What are eddies?
According to a very interesting website The ocean is a huge body of water that is constantly in motion. General patterns of ocean flow are called currents. Many geographic globes and world maps show general patterns of currents at the ocean surface. They are given names like the Gulf Stream, which flows northward off the east coast of the United States, or the Eastern Australian Current (EAC), which flows to the south along eastern Australia (Remember Finding Nemo?). Currents are often mentioned in historical accounts of Columbus’ voyages to the New World. These currents are actually based on long term measurements. Ocean motion is actually far more complex and variable than globes and maps imply. In fact, if you were to place a small object in the ocean, say a rubber ducky with a global positioning system (GPS) antenna, and recorded its position, you would find that the rubber ducky often changes its direction. In some cases, the Rubber Ducky would move in nearly circular patterns. So
