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Quantifying the contributions of individual NOx sources to the trend in ozone radiative forcing

Dahlmann, Katrin und Grewe , Volker und Ponater, Michael und Matthes, Sigrun (2011) Quantifying the contributions of individual NOx sources to the trend in ozone radiative forcing. Atmospheric Environment, 45 (17), Seiten 2860-2868. DOI: 10.1016/j.atmosenv.2011.02.071.

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Offizielle URL: http://www.sciencedirect.com/science/journal/13522310

Kurzfassung

Source attribution of ozone radiative forcing (RF) is a prerequisite for developing adequate emission mitigation strategies with regards to climate impact. Decadal means of ozone fields from transient climate-chemistry simulations (1960-2019) are analysed and the temporal development of ozone RF resulting from individual NOx sources, e.g. road traffic, industry and air traffic, is investigated. We calculated an ozone production efficiency which is mainly dependent on the altitude of NOx emission and on the amount of background NOx with values varying over one order of magnitude. Air traffic and lightning are identified as NOx sources with a two and five times higher ozone production efficiency, respectively, than ground based sources. Second, radiative efficiency of source attributed ozone (i.e. total induced radiative flux change per column ozone) shows clear dependence on latitudinal structure of the ozone anomaly and, to a lesser extent, to its altitude. Lightning induced ozone shows the highest radiative efficiency because lightning primarily enhances ozone in low latitudes in the mid-troposphere (higher altitudes). Superimposed on these effects, a saturation effect causes a decreasing radiative efficiency with increasing background ozone concentrations. Changes in RF attributed to NOx induced ozone from 1960 to 2019 are controlled by three factors: changes in emissions, changes in ozone production efficiency and changes in the radiative efficiency. Leading effect is emission increase, but changes in ozone production efficiency increase ozone RF by a factor of three for air traffic, or reduce ozone RF by around 30% for ships. Additionally, changes in the radiative efficiency due to saturation effects change ozone RF by 2-5%.

Dokumentart:Zeitschriftenbeitrag
Titel:Quantifying the contributions of individual NOx sources to the trend in ozone radiative forcing
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Dahlmann, KatrinNICHT SPEZIFIZIERT
Grewe , VolkerNICHT SPEZIFIZIERT
Ponater, MichaelNICHT SPEZIFIZIERT
Matthes, SigrunNICHT SPEZIFIZIERT
Datum:Juni 2011
Erschienen in:Atmospheric Environment
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:45
DOI :10.1016/j.atmosenv.2011.02.071
Seitenbereich:Seiten 2860-2868
Status:veröffentlicht
Stichwörter:Emission sectors Road transport Radiative efficiency Ozone production efficiency Air traffic Climate impact
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr, Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt, Verkehr
HGF - Programmthema:ATM und Flugbetrieb, Verkehrssystem
DLR - Schwerpunkt:Luftfahrt, Verkehr
DLR - Forschungsgebiet:L AO - Luftverkehrsmanagement und Flugbetrieb, V VS - Verkehrssystem
DLR - Teilgebiet (Projekt, Vorhaben):L - Klima, Wetter und Umwelt, V - Verkehrsentwicklung und Umwelt (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Dynamik der Atmosphäre
Hinterlegt von: Katrin Dahlmann
Hinterlegt am:09 Mai 2011 10:41
Letzte Änderung:07 Feb 2013 20:56

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