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ozone can occur from natural variations in atmo- Antarctic Ozone Hole Lessens in 1988 spheric processes. A springtime "ozone hole" which has appeared in Other observations by NASA's Goddard Space Antarctica in recent years is considerably less deep Flight Center, Greenbelt, Maryland, show that the this season than it was last year, and even shallower Southern Hemisphere stratosphere exhibited more than in 1986, according to the National Oceanic and north to south winds in 1988 compared to 1987, Atmospheric Administration (NOAA). which probably dispersed the chemical compounds Measurements with balloon-borne instruments trapped inside the polar vortex before significant launched by NOAA personnel at the South Pole in chemical destruction of ozone could take place. early October 1988 show that the amount of ozone NASA scientists have been closely monitoring the in an air column above the site averaged more than total ozone levels over the Southern Hemisphere with 200 Dobson units, according to Walter Komhyr of the Total Ozone Mapping Spectrometer (TOMS), an the Commerce Department agency's Environmental instrument on board NASA's NIMBUS-7 satellite. Research Laboratories in Boulder, Colorado. Goddard scientists Arlin Krueger, Richard Stolarski, Average early October values in 1986 and 1987 and Mark Schoeberl reported that the
Bulletin of the American Meteorological Society – American Meteorological Society
Published: Jan 1, 1989
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