Atmospheric carbon dioxide and chlorofluoromethanes - Combined effects on stratospheric ozone, temperature, and surface temperature

Details Atmospheric carbon dioxide and chlorofluoromethanes - Combined effects on stratospheric ozone, temperature, and surface temperature Atmospheric carbon dioxide and chlorofluoromethanes - Combined effects on stratospheric ozone, temperature, and surface temperature

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981georl...8..587c&link_type=abstract

Geophysical Research Letters, vol. 8, June 1981, p. 587-590.

Physics

8

Atmospheric Chemistry, Carbon Dioxide Concentration, Chlorofluoromethane, Fluorohydrocarbons, Methane, Ozone, Stratosphere, Atmospheric Composition, Atmospheric Temperature, Chemical Effects, Chlorocarbons, Steady State, Surface Temperature, Troposphere, Water Vapor

Scientific paper

The effects of combined CO2 and CFCl3 and CF2Cl2 time-dependent scenarios on atmospheric O3 and temperature are described; the steady-state levels of O3 and surface temperature, to which the chlorofluoromethane scenario tends in the presence of twice and four time ambient CO2, are examined; and surface temperature changes, caused by the combined effects, are established. A description of the model and of the experiments is presented. Results indicate that (1) the total ozone time history is significantly different from that due to the chlorofluoromethane alone; (2) a local ozone minimum occurs in the upper stratosphere about 45 years from the present with a subsequent ozone increase, then decline; and (3) steady-state solutions indicate that tropospheric temperature and water vapor increases, associated with increased infrared opacity, cause significant changes in tropospheric ozone levels for 2 x CO2 and 4 x CO2, without the addition of chlorofluoromethanes.

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