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 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Coloured By John Wells / NASA |
Taille de l’image : | 4106 px × 4276 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |