ozone is concentrated in the so-called ozone layer. The atmosphere's
ozone layer plays a very important role in protecting life on earth
from potentially harmful UV rays, and it also helps shape the earth's
climate. However, gasses resulting from human activity such as chlorofluorocarbons
(CFCs) are believed to deplete the ozone layer.
The discovery of a
hole in the ozone layer which occurs each spring over Antarctica
focused the world's attention on the importance of the ozone layer
and stirred the global community into action.
Governments committed themselves to protecting the ozone layer and
better understanding atmospheric processes.
Only satellites can
measure ozone on a global scale, so they are essential for ozone
studies. Satellite ozone data are mainly used for monitoring the
global and vertical distribution of ozone, and are a valuable tool
for policy makers who need to take appropriate measures to protect
the ozone layer.