H. Grassl

The importance of contrails in the upper troposphere and of additional water vapour in the lower stratosphere, both the result of aircraft emissions, for the radiation budget of the surface / atmosphere system is assessed. The radiation flux density profiles with contrails and additional water vapour are compared to other greenhouse gas forcings. This leads to a very first order of magnitude estimate of the air traffic climate fo rcing potential: two percent contrail cover may be as important for the planetary radiation budget as a 10 percent increase of present C02 forcing equivalent to six years emissions of 25 Gigatons C02 per year; water vapour increase in the high northern latitude stratosphere is contributing to the anthropogenic greenhouse effect.

Eurpean Propulsion Forum, 1990, Köln

Conference Paper

englisch

21,0 x 29,7 cm, 5 Seiten

DGLR-Bericht, 1990, 1990-01, Eurpean Propulsion Forum: Future Civil Engines and the Protection of the Atmosphere - Proceedings; S.43-47; 1990; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

Bestellbar

1990