Ocean currents are large-scale movements of seawater that flow through the world's oceans. They are driven by factors such as wind, the Earth's rotation, and differences in water temperature and salinity. These currents can be found at the surface and deep within the ocean, playing a crucial role in regulating climate and weather patterns. These currents can be classified into two main types: surface currents and deep-water currents. Surface currents, like the Gulf Stream, are primarily influenced by wind and can affect coastal climates. Deep-water currents, part of the global thermohaline circulation, are driven by differences in water density and help distribute heat and nutrients throughout the ocean.