Antarctic Ozone Hole: Toms Comparison 1986-89
by Science Photo Library
Title
Antarctic Ozone Hole: Toms Comparison 1986-89
Artist
Science Photo Library
Medium
Photograph - Photograph
Description
Series of satellite maps comparing the severe depletion or hole" in the ozone layer over Antarctica on each 5th October in the period 1986- 89. First observed in 1980, the hole is believed to be due to pollution of the atmosphere by chlorofluorocarbons (CFCs) used in aerosols & refrigerants. The colour scale at right shows total ozone values (in Dobson Units) - missing data appears white. The hole appears in shades of blue, violet & pink, with Antarctica outlined in black. Similarities exist between the odd- & even- numbered years. The map was made by the Total Ozone Mapping Spectrometer (TOMS) on the American Nimbus-7 weather satellite."
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September 25th, 2018
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