Ocean circulation refers to the global system of ocean currents, which involves the movement of water through various patterns and cycles. This process is driven by factors such as wind, temperature differences, salinity, and the rotation of the Earth. Ocean circulation plays a crucial role in regulating climate, distributing heat around the planet, and supporting marine life. It also helps to transport nutrients from deep waters up towards the surface, which supports entire ecosystems. Overall, ocean circulation is an essential component of our planet's natural systems and has far-reaching impacts on global weather patterns and environmental health.