The Canary Current Geoffrey Grek. Canary Current Stats Flows North to South from 30°N to 10°N and offshore to 20°W Very wide ~1000 km Cold water due to.

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Presentation transcript:

The Canary Current Geoffrey Grek

Canary Current Stats Flows North to South from 30°N to 10°N and offshore to 20°W Very wide ~1000 km Cold water due to upwelling along coast On average 500 m deep and flows at cm/s Canary Island Archipelago reaches depth of 3000 m and impedes path of current

The Canary Current Eastern Boundary Current Part of the North Atlantic Subtropical Gyre Flows southwest along African coast Causes upwelling on the African coast

The Canary Current Eastern Boundary Current Part of the North Atlantic Subtropical Gyre Flows southwest along African coast Causes upwelling on the African coast

The Canary Current Driven by the trade winds Current velocity dependent on trade wind velocity Flow obstructed by Archipelago Island Always flows towards equator

Canary Current Eddies Form along the coastal boundary Length scales of 100 to 300 km Kinetic Energy values are less than 100 cm 2 s 2

Canary Current Eddies

Mass Transport Northward mass transport is positive in Figure on right Mostly southward mass transport Northward mass transport is caused by Equatorial countercurrent

Resources Joanna Gyory, Arthur J. Mariano, Edward H. Ryan, “The Canary Current” Pablo Sangrà, Ananda Pascual, Ángel Rodríguez-Santana, Francisco Machín, Evan Mason, et. al., 2009: The Canary Eddy Corridor: A major pathway for long-lived eddies in the subtropical North Atlantic, Deep Sea Research Part I: Oceanographic Research Papers, 56, A. Hernández-Guerra, F. Machín, A. Antoranz, J. Cisneros-Aguirre, et. Al., 2002: Temporal variability of mass transport in the Canary Current, Deep Sea Research Part II: Topical Studies in Oceanography, 49,