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Selected topics on interactions between cirrus clouds and embedded contrails

Gierens, K. (2012) Selected topics on interactions between cirrus clouds and embedded contrails. Atmospheric Chemistry and Physics, 12, pp. 11943-11949. DOI: 10.5194/acp-12-11943-2012.

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Official URL: http://www.atmos-chem-phys.net/12/11943/2012/acp-12-11943-2012.pdf


Persistent contrails and natural cirrus clouds often coexist in the upper troposphere and contrails can be embedded within cirrus clouds. The present paper deals with some questions regarding the interaction of cirrus clouds and embedded contrails. I have selected only questions that can be answered by analytical means. I find that (1) the emission index for water vapour is only slightly changed when an aircraft crosses a cirrus cloud, (2) that contrail formation is not affected by an ambient cirrus, (3) that cirrus ice crystals entrained into the trailing wing tip vortex do not efficiently retard the sublimation of contrail ice crystals, and (4) that cirrus can start to dissolve an embedded contrail after a couple of hours by aggregation.

Document Type:Article
Title:Selected topics on interactions between cirrus clouds and embedded contrails
AuthorsInstitution or Email of Authors
Date:September 2012
Journal or Publication Title:Atmospheric Chemistry and Physics
Refereed publication:Yes
In Open Access:Yes
In ISI Web of Science:Yes
Page Range:pp. 11943-11949
Keywords:Cirrus clouds, condensation trails
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space, Aeronautics
HGF - Program Themes:Earth Observation, ATM and Operation
DLR - Research area:Raumfahrt, Aeronautics
DLR - Program:R EO - Erdbeobachtung, L AO - Air Traffic Management and Operation
DLR - Research theme (Project):R - Vorhaben Atmosphären- und Klimaforschung, L - Climate, Weather and Environment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Dynamics
Deposited By: Dr.rer.nat. Klaus Martin Gierens
Deposited On:08 Oct 2012 16:24
Last Modified:12 Dec 2013 21:47

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