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More from James Prae Liclican
Ocean circulation
- 1. Components of theClimate System • Atmosphere • Ocean • Biosphere • Geosphere Image from NASA
- 2. Atmosphere & OceanCirculation • Atmospheric Circulation – Depends on density • Ocean Surface Circulation – Depends on the wind • Deep Ocean Circulation – Depends on density
- 3. Why is OceanCirculation Important? • Transport ~ 20% of latitudinal heat – Equator to poles • Transport nutrients and organisms • Influences weather and climate • Influences commerce
- 4. Temperature Structure ofOcean thermocline
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- 6. Wind driven surfacecurrents Wind-drive ocean surface currents • How fast? A few miles/hr (Gulf Stream off of Miami = 4.5 mph) • How much? Total water in ocean surface circulation = about 100 Amazon Rivers (20 million m3/s).
- 7. Atmosphere & OceanCirculation • Atmospheric Circulation – Depends on density • Ocean Surface Circulation – Depends on the wind • Deep Ocean Circulation – Depends on density
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- 11. Thermohaline Circulation North Atlantic DeepWater (NADW 15 million m3 of near surface water descend into the deep ocean each second.
- 12. Thermohaline Circulation -The Ocean Conveyor
- 13. Equatorial to polarheat transport and water flow
- 14. Ocean – AtmosphereCirculation
- 15. UNEQUAL HEATING OFEARTH BUT – Outgoing solar radiation is not as uneven
- 16. End of Reportin Ocean Circulation… Click here to go to: Agricultural, Industrial and Domestic use
Editor's Notes
- #4 4 th century BC ,Pytheas of Massalia, a Greek ship captain, explored eastern Atlantic Okeanos (Greek for “Great River”) because he found the ocean flowing south (Canary Current) and thought it was a river too wide to cross.
- #7 London = 51 deg N James Bay = 51 deg. N Edinburgh = 55deg N, same latitude as Ontario’s Polar Bear Provincial Park Total water in ocean surface circulation = about 100 Amazon Rivers (20 million m3/s). It requires 500-2000 years to complete cycle.
- #10 AVERAGE = 35 ppm or 3.5% denser
- #16 M&M fourth edition, solar constant = rate of solar radiation on surface perpendicular to the sun’s rays at the top of the atmosphere, 1.97 cal/cm2/min or 1372 watts/m2 Difference between perihelion (2.04 cal/me/min) vs 1.91 cal/m2/min at aphelion 1 watt/hr = 860 cal