Ocean Currents Explorer
Interact with 12 major surface currents on a world map. Click any current to animate its flow and learn about temperature, speed, and how it shapes regional climates.
Click a current to explore. Hover to highlight.
Ocean Current Details
Click any current on the map to explore its characteristics, temperature, and climate significance.
How Ocean Currents Work
Surface Currents
Wind-driven surface currents occupy the top 100-200 meters of the ocean. The Coriolis effect from Earth's rotation bends them clockwise in the Northern Hemisphere and counterclockwise in the Southern, forming large circular gyres.
Thermohaline Circulation
Deep ocean circulation is driven by differences in water temperature (thermo) and salinity (haline). Cold, salty water is denser and sinks, driving a slow global conveyor belt that redistributes heat over centuries.
Climate Impact
Currents transport vast amounts of heat from the tropics toward the poles. The Gulf Stream keeps Western Europe 5-10 C warmer than comparable latitudes. Cold upwelling currents bring nutrients to the surface, supporting fisheries.
Warm vs Cold Currents
- Warm currents flow away from the equator toward the poles, releasing heat to the atmosphere and warming coastal regions.
- Cold currents flow from polar regions toward the equator. They often cause coastal fog, desert conditions, and support rich fisheries through upwelling.
Notable Examples
- Gulf Stream - one of the fastest currents, transporting 30 million cubic meters of water per second.
- Antarctic Circumpolar - the only current that flows all the way around the globe with no land barrier.
- Humboldt Current - cold upwelling along South America supports some of the world's richest fishing grounds.
