2008 EARTH SCIENCE VIDEOTAPES |
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Tape Title | Record ID | Date Produced | TRT: |
Synopsis |
| ANTARCTIC OZONE HOLE REACHES 2008 MAXIMUM
720p/59.94 | G08-HD149 | 10/23/08 | 7:48 | Scientists from NASA and the National Oceanic and Atmospheric Administration report that the Antarctic ozone hole reached its annual maximum on Sept. 12, 2008, stretching over 10.5 million square miles.
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TAPE CONTENTS: |
| ITEM (1): Antarctic Ozone Hole: Annual Maximum Thinning (1979-2008): - Each year the Antarctic ozone hole opens up in mid-August and peaks in late September or early October. This animation shows the annual maximum thinning of ozone during this period of peak activity during 1979-2008.
Courtesy: NASA
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| ITEM (2): Aura - NASA's Tool for Measuring the Ozone Layer: - In addition to sub-orbital measurements, NASA monitors stratospheric ozone with state-of-the-art satellite technology. Launched in 2004, the Aura satellite uses four instruments - most notably the Ozone Monitoring Instrument - to examine the atmosphere. Aura is part of NASA's Earth Observing fleet of spacecraft.
Courtesy: NASA
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| ITEM (3): Chemistry Animations: Ozone Formation and Destruction: - Intense ultraviolet radiation in the upper atmosphere produces ozone. The radiation breaks typical oxygen molecules into free oxygen atoms. Ozone is created when a free oxygen atom joins with an oxygen molecule to form a molecule of ozone. Chemical reactions involving such familiar compounds as chlorine, bromine, nitrogen, and hydrogen can destroy ozone. These animations illustrate the chemistry behind formation and destruction of ozone.
Courtesy: NASA
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| ITEM (4): Perspectives on the Ozone Hole: - Using NASA's data visualization technology, we can examine the Antarctic ozone hole from a variety of perspectives. The following visualizations show a couple of unique views of the ozone hole event.
Courtesy: NASA
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| ITEM (5): Interview with Paul Newman
- Interview with Paul Newman, atmospheric scientist at NASA's Goddard Space Flight Center. Dr. Newman explains how the ozone hole begins to disperse this time of year, affecting human health and aquatic life.
Courtesy: NASA
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