POLINAT Luftverschmutzung durch Flugzeugemissionen im Nordatlantik-Flugkorridor (POLINAT-2)

Description: Ziel ist die Bestimmung des relativen Beitrages der Abgase aus dem Luftverkehr zur Zusammensetzung der unteren Stratosphaere und der oberen Troposphaere im Hoehenbereich zwischen 9 und 13 km im nordatlantischen Flugkorridor. Dazu werden Messungen der Verteilung von Stickoxiden, Schwefelverbindungen, Wasserdampf, Partikel durchgefuehrt.

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Origins: /Bund/UBA/UFORDAT

Tags: Ozon ? Flugzeugabgas ? Schadstoffgehalt ? Schwefeloxid ? Schwefelverbindung ? Oxid ? Wasserdampf ? Luftverschmutzung ? Aerosol ? Flugzeug ? Schadstoffemission ? Stickoxide ? Wash-Out ? Stratosphäre ? Messverfahren ? Abgas ? Schadstoffausbreitung ? Dispersion ? Emission ? Tropopause ? Troposphäre ? Luftverkehr ? Messdaten ? Ozonbildung ? Partikel ? Persistenz ? Schadstoffbildung ? Atmosphäre ? Schadstoffverhalten ? Verkehrsemission ? Atlantischer Ozean ? Emissionsanalyse ? Reaktionsprodukt ? Flugkorridor ? Large-Scale-Transport ? Abgaszusammensetzung ? Nordatlantik-Flugkorridor ?

Region: Bavaria

Bounding boxes: 11.5° .. 11.5° x 49° .. 49°

License: cc-by-nc-nd/4.0

Language: Deutsch

Organisations

• Bundesamt für Bildung und Wissenschaft (Finanzielle Förderung)
• Centre National de la Recherche Scientifique, Laboratoire de Meteorologie Dynamique (Mitwirkung)
• Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institut für Physik der Atmosphäre Oberpfaffenhofen (Projektverantwortung)
• Eidgenössische Technische Hochschule Zürich, Laboratorium für Atmosphärenphysik (Mitwirkung)
• Kommission der Europäischen Gemeinschaften Brüssel (Finanzielle Förderung)
• Koninklijk Nederlands Meteorologisch Instituut (Mitwirkung)
• Max-Planck-Institut für Kernphysik (Mitwirkung)
• Norwegian Institute for Air Research Kjeller (Mitwirkung)
• Umweltbundesamt (Bereitstellung)
• United Kingdom Atomic Energy Authority, National Environmental Technology Centre (Mitwirkung)
• University Oslo, Institute of Geophysics (Mitwirkung)
• Universität Bergen, Institut für Geophysik (Mitwirkung)

Time ranges: 1994-01-01 - 1998-03-31

Alternatives

• Language: Englisch/English
  Title: POLINAT Pollution From Aircraft Emissions in the North Atlantic Flight Corridor (POLINAT-2)
  Description: The overall objectives of the project are: 1. To determine by measurements and analysis the relative contribution from air traffic exhaust emissions to the composition of the lower stratosphere and upper troposphere at altitudes between 9 and 13 km within and near the flight corridor over the North Atlantic. 2. To assess the effects of air traffic emissions in that region in ralation to clean background concentrations and pollutant concentrations from various sources and to analyse their importance for changes in ozone, oxidizing capacity, aerosols and clouds. The main emphasis of this project in on the distribution of nitrogen oxides (NOx and NOy), sulphur compounds (SOx) water vapour (H2O), particles, and their effects on ozone, other reaction products, in the upper troposphere and lower stratosphere. Contrail formation aspects are also considered. The investigation will cover two scale regimes: the corridor cross-section with multiple plumes as resulting from dense air traffic at plume ages of several minutes to hours, and the scale of the flight corridor within the region of the North Atlantic at time scales of several hours to days. In particular, the project investigates the following questions: 1. Which is the north-south extent and how strong are the gradients delimiting the large scale corridor? Is there a mean gradient in the abundances of air species along the corridor? 2. To what height above the main flight corridor are air traffic emissions transported? What is the residence time of emissions at altitudes above the tropopause in view of stratosphere-troposphere exchange and strong vertical variations in tropopause altitude, tropopause folds, wave motions and small amounts of turbulence? 3. How large are the contributions from air traffic sources in relation to surface emissions? How important are synoptic scale motions in comparison to convective events? How important are washout, homogeneous and heterogeneous air chemistry during this upward transport? 4. How often is air at flight levels supersaturated with respect to the phase, i.e., how often is the atmosphere conditioned to form persistent and large-scale contrails? 5. What is the dispersion and chemical conversion in multiple plumes resulting from contributions of several aircraft flying through essentially the same air mass and what are the consequences for particle formation, air chemistry and contrail formation? 6. What are the consequences of the aircraft emissions of nitrogen and other trace substances on the formation of ozone and other chemicals in the troposphere and lower stratosphere? In addition the project seeks for possibilities to verify the performance of the instruments, to investigate fresh air traffic emissions and to investigate large scale transport, dispersion, chemical and aerosol changes in airmasses which have been freshly polluted by aircraft emissions on their way across the North Atlantic. https://ufordat.uba.de/UFORDAT/pages/PublicRedirect.aspx?TYP=PR&DSNR=50114

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