currents in the Canadian Arctic Archipelago

Author(s) -

Charles G. Hannah,

Frédéric Dupont,

Michael Dunphy

Publication year - 2009

Publication title -

arctic

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 59

eISSN - 1923-1245

pISSN - 0004-0843

DOI - 10.14430/arctic115

Subject(s) - archipelago , oceanography , arctic , tidal current , excursion , current (fluid) , geology , the arctic , law , political science

A tidal model of the Canadian Arctic Archipelago was used to map the strength of the tidal currents, tidal mixing ( h / U 3), and the vertical excursion associated with the tidal currents that drive water upslope and downslope. The hot spots in these quantities correspond to the location of many of the small polynyas in the archipelago, supporting the idea that the tidal currents make an important contribution to the dynamics of many of these recurring polynyas. The potential link with tidal mixing means that these locations may have enhanced plankton production in the summer.

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