Pacific Ocean:

1. Equatorial Currents System: North and South Equatorial Currents flow from east to west, while the Equatorial Counter Current flows from west to east between them.
2. Kuroshio Current: A warm, west boundary current, also known as the Black Stream, regulating Japan’s climate.
3. California Current: A southward flowing, upwelling-rich extension of the Aleutian Current along North America’s west coast.
4. Humboldt or Peruvian Current: A nutrient-rich, low-salinity current flowing from Chile to Peru along South America’s west coast.
5. Kurile or Oyashio Current: A nutrient-rich, counterclockwise sub-arctic current originating in the Arctic Ocean, flowing south in the western North Pacific.
6. North Pacific Current: Formed by the collision of Kuroshio and Oyashio currents, circulating counterclockwise in the Western North Pacific.
7. Alaskan Current: A northward diversion of the North Pacific Current, influencing the coastal waters of Alaska.
8. East Australian Current: Transports tropical marine life to sub-tropical habitats along Australia’s southeast coast.
9. Western Australian Current: A seasonal, cold current, part of the Antarctic Circumpolar Current, stronger in summer along Australia’s west coast.

Atlantic Ocean:

1. Equatorial Currents System: North and South Equatorial Currents flow from east to west, while the Equatorial Counter Current flows from west to east between them.
2. Gulf Stream: A warm, wind-driven current splitting into the North Atlantic Drift and Canary Current, impacting Northern Europe’s climate.
3. Labrador Current: A cold current flowing south from the Arctic, meeting the warm Gulf Stream to create rich fishing grounds.
4. Canary Current: A low salinity current linking the Arctic to the North Atlantic, contributing to sea-ice export and freshwater sink.
5. Brazilian Current: A warm current along Brazil’s south coast, merging with the cold Falkland Current, creating a temperate sea.
6. Falkland Current: A cold branch of the Antarctic Circumpolar Current that mixes with the warm Brazil Current, influencing the temperate climate.
7. Norwegian Current: A wedge-shaped extension of the North Atlantic Drift, flowing along Norway’s coast and feeding Arctic inflows.
8. Florida Current: Flows around Florida, joining the Gulf Stream at Cape Hatteras.

Indian Ocean:

1. Equatorial Currents System: North and South Equatorial Currents flow from east to west, while the Equatorial Counter Current flows from west to east between them.
2. Northeast Monsoon Current: The Indian North Equatorial Current flows southwest and west across the Equator during the northeast monsoon.
3. Southwest Monsoon Current: A broad eastward current dominating the Indian Ocean during the southwest monsoon season.
4. Somali Current: A monsoon-influenced, Gulf Stream-analogous current with significant upwelling in the Indian Ocean.
5. Mozambique Current: Flows in the Mozambique Channel between Mozambique and Madagascar along Africa’s east coast.
6. Agulhas Current: The largest western boundary current, flowing southward along Africa’s east coast.

Arctic Ocean:

1. Labrador Current: A cold current flowing south from the Arctic, meeting the warm Gulf Stream to create rich fishing grounds.
2. Kurile or Oyashio Current: A nutrient-rich, counterclockwise sub-arctic current originating in the Arctic Ocean, flowing south in the western North Pacific.
3. Norwegian Current: A wedge-shaped extension of the North Atlantic Drift, flowing along Norway’s coast and feeding Arctic inflows.

Southern Ocean:

1. Antarctic Circumpolar Current (ACC): Also known as West Wind Drift, this current flows clockwise from west to east around Antarctica.
2. Falkland Current: A cold branch of the Antarctic Circumpolar Current that mixes with the warm Brazil Current, influencing the temperate climate.
3. Western Australian Current: A seasonal, cold current, part of the Antarctic Circumpolar Current, stronger in summer along Australia’s west coast.