20. Climate Change_06

20. Climate Change_06 - CLIMATE CHANGE OBJECTIVES 1 Know...

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CLIMATE CHANGE OBJECTIVES 1) Know what happens to the amount of radiation emitted and the wavelength of maximum output from a body as its temperature increases or decreases. Intensity over Amount is proportional to T^4 Tmax = 2900/T Wavelength decreases when temperature increases 2) What part of the EMR spectrum is the maximum output of the Sun, and what part of the EMR spectrum is the maximum output of the Earth? Sun – Visible light/radiation Earth – Thermal Infared 3) What aspect of the Earth’s energy balance is least understood? Clouds 4) What is the principle reason that the surface of Venus is so much hotter than the surface of Earth? Greenhouse Effect 5) What is the “faint young sun” paradox, and what mechanism might resolve this paradox? The Planet maintaining a habitable temperature despite over time changes in the luminosity of the sun. - Removal of CO2 slowly increased, Hydrolysis
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6) What are the six major climate change triggers, and which one of these are we most concerned about at present? - Variations in solar output - Atmospheric composition change (CO2 and other volcanic gasses) - Milankovich cycles - Elevation and distribution of continents - Ocean interactions - Biological and physical feedback mechanisms 7) Know what the principal greenhouse and icehouse gasses are. Know how these gasses work on the climate system to heat or cool the earth. Greenhouse gasses – prevent loss of radiant heat (infared) from earth.
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This note was uploaded on 04/16/2008 for the course SYGN 101 taught by Professor Shorey during the Spring '08 term at Mines.

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20. Climate Change_06 - CLIMATE CHANGE OBJECTIVES 1 Know...

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