Chapter_2_notes - GEOG 101 Chapter 2 The Global Energy...

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Unformatted text preview: GEOG 101 Chapter 2 The Global Energy System Chapter 2 The Global Energy System ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ The Global Energy Balance Steady-state conditions no significant change of temperature over time The sun is the source of virtually all energy on the earth but not necessarily the direct source Geothermal energy sources are negligible Energy is transferred in the form of Electromagnetic Radiation ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Electromagnetic Radiation Electromagnetic radiation can be described as a series of waves having different wavelengths Wavelength is inversely proportional to frequency ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ 1 GEOG 101 Chapter 2 The Global Energy System Electromagnetic Radiation ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Electromagnetic Radiation ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Electromagnetic Radiation ALL objects at a temperature above absolute zero emit electromagnetic radiation Wiens Law: max x Temp = constant Wavelength of maximum emission is inversely proportional to temperature Sun 5000 o C 0.5 to 1.0 micrometers Visible Light Spectrum SHORTWAVE Earth 15 o C 5 to 10 micrometers Far Infrared (Heat) Spectrum LONGWAVE ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ 2 GEOG 101 Chapter The Global Energy System Electromagnetic Radiation ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Electromagnetic Radiation Electromagnetic radiation can be:...
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Chapter_2_notes - GEOG 101 Chapter 2 The Global Energy...

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