Oceanography
Ocean currents
Practise 5 PYQsConcepts to cover
- Forces driving currents: solar heating, winds, gravity, Coriolis force; density differences
- Warm and cold currents; surface and deep currents; gyres
- Atlantic currents: Gulf Stream, North Atlantic Drift, Canary, Labrador, Brazil, Benguela
- Pacific currents: Kuroshio, Oyashio, California, Peru (Humboldt), East Australian
- Indian Ocean currents: monsoon reversal, Agulhas, West Australian, Somali current
- Equatorial currents and the equatorial counter-current in the doldrums
- Effects: climate moderation, fishing grounds where warm and cold currents meet, fog, western tropical oceans warmer than eastern
- Deep thermohaline circulation and upwelling