densities and not mix, allowing each to flow past each other mostly uninhibited.

North Brazil Current Rings

From July to February, it is quite common for the current to separate from the coast and curve back into itself. Since the current can be quite large, it is easy for large anticyclonic rings to generate, which separate from the main mass of the current and move northwestward with the prevailing winds. The mean diameter of the rings is about 300 kilometers, and

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