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Latest Atmospheric Chemistry Observational Databases Stories

2014-01-17 12:20:36

WASHINGTON, Jan. 17, 2014 /PRNewswire-USNewswire/ -- NASA's uncrewed Global Hawk research aircraft is in the western Pacific region on a mission to track changes in the upper atmosphere and help researchers understand how these changes affect Earth's climate. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) Deployed from NASA's Dryden Flight Research Center in Edwards, Calif., the Global Hawk landed at Andersen Air Force Base in Guam Thursday at approximately 5 p.m....

Climate Change Clues Could Come From The Stratosphere
2013-01-10 09:57:10

redOrbit Staff & Wire Reports - Your Universe Online NASA has announced plans to send an unmanned, remotely-controlled research vehicle into the upper atmosphere in order to find out what impact climate change is having on our planet. The program, which has been christened the Airborne Tropical Tropopause Experiment (ATTREX), will utilize instruments on board a long-range Global Hawk aircraft to collect measurements above the tropical Pacific Ocean, the US space agency explained....

2012-02-13 22:54:36

Recent cuts to the scientific workforce of Environment Canada, a government agency responsible for meteorological services and environmental research, threaten scientific research related to the ozone layer in the upper atmosphere and pollution in the lower atmosphere, according to environmental scientists in the U.S. These reductions in personnel and projected budget cuts also threaten existing international agreements. "Canada is a bellwether for environmental change, not only for Arctic...

North America Safe From Impact Of Satellite
2011-09-23 09:32:11

  NASA said on Friday that its Upper Atmosphere Research Satellite (UARS) will most likely miss North America. Scientists have still not pinpointed exactly where the 13,000-pound satellite is going to end up. The space agency said the odds of a piece of debris striking a person are about 1-in-3,200.  Scientists predict 26 pieces of debris will survive Earth's atmosphere, weighing a total of 1,100 pounds. UARS will re-enter Earth's atmosphere sometime Friday afternoon,...

Satellite Debris Expected To Hit Earth Sept. 23
2011-09-18 04:15:55

  A 20-year-old defunct satellite is expected to fall to Earth sometime next week, NASA officials announced on Friday. According to the Associated Press (AP), the U.S. space agency now predicts that the nearly seven-ton Upper Atmosphere Research Satellite (UARS) will re-enter Earth's atmosphere on September 23, plus or minus one day. "NASA scientists have calculated the satellite will break into 26 pieces as it gets closer to Earth," the AP said. "The odds of it hitting someone...

NASA Prepares For Satellite Re-entry
2011-09-08 07:59:41

  NASA on Wednesday said that a 20-year-old satellite is due to re-enter Earth´s atmosphere sometime in the next six weeks, burn up, and rain debris over a wide area. The defunct 7-ton Upper Atmosphere Research Satellite (UARS) should plunge to Earth sometime in late September or early October, but the agency cannot determine exactly when that re-entry will occur and what geographic area may be affected. However, NASA is keeping a close eye on the satellite and will keep the...

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2011-04-05 11:05:00

In the spring of 2011, the ozone layer that protects us from harmful levels of ultraviolet rays has shown a record loss in the Arctic region, according to the U.N. weather agency. The continued presence of ozone-depleting substances in the atmosphere coupled with a very cold winter in the stratosphere is to blame. Although an international agreement from 1987 called the Montreal Protocol has successfully reduced the production and consumption of these ozone destroying chemicals, the long...

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2010-07-23 09:07:35

KIT Scientists Disprove Doubts in Ozone Hole Chemistry For the first time, KIT scientists have successfully measured in the ozone layer the chlorine compound ClOOCl which plays an important role in stratospheric ozone depletion. The doubts in the established models of polar ozone chemistry expressed by American researchers based on laboratory measurements are disproved by these new atmospheric observations. The established role played by chlorine compounds in atmospheric ozone chemistry is in...

2009-09-21 09:49:05

By merging more than a decade of atmospheric data from European satellites, scientists have compiled a homogeneous long-term ozone record that allows them to monitor total ozone trends on a global scale "“ and the findings look promising. Scientists merged monthly total ozone data derived from the vertically downward-looking measurements of the GOME instrument on ESA's ERS-2 satellite, SCIAMACHY on ESA's Envisat and GOME-2 on the European Meteorological Satellite Organization's...

2009-07-16 14:03:07

The U.S. space agency's Aura spacecraft began its sixth year of research this week, studying Earth's ozone layer, air quality and climate. The satellite, launched July 15, 2004, from California's Vandenberg Air Force Base, has transmitted data that is helping scientists address global climate change issues such as global warming; the distribution and chemistry of polluted air, and ozone depletion in the Earth's stratosphere, space agency scientists said. NASA's Goddard Space Flight Center in...