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Earth’s energy balance Earth’s climate system Glacial cycles Natural variability Volcanic eruptions
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Key terms: –Radiation (long wave vs. short wave) –Albedo –Convection, conduction, latent heat –Greenhouse effect
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Troposphere Stratosphere Mesosphere Thermosphere Exosphere 0-15km 50-85km 15-50km 100-400km >400km
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Equator 30˚S 60˚S Hadley Cell Ferrel Cell Polar Cell
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Key Terms –Atmospheric layers (e.g. Troposphere and Stratosphere) –Hadley cell –Oceanic currents
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Aphelion Perihelion
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23.5˚N 23.5˚S 22.1˚-24.2˚
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13,000 years Polaris Vega
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Sunspot Plage
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Key terms: –Milankovitch cycles Eccentricity –Aphelion –Perihelion Obliquity Precession –Sunspots Plages
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10 0 10 810 10 4 Meters Seconds 10 6 (Week) (Hour) 10 8 (Year) 10 2 (Minute) Turbulence Tornadoes Thunderstorms Tropical Cyclones El Niño- Southern Oscillation
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Neutral
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El Niño / Warm event
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La Niña / Cool event
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Key terms: –Weather vs. Climate –El Niño-Southern Oscillation –Scales: time and spatial
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H2OH2O CO 2 SO 2 H2H2 CO H2SH2S HCl HF
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NOAA ESRL
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Earth’s radiation is balanced through incoming (solar) and outgoing (longwave) radiation The atmosphere plays a role through greenhouse gases Earth’s climate can be affected by changes in the chemical composition of the atmosphere and changes in solar radiation
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Broecker, Wallace S. 1991. The great ocean conveyor. Oceanography 4(2): 79-89. Broecker, Wallace S. 1982. Glacial to interglacial changes in ocean chemistry. Progress in Oceanography 11(2): 151-197. Kump, Lee R., James F. Kasting, and Robert G. Crane. 2010. The earth system. Prentice Hall, San Francisco, U.S.A. McCormick, M. Patrick, Larry W. Thomason, and Charles R. Trepte. 1995. Atmospheric effects of the Mt Pinatubo eruption. Nature 373.6513: 399-404. [USGS] Unites States Geological Survey. Volcanic Gases and Their Effects. Available from: http://volcanoes.usgs.gov/hazards/gas/index.php (accessed February 20, 2014). http://volcanoes.usgs.gov/hazards/gas/index.php
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