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Climate assessment of single flights: Deduction of route specific equivalent CO2 emissions

Dahlmann, Katrin and Grewe, Volker and Matthes, Sigrun and Yamashita, Hiroshi (2021) Climate assessment of single flights: Deduction of route specific equivalent CO2 emissions. International Journal of Sustainable Transportation, pp. 1-12. Taylor & Francis. doi: 10.1080/15568318.2021.1979136. ISSN 1556-8318.

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Official URL: http://dx.doi.org/10.1080/15568318.2021.1979136


Climate impact of anthropogenic activities is more and more of public concern. But while CO2 emissions are accounted in emissions trading and mitigation plans, emissions of non-CO2 components contributing to climate change receive much less attention. One of the anthropogenic emission sectors, where non-CO2 effects play an important part, is aviation. Hence, for a quantitative estimate of total aviation climate impact, assessments need to comprise both CO2 and non-CO2 effects (e.g., water vapor, nitrogen dioxide, and contrails), instead of calculating and providing only CO2 impacts. However, while a calculation of CO2 effects relies directly on fuel consumption, for non-CO2 effects detailed information on aircraft trajectory, engine emissions, and ambient atmospheric conditions are required. As often such comprehensive information is not available for all aircraft movements, a simplified calculation method is required to calculate non-CO2 impacts. In our study, we introduce a simple calculation method which allows quantifying climate assessment relying on mission parameters, involving distance and geographic flight region. We present a systematic analysis of simulated climate impact from more than 1000 city pairs with an Airbus A330-200 aircraft depending on the flight distance and flight region to derive simplified but still realistic representation of the non-CO2 climate effects. These new formulas much better represent the climate impact of non-CO2 effects compared to a constant CO2 multiplier. The mean square error decrease from 1.18 for a constant factor down to 0.24 for distance dependent factors and can be reduced even further to 0.19 for a distance and latitude dependent factor.

Item URL in elib:https://elib.dlr.de/144466/
Document Type:Article
Title:Climate assessment of single flights: Deduction of route specific equivalent CO2 emissions
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Dahlmann, KatrinDLR, IPAhttps://orcid.org/0000-0003-3198-1713UNSPECIFIED
Grewe, VolkerDLR, IPAhttps://orcid.org/0000-0002-8012-6783UNSPECIFIED
Matthes, SigrunDLR, IPAhttps://orcid.org/0000-0002-5114-2418UNSPECIFIED
Yamashita, HiroshiDLR, IPAhttps://orcid.org/0000-0003-2458-1826UNSPECIFIED
Date:26 September 2021
Journal or Publication Title:International Journal of Sustainable Transportation
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1-12
Publisher:Taylor & Francis
Keywords:Aviation, carbon footprint, climate impact, CO2 equivalents, non-CO2 effects, response model
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Air Transportation and Impact
DLR - Research area:Aeronautics
DLR - Program:L AI - Air Transportation and Impact
DLR - Research theme (Project):L - Climate, Weather and Environment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Earth System Modelling
Deposited By: Dahlmann, Katrin
Deposited On:11 Oct 2021 15:53
Last Modified:12 Oct 2021 12:38

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