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On optical and microphysical characteristics of contrails and cirrus

Febvre, Guy and Gayet, Jean-Francois and Minikin, Andreas and Schlager, Hans and Shcherbakov, Valéry and Jourdan, Olivier and Busen, Reinhold and Fiebig, Markus and Kärcher, Bernd and Schumann, Ulrich (2009) On optical and microphysical characteristics of contrails and cirrus. Journal of Geophysical Research, 114 (D02204), pp. 1-14. DOI: 10.1029/2008JD010184.

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Official URL: http://www.agu.org/journals/jd/

Abstract

In situ measurements of light scattering and microphysical characteristics of young and 20 min aged persistent contrails and of frontal cirrus clouds were carried out with the airborne Polar Nephelometer and microphysical PMS instruments. Optical and microphysical properties of contrails at different stages of evolution and of cirrus clouds sampled in ice-supersaturated air masses at ambient temperatures near -60°C are examined. The results show that quasi-spherical ice particles with diameter smaller than 5 µm control the optical properties of the plume shortly after formation. In slightly aged contrails the optical properties are governed by larger nonspherical ice-crystals. Very similar optical properties are observed in frontal cirrus but with a different ice-particle size distribution. The contrail optical and microphysical ice particle data obtained in this study are representative of the visible persistent contrail created by a mid-sized airliner after the wake vortices have decayed.

Document Type:Article
Title:On optical and microphysical characteristics of contrails and cirrus
Authors:
AuthorsInstitution or Email of Authors
Febvre, GuyUniv. Blaise Pascal, Clermont-Ferrand, F
Gayet, Jean-FrancoisUniv. Blaise Pascal, Clermont-Ferrand, F
Minikin, AndreasUNSPECIFIED
Schlager, HansUNSPECIFIED
Shcherbakov, ValéryUniv. Blaise Pascal, Clermont-Ferrand, F
Jourdan, OlivierUniv. Blaise Pascal, Clermont-Ferrand, F
Busen, ReinholdUNSPECIFIED
Fiebig, MarkusNILU, Kjeller, N
Kärcher, BerndUNSPECIFIED
Schumann, UlrichUNSPECIFIED
Date:2009
Journal or Publication Title:Journal of Geophysical Research
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:114
DOI:10.1029/2008JD010184
Page Range:pp. 1-14
Status:Published
Keywords:cirrus, contrails
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignement
DLR - Research theme (Project):L -- no assignement
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Dr.rer.nat. Andreas Minikin
Deposited On:18 Nov 2008
Last Modified:23 Jan 2014 11:36

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