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Radiative Effects of contrails and contrail cirrus

Gierens, Klaus (2015) Radiative Effects of contrails and contrail cirrus. Contrail-Cirrus, other Non-CO2 Effects and Smart Flying, 22. Okt. 2015, London, Großbritannien. (Unpublished)

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Abstract

Contrails and contrail-cirrus contribute a large share to aviation’s greenhouse forcing and strategies to mitigate their adverse effects have been quested after for many years now. The magnitude of radiative forcing due to contrails and contrail-cirrus is yet uncertain and, surprisingly, many years of research and many measurement campaigns could not essentially reduce the uncertainty, often a pretext for non-action. After introducing the principles of radiative effects of contrails I will thus discuss the true meaning of the uncertainty of radiative forcing and will contrast it to natural variability. This shows that reduction of the mentioned uncertainty is unrelated to measures for avoidance of warming contrails. The pertinacious uncertainty can thus not honestly be taken as a reason for not to act against them. A good strategy for avoiding warming contrails needs a fast algorithm for computing the radiative effects of single contrails. A recent example will be presented.

Item URL in elib:https://elib.dlr.de/98923/
Document Type:Conference or Workshop Item (Speech)
Title:Radiative Effects of contrails and contrail cirrus
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gierens, KlausDLR, IPAUNSPECIFIED
Date:22 October 2015
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Unpublished
Keywords:Kondensstreifen, Strahlung, Radiative Forcing, Klimaeffekt, Minderung des Klimaeffekts
Event Title:Contrail-Cirrus, other Non-CO2 Effects and Smart Flying
Event Location:London, Großbritannien
Event Type:Workshop
Event Dates:22. Okt. 2015
Organizer:Royal Aeronautical Society, Greener by Design Committee
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Climate, Weather and Environment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Earth System Modelling
Deposited By: Gierens, Dr.rer.nat. Klaus Martin
Deposited On:29 Oct 2015 08:26
Last Modified:31 Jul 2019 19:55

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