Map of Antarctic ozone hole on 6 October 1991

Map of Antarctic ozone hole on 6 October 1991

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Credit: JOHN WELLS/SCIENCE PHOTO LIBRARY

Caption: False-colour map of the "ozone hole" over the Antarctic (white) on 6 October 1991. Based on data gathered by the Nimbus-7 satellite, the map shows the most severe depletion in the ozone layer over the Antarctic (white) up to that date. The ozone hole first appeared over the Antarctic in 1978. In the picture, the hole is seen as a transparent "window" surrounded by dark blue contour areas which represent increasing concentrations of ozone. The region of depleted ozone extends over the southern tip of South America at the top of the picture. Also visible (in green) are southern Africa, Australia & New Zealand.

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Keywords: antarctic, atmosphere, earth science, earth's, ozone hole, sciences

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