Description: Das Projekt "Der Einfluss von NOx-Emissionen des Flugzeugs auf die Atmosphaere bei Flughoehen von 8-15 km (AERONOX)" wird vom Umweltbundesamt gefördert und von Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institut für Physik der Atmosphäre Oberpfaffenhofen durchgeführt. The AERONOX project investigated the emissions of nitrogen (NOx) from aircraft engines and global air traffic at cruising altitudes, the resultant increase in Nox concentrations, and the effects on the composition of the atmosphere, in particular with respect to ozone formation in the upper troposphere and lower stratosphere. The project was structured into three subprojects: Engine exhaust emissions, physics and chemistry in the aircraft wake, and global atmospheric model simulations. A complementary program of work by aviation experts has provided detailed information on air traffic data which was combined with data on aircraft performance and emissions to produce a global emissions inventory. The work resulted in improved predictive equations to determine Nox emission measurements on two engines in cruise conditions. This information was combined with a traffic database to provide a new global Nox emissions inventory. It was found that only minor chemical changes occur during the vortex regime of the emission plume; however this result does not exclude the possibility of further changes in the dispersion phase. A variety of global models was set up to investigate the changes in NOx concentrations and photochemistry. Although aviation contributes only a small proportion (about 3 per cent) of the total global NOx from the anthropogenic sorces, the models show that aviation contributes a large fraction to the concentrations of NOx in the upper troposphere, in particular north of 30 N.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Stickstoffgehalt ? NOx-Emission ? Photochemie ? Schadstoffwirkung ? Emissionsinventar ? Stickstoffemission ? Flugmotor ? Emissionsdaten ? Flugzeug ? Kind ? Schadstoffemission ? Stickoxide ? Atmosphärische Wissenschaften ? Globaler Luftverkehr ? Abgasemission ? Atmosphärenmodell ? Chemikalien ? Daten ? Dispersion ? Globalmodell ? Luftfahrzeug ? Luftverkehr ? Stratosphäre ? Troposphäre ? Verkehrsstatistik ? Modellierung ? Ozonbildung ? Effektkonzentration ? Globale Emission ? Raumfahrt ? Verkehrsemission ? Atmosphäre ? Verkehr ? Luftfahrt ? Datenbank ? Atmosphärenchemie ? Konzentrationsmessung ?
Region: Bayern
Bounding box: 12.53381° .. 12.53381° x 47.795° .. 47.795°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1992-08-01 - 1994-07-31
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