Satellite map showing a severe depletion or "hole" in the ozone layer over Antarctica on October 3rd,1990. The hole is believed to be due to pollution of the atmosphere by chlorofluorocarbons used in aerosols & refrigerants. First observed in 1980,the most severe depletion was recorded in October 1987. This image represents the maximum depletion during the Antarctic spring of 1990. It appears here as the pink,purple & black areas covering Antarctica (outlined in white) & beyond. The scale of colours represents Dobson units,a measure of atmospheric ozone. The map was made by the Total Ozone Mapping Spectrometer (TOMS) on the American Nimbus-7 weather satellite | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NASA |
Bildgröße: | 3543 px × 2821 px |
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