Group3_Radiation_Presentation

Group3_Radiation_Presentation - Radiation Group 3: Manabe...

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Radiation • Group 3: Manabe and Wetherald (1975) and Trenberth and Fasullo (2009) – What is the energy balance of the climate system? How is it altered by greenhouse gases? How does it reach a new equilibrium? What does that new equilibrium look like? (Jenna and Josh) – Why does the stratosphere cool? (Peng) convective adjustment we discussed in class? (Ryan)
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What is the energy balance of the climate system? RT: Net radiation at top of atmosphere ASR: Absorbed Solar Radiation – affected by planetary albedo and cloud cover OLR: Outgoing longwave radiation – affected by surface temperature and cloud cover R T = ASR - OLR
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How is the energy balance altered by greenhouse gases? Greenhouse gases increase radiative forcing → Higher surface temperatures, More evaporation → More water vapor in atmosphere With higher surface temperatures comes less snow and ice, reducing the planetary albedo The role of clouds is examined in the paper by Trenberth and Fasullo (2009)
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Trenberth, K. E., and J. T. Fasullo (2009), Global warming due to increasing absorbed solar radiation, Geophys. Res. Lett., 36, L07706, doi:10.1029/2009GL037527. Changes in net radiation
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This note was uploaded on 01/08/2012 for the course MPO 551 taught by Professor Zhang,c during the Summer '08 term at University of Miami.

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Group3_Radiation_Presentation - Radiation Group 3: Manabe...

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