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Numerical simulations of contrail-to-cirrus transition � Part 1: An extensive parametric study

Unterstrasser, Simon and Gierens, Klaus (2010) Numerical simulations of contrail-to-cirrus transition � Part 1: An extensive parametric study. Atmospheric Chemistry and Physics, 10 (4), pp. 2017-2036. Copernicus Publications.

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Official URL: http://www.atmos-chem-phys.net/10/2017/2010/acp-10-2017-2010.html

Abstract

Simulations of contrail-to-cirrus transition over up to 6 h were performed using a LES-model. The sensitivity of microphysical, optical and geometric contrail properties to relative humidity RHi, temperature T and vertical wind shear s was investigated in an extensive parametric study. The dominant parameter for contrail evolution is relative humidity. Substantial spreading is only visible for RHi�120%. Vertical wind shear has a smaller effect on optical properties than human observers might expect from the visual impression. Our model shows that after a few hours the water vapour removed by falling ice crystals from the contrail layer can be several times higher than the ice mass that is actually present in the contrail at any instance.

Item URL in elib:https://elib.dlr.de/63315/
Document Type:Article
Title:Numerical simulations of contrail-to-cirrus transition � Part 1: An extensive parametric study
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Unterstrasser, Simonsimon.unterstrasser (at) dlr.deUNSPECIFIED
Gierens, Klausklaus.gierens (at) dlr.deUNSPECIFIED
Date:19 February 2010
Journal or Publication Title:Atmospheric Chemistry and Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:10
Page Range:pp. 2017-2036
Publisher:Copernicus Publications
Status:Published
Keywords:Contrail cirrus microphysics radiation supersaturation aircraft numerical modeling
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:L VU - Air Traffic and Environment (old)
DLR - Research area:Aeronautics
DLR - Program:L VU - Air Traffic and Environment
DLR - Research theme (Project):L - Low-Emission Air Traffic (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Dynamics
Deposited By: Unterstraßer, Dr. Simon
Deposited On:25 Mar 2010 11:32
Last Modified:02 May 2019 14:03

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