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Stratospheric Ozone Brent Greenhalgh and Carrie Welker Reviews in Earth Science Oct. 4, 2011

Stratospheric Ozone Brent Greenhalgh and Carrie Welker Reviews in Earth Science Oct. 4, 2011. September 17, 1979. October 1, 2010. (NASA, 2011-1). Natural State of Stratospheric Ozone. Ozone (O 3 ) is very small part of atmosphere ~90% of ozone is in the stratosphere

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Stratospheric Ozone Brent Greenhalgh and Carrie Welker Reviews in Earth Science Oct. 4, 2011

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  1. Stratospheric OzoneBrent Greenhalgh and Carrie WelkerReviews in Earth ScienceOct. 4, 2011 September 17, 1979 October 1, 2010 (NASA, 2011-1)

  2. Natural State of Stratospheric Ozone Ozone (O3) is very small part of atmosphere ~90% of ozone is in the stratosphere Protects life from solar UV radiation Inverse T profile in stratosphere Total ozone ranges from 200-500 DU UV radiation O3 ê O2 + O + heat

  3. Natural variation of stratospheric ozone • 1) Air Motions • Ozone changes with latitude • from stratospheric wind • patterns • Weather systems • 2) Chemical • 11-year solar cycle causes • 1-2% change in ozone • Volcanic eruptions deplete • ozone for a few years

  4. Anthropogenic Change (NASA, 2011-1)

  5. Montreal Protocol & Projections (U.N, n.d.)

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