L11 Air Sea Interaction_Climate

L11 Air Sea Interaction_Climate - GEOL 107 L11 Sun is the...

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GEOL 107 L11 9/16/2011 1 Introduction to Climate: an Ocean Ͳ Atmosphere system Chapter 6 Sun is the primary source of energy for our planet Planetary Fun: Size of the Sun Sun emits primarily short wavelengths Planetary Energy Balance Amount in (solar) = Amount out (earth) Input, solar radiation (insolation) Primary source of heat energy, the sun short Ͳ wave radiation Planetary Energy Budget Output, Earth s radiation heat radiated by Earth long Ͳ wavelength radiation
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GEOL 107 L11 9/16/2011 2 Uneven Solar Heating Heat moved by Ocean & Atmosphere acts to reduce the equator to pole temperature gradient Today: atmosphere Next week: ocean circulation Uneven heating results in convection Equator Pole Wind flows from high pressure to low pressure Hadley cell convection Sinking air, hot & dry at surface subtropical Sinking air, hot & dry at surface subtropical Intertropical Convergence Zone (ITCZ) Trade Wind Convergence Zone of intense rainfall, storms
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