Total ozone map, south polar plot, 6 October 1993

Total ozone map, south polar plot, 6 October 1993

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Caption: Antarctic ozone depletion in 1993. Map of total atmospheric ozone concentration in the southern hemisphere on 6 October 1993. The colours represent the ozone concentration in Dobson Units (DU). The large, oval-shaped blue, pink and white area is the 'ozone hole' over the Antarctic, where ozone readings were below 250 DU. The depletion in 1993 was the worst to that date; the centre of the 'hole' recorded less than 100 DU, a decrease of at least 150 DU (60%) compared with pre-1975 values. The map shows Antarctica and other land areas outlined in black. The data were gathered by the Total Ozone Mapping Spectrometer (TOMS) instrument on the Russian Meteor-3 satellite.

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Keywords: 1993, atmosphere, earth science, earth's, map, ozone depletion, ozone hole, sciences

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