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Aviation and the Global Atmosphere

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<strong>Aviation</strong> <strong>and</strong> <strong>the</strong> <strong>Global</strong> <strong>Atmosphere</strong><br />

<strong>Aviation</strong> <strong>and</strong> <strong>the</strong> <strong>Global</strong> <strong>Atmosphere</strong><br />

Table of contents | Previous page | Next page<br />

5. Solar Ultraviolet Irradiance at <strong>the</strong> Ground<br />

Executive Summary<br />

5.1. Factors that Determine Ground-Level Ultraviolet Irradiance<br />

5.2. Comparison of Measured <strong>and</strong> Calculated Variabilities in UV Irradiance<br />

5.3. Detectability of Changes in Ground-Level Irradiance<br />

5.4. Calculated Impact of <strong>Aviation</strong> on UV at <strong>the</strong> Surface of <strong>the</strong> Earth<br />

5.4.1. Methodology for Treating Changes in Atmospheric Ozone<br />

5.4.1.1. Ozone Columns <strong>and</strong> Profiles<br />

5.4.1.2. Method for Referring Calculated Changes to 1970<br />

5.4.2. Results<br />

5.4.2.1. Ozone Column Changes<br />

5.4.2.2. Calculated Changes in Ozone Compared to Changes in UV<br />

5.4.2.3. Treatment of Uncertainties in Ozone Change <strong>and</strong> UVery Change Calculations<br />

5.4.2.4. Contribution of Persistent Contrails, Cirrus Clouds, <strong>and</strong> Aerosols to <strong>the</strong> Impact of <strong>Aviation</strong> on UV<br />

http://www.ipcc.ch/ipccreports/sres/aviation/054.htm (1 von 2)08.05.2008 02:40:59<br />

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