10 3 Distributing the Heat p 388 396

  • Slides: 16
Download presentation
10. 3 Distributing the Heat p. 388 -396 Energy from the sun radiates to

10. 3 Distributing the Heat p. 388 -396 Energy from the sun radiates to the Earth and is absorbed unequally on the planet.

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

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

Albedo effect Ice, snow, clouds reflect Darker land absorbs

Albedo effect Ice, snow, clouds reflect Darker land absorbs

How Oceans Effect Distribution of Heat Large Reservoirs of Heat 1. Water has high

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

Large Reservoirs of Heat • 3. High heats of fusion and vaporization • 4.

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

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

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

Gulf Stream • Surface current: starts in Caribbean and flows up the Eastern coastline

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.

El Nino • Wind Direction over the South Pacific reverses and winds flow eastward

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

How does El Nino effect N America? • While most of effects of El

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

What is La Nina? • Increase strength of westward winds = cooling of surface

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

Effects of La Nina in N. America • Cold air from Alaska moves S

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

Prevailing Winds

Prevailing Winds

4 main prevailing winds

4 main prevailing winds

Coriolis Effect

Coriolis Effect

Jet Stream

Jet Stream

Ocean Breezes

Ocean Breezes