Satellite map of Antarctic ozone hole, 5/10/89

Satellite map of Antarctic ozone hole, 5/10/89

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Credit: NASA, COLOURED BY JOHN WELLS/SCIENCE PHOTO LIBRARY

Caption: Satellite map showing a severe depletion or "hole" in the ozone layer over Antarctica on October 5th, 1989. The hole is probably due to pollution of the atmosphere by chlorofluorocarbons used in aerosols & refrigerants. First observed in 1980, the hole reaches a maximum in October, in Antarctic spring. It is seen here as the regions in shades of pink, yellow & light blue covering Antarctica (outlined in black) & a little beyond. The colours represent Dobson units, a measure of atmospheric ozone. The map was made by the Total Ozone Mapping Spectrometer (TOMS) on the American Nimbus-7 satellite, & coloured at Science Photo Library.

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Keywords: antarctic, atmosphere, earth science, earth's, hole, in ozone layer, nimbus 7 imagery, ozone, ozone depletion, ozone hole, pollution, sciences

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