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segunda-feira, 12 de dezembro de 2016

Antarctic Ozone Hole







Publicado em 19 de set de 2014
The Antarctic Ozone Hole is an annual springtime event above Earth's frozen, southernmost continent. Man-made CFCs, naturally occurring Polar Stratospheric Clouds, and the return of sunlight set off incredible destruction of the protective Ozone Layer. This video presents these complicated processes with simple to understand animations.


Credits:
- Video, Animations, and Narration by Patrick Cullis - CIRES contractor for the Ozone and Water Vapor Group in NOAA's Global Monitoring Division. esrl.noaa.gov/gmd
- Antarctica Photography by Patrick Cullis - pcullyphoto.com
- Satellite Imagery from NASA's Ozone Watch - ozonewatch.gsfc.nasa.gov
- Chlorofluorocarbons (CFCs) by James W. Elkins of NOAA's Global Monitoring Division - esrl.noaa.gov/gmd/hats/publictn/elkins/cfcs.html
- Historical Worldwide CFC Production - AFEAS - afeas.org

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