COASTAL UPWELLING OFF SOUTH WEST NOVA SCOTIA SIMULATED WITH A HIGH RESOULTION BAROCLINIC OCEAN MODEL
Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICOPMAS12_380
تاریخ نمایه سازی: 30 دی 1397
Abstract:
The coastal waters off South West Nova Scotia (SWNS) lie between the Scotian Shelf and Gulf of Maine (Figure 1). These waters are distinguished for their high levels ofproductivity, characterized by cold and nutrient-rich surface waters during summer [1]. Previous studies have shown that local upwelling and tidal mixing contribute tothe productivity of this region [2-3]. According to these studies, tidal rectification generates cross-isobath onshore currents that bring water parcels from deeper regions toshallower area. The water parcels are then vertically transported to the surface by strong tidal mixing. Although the mechanism for creating onshore currents has beenidentified, the effects of baroclinicity on these currents have not been addressed. Furthermore, the origin of the water parcels entering the upwelling area and theirdestination is not clear. This paper attempts to study these aspects through results from a high resolution numerical model and particle tracking.
Authors
Fatemeh Chegini
Department of Oceanography, Dalhousie University, Halifax, Canada
Youyu Lu
Bedford Institute of Oceanography, Halifax, Canada
Hal Ritchie
Meteorological Research Division, Environment Canada, Halifax, Canada
Keith Thompson
Department of Oceanography, Dalhousie University, Halifax, Canada,