Seasonal Circulation on the Western and Central Scotian Shelf*
| Autor: | Jennifer A. Shore, Charles G. Hannah, Christopher E. Naimie, John W. Loder |
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| Rok vydání: | 2001 |
| Předmět: | |
| Zdroj: | Journal of Physical Oceanography. 31:591-615 |
| ISSN: | 1520-0485 0022-3670 |
| DOI: | 10.1175/1520-0485(2001)031<0591:scotwa>2.0.co;2 |
| Popis: | A realistic representation of 3D seasonal circulation and hydrography on the western and central Scotian Shelf has been obtained from historical observations and a combination of diagnostic and prognostic numerical models with forcing by tides, wind stress, and baroclinic and barotropic pressure gradients. The major current features—the southwestward Nova Scotian and shelf-edge currents, and partial gyres around Browns and Sable Island Banks—are found to persist year-round but with significant seasonal changes. Comparison with current meter observations shows good agreement for the Browns Bank, southwest Nova Scotia, and inner-shelf regions, and poorer agreement in the Sable Island Bank and shelf-edge regions where current and density observations are sparser and tidal influences weaker. There is significant spatial structure in the seasonal circulation and hydrography, and in the underlying dynamical processes. On the shelf scale there are substantial changes in stratification, potential energy,... |
| Databáze: | OpenAIRE |
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