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| | NASA Data Reveals 'Average' Ozone Hole in 2007
Each year, the depleted region in Earth's protective ozone layer over the Antarctic, or "ozone hole," reaches its largest size during a period in September. Data from a NASA satellite are now in, and images created from the data reveal the extent of the hole in 2007 was about average when compared to measurements from the last few decades.
Data from NASA's Earth-observing Aura satellite show that the ozone hole peaked in size on Sept. 13, reaching a maximum area extent of 9.7 million square miles – just larger than the size of North America. That's "pretty average," says Paul Newman, an atmospheric scientist at NASA Goddard Space Fight Center, when compared to the area of ozone holes measured over the last 15 years. Still, the extent this year was "very big," he says, compared to 1970s when the hole did not yet exist. + Read more
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| NASA Data Reveals 'Average' Ozone Hole in 2007
NASA data reveal the extent of the hole in 2007 was about average when compared to measurements from the last few decades.
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| NASA Keeps Eye on Ozone Layer Amid Montreal Protocol’s Success
NASA scientists will join researchers from around the world to celebrate the 20th anniversary of the Montreal Protocol.
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| NASA Ozone Instrument Laid to Rest After 30 Years
During its almost 30-year lifespan, the Total Ozone Mapping Spectrometer (TOMS) program established the extent of the "ozone hole."
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| NASA Airborne Expedition Chases Climate, Ozone Questions
NASA's TC4 field campaign will begin this summer in San Jose, Costa Rica, with an investigation into how chemical compounds in the air affect cloud formation and climate.
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| Ozone Hole is a Double Record Breaker
NASA and NOAA scientists report 2006's ozone hole has broken records for area and depth.
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| Plants Become Air Quality Detectives at Goddard Visitor Center
The new Aura Ozone Monitoring Garden is used to study air quality from the ground by seeing how ozone in the air damages the leaves of certain plants.
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| NASA's Aura: New Eye for Clean Air
The instruments onboard Aura will help scientists monitor pollution production and transport around the world.
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| Ozone Levels Drop When Hurricanes Are Strengthening
NASA-funded scientists recently found that ozone levels drop as a hurricane is intensifying.
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| NASA Mission Link
Aura:Atmospheric Chemistry
+ View site
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