Federal Aviation Administration High Altitude Pollution Program, Second Biennial Report Prepared in Accordance with the Ozone Protection Provision, Section 153(g), of the Clean Air Act Amendments of 1977.
Abstract
This report was prepared in accordance with the Stratospheric Ozone Protection provisions of Public Law 95-95, the Clean Air Act Amendments of 1977. The impact of high altitude aviation on stratospheric ozone is now believed to be an increase in total columnar ozone for flights up to 20 km (about 66,000 feet). This result has been brought about through improvements in one-dimensional chemical kinetics-transport model of the stratosphere. They show that aircraft-injected pollutants (primarily nitrogen oxides) generate ozone through simplified 'smog' mechanisms in the upper troposhere and lower stratosphere while depleting it through the classic catalytic destruction mechanism at higher altitudes. The net result at present is a slight overall ozone increase. The uncertainty in the present model calculations, however, is unknown. The effort of the High Altitude Pollution Program of the Federal Aviation Administration is aimed at identifying and resolving the uncertainties so that a 'consensus' method or methods can be obtained for future assessments of the impacts of high altitude aviation on the environment.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1979
- Accession Number
- ADA081520
Entities
People
- Jonathan Rogers
- N. Sundararaman
- William Smith
Organizations
- Federal Aviation Administration