Ozone peaks at spring equinox


  • Anonymous


Scientists from the University of Colorado, Boulder, and the National Oceanic and Atmospheric Administration (NOAA) have discovered that the density of ozone in the upper mesosphere triples each year at the spring equinox. The scientists used data from the National Aeronautics and Space Administration's Solar Mesosphere Explorer (SME) satellite operated by the university.

According to authors R. J. Thomas, C. A. Barth, and S. Solomon, who reported their findings in the July 1984 Geophysical Research Letters, “Large seasonal changes occur, particularly near 80 km where ozone densities at the equinoxes are about 2–3 times those observed at the solstices… Further, the variations are highly repeatable from year to year and from hemisphere to hemisphere.”