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Presentation transcript:

(Pinet)

Major ocean current systems 2

Geostrophy – a frictionless balance between the pressure gradient and the Coriolis acceleration – generates currents that move around the ‘hill’

Sea Surface Topography Sea Surface Temperature

Snapshot of ocean temperature – shows lots of eddies… Warm-core ring Cold-core ring 5

Wind-Driven Circulation Section along 36o North Gulf Stream STRONG NORTHWARD FLOW Open Gyre SLOW SOUTHWARD FLOW km 1 2 3 Med Outflow Part of Thermohaline Circulation 4 5 6 Wind-Driven Circulation Section along 36o North (Fuglister, 1960)

And warmer than the Pacific…. 7

Mediterranean and Red Sea make Atlantic and Indian Oceans salty 8

9

Antarctic Bottom Water Thermohaline sources North Atl Deep Water Mediterranean water Pacific Deep water Red Sea Ant. Inter. water Antarctic Bottom Water 10