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Numerical simulations of homogeneously nucleated natural cirrus and contrail-cirrus. Part 1: How different are they?

Unterstraßer, Simon and Gierens, Klaus and Sölch, Ingo and Lainer, Martin (2017) Numerical simulations of homogeneously nucleated natural cirrus and contrail-cirrus. Part 1: How different are they? Meteorologische Zeitschrift, 26 (6), pp. 621-642. Borntraeger Science Publishers. DOI: 10.1127/metz/2016/0777 ISSN 0941-2948

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Official URL: http://dx.doi.org/10.1127/metz/2016/0777

Abstract

The evolution of contrail-cirrus and natural cirrus formed by homogeneous nucleation is studied over up to ten hours by means of a Large-Eddy Simulation (LES) model equipped with a Lagrangian ice microphysics module. This is the first time that both cloud types are investigated in a single study. Characteristics of their life cycles depend strongly on the synoptic scenario. Weak, but enduring updraughts allow for the longest life times of contrail-cirrus. For cirrus clouds, the updraught speed during their formation is most crucial. Once contrails lose their linear shape they are hardly distinguishable from natural cirrus which makes it difficult to evaluate the extent and effect of the anthropogenic cloud modification. Despite their different formation mechanisms (contrails are generated locally and have initially much higher ice crystal number concentrations than natural cirrus) we could not single out microphysical criteria that could help to distinguish in general between both cloud types in observations.

Item URL in elib:https://elib.dlr.de/106633/
Document Type:Article
Title:Numerical simulations of homogeneously nucleated natural cirrus and contrail-cirrus. Part 1: How different are they?
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Unterstraßer, SimonDLR, IPAhttps://orcid.org/0000-0003-3772-3678
Gierens, KlausDLR, IPAUNSPECIFIED
Sölch, IngoDLR, IPAUNSPECIFIED
Lainer, MartinDLR, IPAUNSPECIFIED
Date:December 2017
Journal or Publication Title:Meteorologische Zeitschrift
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:26
DOI :10.1127/metz/2016/0777
Page Range:pp. 621-642
Publisher:Borntraeger Science Publishers
ISSN:0941-2948
Status:Published
Keywords:Kondenstreifen, Zirrus, Lagrange'sche Mikrophysik, Flugverkehr, LES-Modellierung
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 > Transport Meteorology
Institute of Atmospheric Physics > Earth System Modelling
Deposited By: Unterstraßer, Dr. Simon
Deposited On:17 Oct 2016 11:27
Last Modified:01 Dec 2018 19:52

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