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Anna E. Jones
Tanya Bowden
, and
John Turner


A regular occurrence during the 1990s has been the excursion of the edge of the springtime Antarctic ozone hole over the southernmost region of the South American continent. Given the essential role of atmospheric ozone in absorbing incoming solar ultraviolet radiation, the populations in this area are thus exposed to much higher ultraviolet-B irradiance than is normal for this time of year. The authors report here on a simple technique that might be used to forecast these low ozone episodes, based upon data readily available on the World Meteorological Organization Global Telecommunications System. Using this technique, total ozone during October 1991 at Punta Arenas, Chile, is predicted with a root-mean-square error of 34.4 DU (12.8%) and a mean error of 14.8 DU (5.5%).

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