boundary current

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The northward- or southward-directed ocean-water current which flows parallel and close to a continental margin. Such currents are caused by the deflection of eastward- and westward-flowing currents by the continental land masses. Boundary currents on the western margins of ocean basins, such as the Gulf Stream and the Kuroshio Current, are deep, narrow, fast-moving currents; currents along the eastern boundaries, such as the Canaries Current and the California Current, tend to be relatively shallow, broad, diffuse and slow-moving.

Subjects: Meteorology and Climatology — Ecology and Conservation.

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