DISTRIBUTION OF ENERGY WITH RESPECT TO LATITUDE

DISTRIBUTION OF ENERGY WITH RESPECT TO LATITUDE - Earth 002...

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Earth 002 Tuesday, February 2nd, 1999 Announcements: Lecture notes: DISTRIBUTION OF ENERGY WITH RESPECT TO LATITUDE The distribution of energy over the earth varies from place to place. When solar rays hit the earth at an angle, the amount of energy received is twice as great as when it hits the earth straight on This explains why the North and South Poles receive so much less energy than the Tropics HEAT TRANSFER Heat Capacity -the amount of energy it takes to change something's temperature (ex. oceans have a very high heat capacity, land has almost none)
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There are a wide variety of energy imbalances at different areas on earth--Tropical Rainforests receive 93%, Oceans get 93%-50%, and the Desert gets 75% HEAT TRANSFER MECHANISMS Radiation --heat radiates into the earth either through its interior or the sun Conduction --molecules bumping together and transferring heat Convection --vertical motions Advection --horizontal motions Phase Changes
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