Artwork showing hole in ozone layer
Numéro d’image : 11736289
| Artwork showing the severe depletion or "hole" in the ozone layer over Antarctica (white landmass). The ozone layer absorbs most of the Sun's ultra- violet (UV) radiation; it occurs at an altitude of 14-24km,but is most concentrated at 17-21km (shown in white). The hole lets through the UV (purple). Altitudes are given by a Boeing 727 (12km),a Concorde (15km),& the ER-2 research plane (18km) used by NASA to investigate the hole. The hole first appeared in 1980,& has grown more severe each year. It is a seasonal phenomenon that occurs in the Antarctic spring. It is probably due to atmospheric pollution by chlorofluorocarbons (CFCs),chemicals used in aerosols & refrigerants. This is the version WITH the lettering naming the three aircraft. Version without lettering is | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Gilbert, Michael |
| Taille de l’image : | 3498 px × 4995 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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