Potential impact on atmospheric ozone and temperature of increasing trace gas concentrations
Technical Report
·
OSTI ID:6741600
The response of the atmosphere to emissions of chlorofluorocarbons (CFCs) and other chlorocarbons, and to increasing concentrations of other radiatively active trace gases such as CO/sub 2/, CH/sub 4/, and N/sub 2/O is calculated by a coupled chemical-radiative transport one-dimensional model. It is shown that significant reductions in the ozone concentration and in the temperature are expected in the upper stratosphere as a result of increasing concentrations of active chlorine produced by photodecomposition of the CFCs. The ozone content is expected to increase in the troposphere, as a consequence of increasing concentrations of methane and nitrogen oxides. Due to enhanced greenhouse effects, the Earth's surface should warm up by several degrees. The amplitude and even the sign of future changes in the ozone column are difficult to predict as they are strongly scenario-dependent. An early detection system to prevent noticeable ozone changes as a result of increasing concentrations of source gases should thus be based on a continuous monitoring of the ozone amount in the upper stratosphere rather than on measurements of the ozone column only. Measurements of NOx, Clx, and HOx are also required for unambiguous trend detection and interpretation.
- Research Organization:
- Institut d'Aeronomie Spatiale de Belgique, Brussels
- OSTI ID:
- 6741600
- Report Number(s):
- N-88-24112; NASA-CR-182965; NAS-1.26:182965; AERONOMICA-ACTA-A-322-1987; ETN-88-92484
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ALKANES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
DATA
EARTH ATMOSPHERE
ENVIRONMENTAL EFFECTS
GREENHOUSE EFFECT
HYDROCARBONS
INFORMATION
LAYERS
MATHEMATICAL MODELS
METHANE
NITROGEN COMPOUNDS
NITROGEN OXIDES
NITROUS OXIDE
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE LAYER
THEORETICAL DATA
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ALKANES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
DATA
EARTH ATMOSPHERE
ENVIRONMENTAL EFFECTS
GREENHOUSE EFFECT
HYDROCARBONS
INFORMATION
LAYERS
MATHEMATICAL MODELS
METHANE
NITROGEN COMPOUNDS
NITROGEN OXIDES
NITROUS OXIDE
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE LAYER
THEORETICAL DATA