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OZONE IN THE STRATOSPHERE.

[In Dutch. / En néerlandais.]

Author(s) : KELDER H.

Type of article: Article

Summary

OZONE IN THE ATMOSPHERE IS CONFINED FOR ABOUT 90% TO THE STRATOSPHERE, WITH THE MAXIMUM MOLECULAR CONCENTRATION OCCURRING NEAR 22 KM AND THE MAXIMUM MIXING RATIO NEAR 35 KM. OZONE, BY ITS ABSORPTION OF SOLAR RADIATION OF WAVE-LENGTHS LESS THAN 300 NANOMETERS, PROVIDES THE HEAT SOURCE THAT IS RESPONSIBLE FOR THE INCREASE OF TEMPERATURE BETWEEN THE TROPOPAUSE AND THE STRATOPAUSE. THE ABSORPTION OF THIS HARMFUL ULTRAVIOLET RADIATION IS ESSENTIAL. CHAPMAN (1930) FORMULATED THE FIRST PLAUSIBLE MODEL FOR THE OZONE LAYER. HIS MECHANISM BEGINS WITH THE PHOTOLYSIS OF O2 BY ULTRAVIOLET RADIATION FOR WAVELENGTHS LESS THAN 250 NANOMETERS. HE PROPOSED THE DESTRUCTION OF OZONE THROUGH THE REACTION WITH ATOMIC OXYGEN. IT IS BY NOW KNOWN THAT MUCH MORE REACTIONS PLAY A ROLE.

Details

  • Original title: [In Dutch. / En nĂ©erlandais.]
  • Record ID : 1989-1281
  • Languages: Dutch
  • Source: Koeltech. Klim. - vol. 81 - n. 10
  • Publication date: 1988
  • Document available for consultation in the library of the IIR headquarters only.

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