Heterogeneous Reactions of NOx in the stratosphere.
Abstract
The potential role of heterogeneous reactions of oxides of nitrogen on the NOx (NO + NO2) balance in the stratosphere is examined. Particle concentrations in the upper atmosphere and laboratory data on heterogeneous reactions of NOx are used to estimate the magnitude of these reactions in ambient and pertubed stratospheres. Comparison of the projected heterogeneous rates with those for gas-phase reactions considered to be important suggests that the heterogeneous processes may compete with homogeneous processes for removal or chemical alteration of NOx in a stratosphere perturbed by a major volcanic eruption or a fleet of supersonic transports. The estimated lifetimes for heterogeneous removal of NOx in the latter environment compare favorably with those estimated for trace constituents in the upper atmosphere. These results suggest the importance of heterogeneous processes as one possible sink for NOx in the stratosphere.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 17, 1974
- Accession Number
- ADA004070
Entities
People
- Henry S. Judeikis
Organizations
- The Aerospace Corporation