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Attributing ozone to NOx emissions: Implications for climate mitigation measures

Grewe, Volker und Dahlmann, Katrin und Matthes, Sigrun und Steinbrecht, Wolfgang (2012) Attributing ozone to NOx emissions: Implications for climate mitigation measures. Atmospheric Environment, 59, Seiten 102-107. DOI: 10.1016/j.atmosenv.2012.05.002.

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Offizielle URL: http://www.sciencedirect.com/science/article/pii/S1352231012004335

Kurzfassung

Emissions of nitrogen oxides (NOx) lead to formation of ozone, which is an important greenhouse gas. Despite its relevance, little emphasis was previously given on verifying approaches to calculate contributions of individual emissions to ozone and hence to climate change. Basically two methods (perturbation method and tagging method) were used in the past. We demonstrate that both methods are valid and have their area of application, but only tagging calculates contributions of emissions to concentrations, whereas the perturbation method identifies changes in the ozone concentrations due to emission changes. Our results show that the contribution of road traffic emissions to climate change is underestimated by a factor of 5 in the perturbation method. This is caused by non-linear compensating effects from other emission sectors, which are concealed in the perturbation method but disclosed with tagging. Consequently, the effectiveness of mitigation measures for individual sectors (i.e. concentrating on road traffic induced ozone) is only correctly expressed by the tagging method. The perturbation method provides accurately the total impact (i.e. total ozone) of a mitigation measure. However, current approaches, which evaluate the effectiveness of a mitigation measure based on the perturbation approach, do not reflect changes in the chemical state of the atmosphere (i.e. ozone production rates). These largely affect the effectiveness of subsequent measures and hence make the evaluation of the effectiveness of two measures dependent on their chronology of application. We show that also in this regard, the tagging method is better suited to evaluate the effectiveness of a mitigation measure than the perturbation method.

Dokumentart:Zeitschriftenbeitrag
Titel:Attributing ozone to NOx emissions: Implications for climate mitigation measures
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Grewe, VolkerVolker.Grewe@dlr.de
Dahlmann, KatrinKatrin.Dahlmann@dlr.de
Matthes, SigrunSigrun.Matthes@dlr.de
Steinbrecht, WolfgangDWD, Hohenpeißenberg
Datum:November 2012
Erschienen in:Atmospheric Environment
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:59
DOI :10.1016/j.atmosenv.2012.05.002
Seitenbereich:Seiten 102-107
Status:veröffentlicht
Stichwörter:NOx emissions; Climate change mitigation; Ozone chemistry; Tagging
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Verkehr, Raumfahrt, Luftfahrt
HGF - Programmthema:Verkehrssystem, Erdbeobachtung, ATM und Flugbetrieb
DLR - Schwerpunkt:Verkehr, Raumfahrt, Luftfahrt
DLR - Forschungsgebiet:V VS - Verkehrssystem, R EO - Erdbeobachtung, L AO - Luftverkehrsmanagement und Flugbetrieb
DLR - Teilgebiet (Projekt, Vorhaben):V - VEU (alt), R - Vorhaben Atmosphären- und Klimaforschung, L - Klima, Wetter und Umwelt, V - Verkehrsentwicklung und Umwelt (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Dynamik der Atmosphäre
Hinterlegt von: Dr.rer.nat. Volker Grewe
Hinterlegt am:21 Aug 2012 15:06
Letzte Änderung:12 Dez 2013 21:45

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