Stratospheric ozone layer
Capa de ozono estratosférico
- Date
- 1913 / 1930 · confidence high
- Place
- Paris, France (Fabry and Buisson) / Oxford, United Kingdom (Dobson, Chapman)
- Credited to
- Charles Fabry and Henri Buisson (1913), Gordon Dobson (spectrophotometer, 1924), Sydney Chapman (mechanism, 1930)
- People
- 👤 Charles Fabry1867–1945👤 G.M.B. Dobson1889–1976👤 Henri Buisson1873–1944👤 Sydney Chapman1888–1970
- Field
- Cosmos & Earth
What was discovered
Fabry and Buisson explained the cut-off of the solar ultraviolet spectrum by a layer of ozone in the upper atmosphere; Dobson measured it systematically and Chapman proposed the photochemical cycle that forms and destroys it. It protects life from UV-B.
Coordinates of Paris, where Fabry and Buisson made the spectroscopic measurements.
What it led to
- Worldwide network of Dobson spectrophotometers
- Discovery of the ozone hole
- Atmospheric chemistry (Crutzen, Molina, Rowland)
Built on
- Discovery of ozone (Schönbein, 1839)
- Hartley's UV spectroscopy (1881)
Made possible
- Brewer-Dobson circulation1949-1963
- Dobson spectrophotometer
- Dobson unit