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10.3 Distributing the Heat p Energy from the sun radiates to the Earth and is absorbed unequally on the planet.

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Presentation on theme: "10.3 Distributing the Heat p Energy from the sun radiates to the Earth and is absorbed unequally on the planet."— Presentation transcript:

1 10.3 Distributing the Heat p. 388 -396 Energy from the sun radiates to the Earth and is absorbed unequally on the planet.

2 Why do some areas absorb more radiation than others? Earth’s tilt on axis

3 Albedo effect Ice, snow, clouds reflect Darker land absorbs

4 How Oceans Effect Distribution of Heat Large Reservoirs of Heat 1.Water has high specific heat capacity 2.Water has low albedo, high absorption (90% of incoming solar radiation is absorbed

5 Large Reservoirs of Heat 3. High heats of fusion and vaporization 4. Water is a fluid and heat can be distributed

6 Ocean Currents Large effect on weather in coastal communities Influence worldwide climate

7 Gulf Stream Surface current: starts in Caribbean and flows up the Eastern coastline of US and Canada up to British Isles. Also called North Atlantic Drift.

8 El Nino Wind Direction over the South Pacific reverses and winds flow eastward Heavy rains on west coast of S. America, drought in SE Asia and N Australia

9 How does El Nino effect N America? While most of effects of El Nino are (-) (floods, drought, famine) it does cause warming in western N. America in winter months and a decrease in intensity of Atlantic hurricanes and tornadoes in Canada and US

10 What is La Nina? Increase strength of westward winds = cooling of surface waters of eastern equatorial Pacific Warmer air to S Asia, Australia

11 Effects of La Nina in N. America Cold air from Alaska moves S across western Canada and US (1996 LONG winter!) East becomes warmer and drier

12 Prevailing Winds

13 4 main prevailing winds

14 Coriolis Effect

15 Jet Stream

16 Ocean Breezes


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