Global dispersal in the atmosphere of 'inert' gases from surface sources
Abstract
A model of mean zonal and mean annual atmospheric transport to the 35-km level is used to compute the mean zonal concentration of tropospherically inert gases from anthropogenic surface sources with an exponentially increasing intensity. The computed concentrations of krypton-85, Freon-11 (CFC13), and Freon-12 (CF2C12) are compared with published results of measurements in air adjacent to water (far from local sources of the gases) as well as with aircraft and balloon measurements in the free atmosphere. Parameters of source intensity are discussed along with the role of orderly transport of the gases to the Southern Hemisphere. The intensity of the stratospheric source of atomic chlorine involving photodissociation of the Freons by UV radiation is determined. Total concentrations of the investigated gases are predicted for the year 1980.
- Publication:
-
Akademiia Nauk SSSR Fizika Atmosfery i Okeana
- Pub Date:
- August 1976
- Bibcode:
- 1976FizAO..12..787K
- Keywords:
-
- Atmospheric Composition;
- Freon;
- Global Air Pollution;
- Krypton 85;
- Pollution Monitoring;
- Stratosphere Radiation;
- Trace Contaminants;
- Chlorine;
- Diffusion Coefficient;
- Photodissociation;
- Southern Hemisphere;
- Transport Theory;
- Troposphere;
- Ultraviolet Radiation;
- Vertical Distribution;
- Geophysics