g104_class10_earth_heat_budget

G104_class10_earth_h - Geography 104 Heat Energy Solar and gravitational energy are the fundamental sources of energy for the Earth's climate

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Heat Energy Solar and gravitational energy are the fundamental sources of energy for the Earth's climate system. Air-sea exchanges of heat (& freshwater) change density and drive circulation. - heat source into the ocean is solar radiation - heat lost from the ocean by: - latent heat (evaporation) - conduction (sensible ) - longwave radiation - reflected solar - ocean circulation moves (transports) heat Geography 104 - “Physical Geography of the World’s Oceans”
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heat into top of atmosphere = 100% Earth’s heating: incoming shortwave solar radiation
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heat out of top of atmosphere = 100% Earth’s cooling: reflected solar radiation , longwave , latent , and sensible heat
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atmosphere’s heat budget by % heat into atmosphere = 60%; 37% from land & ocean
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atmosphere’s heat budget by % heat into atmosphere = 60%; 37% from land & ocean heat out of atmosphere = 60%
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Earth’s heat budget (W m -2 ) Qsw = Qlw + Qlat + Qsens 168 W m -2 = 66 W m -2 + 78 W m -2 + 24 W m -2 in balance; no net heating or cooling
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Earth’s heat budget (W m -2 ) Longwave radiation: Earth’s surface atmosphere = 350 W m -2 Atmosphere Earth’s surface = 324 W m -2 26 W m -2 heats atmosphere
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This note was uploaded on 01/06/2010 for the course GEOG 104 taught by Professor Staff during the Fall '08 term at UCSB.

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G104_class10_earth_h - Geography 104 Heat Energy Solar and gravitational energy are the fundamental sources of energy for the Earth's climate

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