1Lecture Ch. 12b• Atmospheric heat engine– Latitudinal and meridional heat transfer– Walker circulation and Aus-Asia monsoons– Efficiency, irreversibility, entropy– Hydrological cycle• Current research– Aerosols, precipitation, and evaporationCurry and Webster, Ch. 12For Tuesday: Read Ch. 13For Dec 2: Review Past Homework, Quizzes, Reading, MidtermThe Atmospheric “Heat Engine”Atmospheric Heat EngineAtmospheric Entropy• Difference between energy and entropy flux• Irreversible processesAtmospheric Entropy• Internal production of entropy by Earth2Hydrological Cycle• Definition• Residence timesLatitudinal Heating Distribution• Net heating at equator• Net cooling at poles3Heating and Circulation• Fluid motion from vertical density gradientMeridional Heat Transfer• Equator-to-pole heat transportZonal Heat Transfer• Walker circulation• Asian-Australian
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