TOMS total ozone maps, 1979-82, 89-92

TOMS total ozone maps, 1979-82, 89-92

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This image is part of the sequence Environment: satellite maps of the ozone hole over the Antarctic from 1979-82 and 1989-92

Credit: NASA/SCIENCE PHOTO LIBRARY

Caption: Growth of the Antarctic ozone hole. Series of false-colour maps of total atmospheric ozone, comparing the distribution on 23 September for the years 1979-82 (l-r, top) with 1989-92 (l-r, bottom). The colours represent ozone concentration, from white (highest) through red, yellow, green and blue to purple (lowest). The maps of 1979-82 show ozone depletion (blue) over the Antarctic. The maps for 1989-92 show deeper and far more widespread depletion of ozone over the same region (purple), with the worst case being 1992. Ozone depletion has been linked to man-made chemicals such as CFCs. Data from the TOMS spectrometer on the Nimbus-7 satellite.

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Keywords: 1979-82 89-92, 1979-82 and 1989-92, atmosphere, comparis, comparison, earth science, earth's, false-coloured, map, ozone depletion, ozone hole, sciences, toms data, total ozone

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