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Distinctive efficacies of the components contributing to total aviation climate impact

Ponater, M. (2010) Distinctive efficacies of the components contributing to total aviation climate impact. In: Proceedings of the 2nd International Conference on Transport, Atmosphere and Climate (TAC-2), 2010 (10), pp. 227-232. Deutsches Zentrum für Luft- und Raumfahrt. 2nd International Conference on Transport, Atmosphere and Climate (TAC-2), 22-25 Jun 2009, Aachen, Germany and Maastricht, The Netherlands. ISSN 1434-8454

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Official URL: http://www.pa.op.dlr.de/tac/2009/proceedings.html

Abstract

Separate climate sensitivity simulations were run for all important non-CO2 radiative forcing contributions from aviation (except for contrail cirrus), aiming at the quantification of an individual efficacy parameter for each component. All simulations were performed with the same climate model, E39A. The necessity to scale the original perturbations complicates a straightforward determination of efficacy values, particularly for aviation ozone. The results presented here indicate that a radiative forcing from water vapour increase caused by supersonic aviation would have a similar efficacy than CO2. Ozone changes induced by subsonic aviation and methane changes appear to have an efficacy larger than CO2, but the enhancement is moderate (~1.05). For line-shaped contrails we find an efficacy substantially smaller (~0.6) than CO2 in agreement with previous results. The (small) water vapour increase expected from subsonic aviation shows reduced efficacy (~0.7), too. Similar studies with other climate models are desirable in view of probable model dependency.

Document Type:Conference or Workshop Item (Poster)
Title:Distinctive efficacies of the components contributing to total aviation climate impact
Authors:
AuthorsInstitution or Email of Authors
Ponater, M.UNSPECIFIED
Date:2010
Journal or Publication Title:Proceedings of the 2nd International Conference on Transport, Atmosphere and Climate (TAC-2)
Volume:2010
Page Range:pp. 227-232
Editors:
EditorsEmail
Sausen, RUNSPECIFIED
van Velthoven, PFJUNSPECIFIED
Brüning, CUNSPECIFIED
Blum, AUNSPECIFIED
Publisher:Deutsches Zentrum für Luft- und Raumfahrt
Series Name:Forschungsbericht
ISSN:1434-8454
Status:Published
Keywords:Aviation Climate Impact, Contrails, Water Vapour, Efficacy
Event Title:2nd International Conference on Transport, Atmosphere and Climate (TAC-2)
Event Location:Aachen, Germany and Maastricht, The Netherlands
Event Type:international Conference
Event Dates:22-25 Jun 2009
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Umweltwirkungen des Verkehrs (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Dynamics
Deposited By: Dr.rer.nat. Michael Ponater
Deposited On:07 Jan 2011 13:41
Last Modified:18 Mar 2013 16:55

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