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In situ observations of ice particle losses in a young persistent contrail

Kleine, Jonas and Voigt, Christiane and Sauer, Daniel and Schlager, Hans and Scheibe, Monika and Jurkat-Witschas, Tina and Kaufmann, Stefan and Kärcher, Bernd and Anderson, Bruce E. (2018) In situ observations of ice particle losses in a young persistent contrail. Geophysical Research Letters, pp. 13553-13561. Wiley. DOI: 10.1029/2018GL079390 ISSN 0094-8276

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Official URL: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2018GL079390

Abstract

We describe results of in situ observations of a 1 to 2-min old contrail in the vortex Phase generated from soot-rich exhaust (> 10^15 emitted soot particles per kg-fuel burned). Simultaneous measurements of soot (EIsoot) and apparent ice (AEIice) particle number emission indices show a pronounced anti-correlation in the vertical contrail profile. AEIice decrease by about 75% with increasing distance below the contrail-producing aircraft,while EIsoot increase by an equivalent relative fraction, therefore strongly suggesting sublimation causing the ice particle losses. Quantifying these losses in measurements helps to validate and improve contrail parameterizations used to estimate the climate Impact of contrails and contrail cirrus.

Item URL in elib:https://elib.dlr.de/124016/
Document Type:Article
Title:In situ observations of ice particle losses in a young persistent contrail
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kleine, JonasDLR, IPAUNSPECIFIED
Voigt, ChristianeDLR, IPAhttps://orcid.org/0000-0001-8925-7731
Sauer, DanielDLR, IPAhttps://orcid.org/0000-0002-0317-5063
Schlager, HansDLR, IPAUNSPECIFIED
Scheibe, MonikaDLR, IPAUNSPECIFIED
Jurkat-Witschas, TinaDLR, IPAUNSPECIFIED
Kaufmann, StefanDLR, IPAUNSPECIFIED
Kärcher, BerndDLR, IPAhttps://orcid.org/0000-0003-0278-4980
Anderson, Bruce E.NASA, Langley, USAUNSPECIFIED
Date:2018
Journal or Publication Title:Geophysical Research Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1029/2018GL079390
Page Range:pp. 13553-13561
Publisher:Wiley
ISSN:0094-8276
Status:Published
Keywords:contrails, in-situ measurements, vortex Phase, soot, ice
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
Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Voigt, Dr.rer.nat. Christiane
Deposited On:03 Dec 2018 13:47
Last Modified:31 Jul 2019 20:21

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