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Statistical Analysis of Contrail to Cirrus Evolution during the Contrail and Cirrus Experiments (CONCERT)

Chauvigné, Aurélien and Jourdan, Olivier and Schwarzenboeck, Alfons and Gourbeyre, Christophe and Voigt, Christiane and Schlager, Hans and Kaufmann, Stefan and Borrmann, Stephan and Molleker, Sergej and Minikin, Andreas and Jurkat, Tina and Schumann, Ulrich (2017) Statistical Analysis of Contrail to Cirrus Evolution during the Contrail and Cirrus Experiments (CONCERT). Atmospheric Chemistry and Physics Discussions, pp. 1-27. Copernicus Publications. DOI: 10.5194/acp-2017-946 ISSN 1680-7367

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Official URL: http://dx.doi.org/10.5194/acp-2017-946

Abstract

Air traffic affects the cloudiness, and thus the climate, by emitting exhaust gases and particles. The study of the evolution of contrail properties is very challenging due to the complex interplay of vortex dynamics and atmospheric environment (e.g. temperature, supersaturation). Despite substantial progress in recent years, the optical, microphysical, and macrophysical cloud properties of contrails and ambient cirrus observed during contrail formation and subsequent ageing are still subject to large uncertainties due to instrumental and observational limitations and the large number of variables influencing the contrail life cycle. In this study, various contrail cases corresponding to different aircraft types and atmospheric conditions are investigated using a statistical method based on the in situ optical measurements performed during the CONCERT campaigns 2008 and 2011. These two aircraft campaigns encompass more than 17 aircraft contrail cases. A Principal Component Analysis (PCA) of the angular scattering coefficients measured by the Polar Nephelometer has been implemented in order to classify the sampled ice cloud measurements in 6 clusters representative of different development stages of the contrails (primary wake, young contrail, contrail-cirrus and natural cirrus). Based on the information derived from air traffic control, extinction coefficients, asymmetry coefficients, nitrogen oxide concentrations, relative humidity with respect to ice (RHI) and particle size distributions are analyzed for each cluster to provide a characterization of the evolution of ice- cloud properties during the contrail to cirrus evolution. The PCA demonstrates that contrail optical properties are well suited to identify and discriminate the different contrail growth stages and to provide an independent method for the characterization of the evolution of contrail properties.

Item URL in elib:https://elib.dlr.de/115430/
Document Type:Article
Title:Statistical Analysis of Contrail to Cirrus Evolution during the Contrail and Cirrus Experiments (CONCERT)
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Chauvigné, AurélienUniv. Blaise Pascal, Aubière, FrankreichUNSPECIFIED
Jourdan, OlivierUniv. Blaise Pascal, Aubière, FrankreichUNSPECIFIED
Schwarzenboeck, AlfonsUniv. Blaise Pascal, Aubière, FrankreichUNSPECIFIED
Gourbeyre, ChristopheUniv. Blaise Pascal, Aubière, FrankreichUNSPECIFIED
Voigt, ChristianeDLR, IPAhttps://orcid.org/0000-0001-8925-7731
Schlager, HansDLR, IPAUNSPECIFIED
Kaufmann, StefanDLR, IPAUNSPECIFIED
Borrmann, StephanUniv. MainzUNSPECIFIED
Molleker, SergejMPI für Chemie, MainzUNSPECIFIED
Minikin, AndreasDLR, IPAUNSPECIFIED
Jurkat, TinaDLR, IPAUNSPECIFIED
Schumann, UlrichDLR, IPAUNSPECIFIED
Date:2017
Journal or Publication Title:Atmospheric Chemistry and Physics Discussions
Refereed publication:No
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:No
In ISI Web of Science:No
DOI :10.5194/acp-2017-946
Page Range:pp. 1-27
Publisher:Copernicus Publications
ISSN:1680-7367
Status:Published
Keywords:contrail, cirrus, contrail measurements, contrail properties
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 > Cloud Physics
Deposited By: Voigt, Dr.rer.nat. Christiane
Deposited On:16 Nov 2017 11:32
Last Modified:02 May 2019 14:12

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