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Antarctic Ozone from TOMS: July 15, 2001 to October 9, 2001

(Complete Item Description)

Abstract:: Satellite data show the area of this years Antarctic ozone hole peaked at about 26 million square kilometers -- roughly the size of North America -- making the hole similar in size to those of the past three years, according to scientists from NASA and the National Oceanic and Atmospheric Administration (NOAA). Researchers have observed a leveling-off of the hole size and predict a slow recovery.

Subject:: Science and Technology
Grade Level:: Secondary, Post-secondary
Collection:: NASA GSFC Scientific Visualization Studio

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TOMS Ozone at the South Pole: August 1, 2000 to October 2, 2000

(Complete Item Description)

Abstract:: The year 2000s Antarctic ozone hole is the largest ever observed. Scientists continue to investigate the phenomenon, and are somewhat surprised by its scale. Using data from NASAs Total Ozone Mapping Spectrometer (TOMS) instrument onboard the Earth Probe satellite, researchers can evaluate and compare current conditions over the south pole to readings taken by other instruments in years past. Continued monitoring of polar ozone levels helps researchers gain a better understanding of how the planets climate may be changing. This animation shows a huge section of the atmosphere around the south pole thats comparatively devoid of ozone. The gap reached a record size of 28.3 million kilometers squared on September 3, 2000. The previous record was 27.2 million square kilometers squared recorded on Sept. 19, 1998. Although current measurements of the ozone hole show that it has stabilized, low value points in the interior continue to decline. The lowest values are typically observed in the late September or early October.

Subject:: Science and Technology
Grade Level:: Secondary, Post-secondary
Collection:: NASA GSFC Scientific Visualization Studio

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