The Ozone Layer

THE OZONE LAYER

Called ozone, or ozone layer, the area 

HIGH1 relatively ozone. This layer, which extends 

approximately 15 km to 40 km altitude, 

meets 90% of ozone in the atmosphere absorbs 

97% to 99% of high ultraviolet radiation 

frequency. 

The ozone layer was discovered in 1913 by physicists           

French Charles Fabry and Henri Buisson. Properties 

were examined in detail by the British meteorologist 

G.M.B. Dobson, who developed a simple 

spectrophotometer that could be used to measure ozone 

Stratospheric from the ground. Between 1928 

and 1958 Dobson established a worldwide network of stations 

monitoring of ozone, which continue to operate in 

today. Dobson Unit, a unit of measurement 

the amount of ozone, was named in his honor.

Earth's stratosphere that contains a concentration