August 31, 2005
Sandia National Laboratories
In a study to be published this week in the journal Nature, scientists from the Australian Antarctic Division, the University of Western Ontario, the Aerospace Corporation, and Sandia and Los Alamos national laboratories found evidence that dust from an asteroid burning up as it descended through Earth's atmosphere formed a cloud of micron-sized particles significant enough to influence local weather in Antarctica.
The asteroid's dust trail as seen by lidar at Davis, Antarctica. The plot shows the strength of the vertical laser light scattered back from the atmosphere as a function of time and altitude above mean sea level. The dust trail, blown by the stratospheric winds, moved through the beam.
Credit: Image courtesy of Sandia National Laboratories
ALBUQUERQUE, N.M. - Dust from asteroids entering the atmosphere may influence Earth's weather more than previously believed, researchers have found.
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Sandia National Laboratories. "Asteroid Dust May Influence Weather, Study Finds." ScienceDaily. ScienceDaily, 31 August 2005. <www.sciencedaily.com/releases/2005/08/050826074736.htm>.
Sandia National Laboratories. (2005, August 31). Asteroid Dust May Influence Weather, Study Finds. ScienceDaily. Retrieved March 7, 2014 from www.sciencedaily.com/releases/2005/08/050826074736.htm
Sandia National Laboratories. "Asteroid Dust May Influence Weather, Study Finds." ScienceDaily. www.sciencedaily.com/releases/2005/08/050826074736.htm (accessed March 7, 2014).