DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

Study of contrail microphysics in the vortex phase with a Lagrangian particle tracking model

Unterstrasser, Simon und Sölch, Ingo (2010) Study of contrail microphysics in the vortex phase with a Lagrangian particle tracking model. Atmospheric Chemistry and Physics, 10, Seiten 10003-10015. Copernicus Productions. DOI: 10.5194/acp-10-10003-2010.

PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader

Offizielle URL: http://www.atmos-chem-phys.net/10/10003/2010


Crystal sublimation/loss is a dominant feature of the contrail evolution during the vortex phase and has a substantial impact on the later contrail-to-cirrus transition. Previous studies showed that the fraction of crystals surviving the vortex phase depends primarily on relative humidity, temperature and the aircraft type. An existing model for contrail vortex phase simulations (with a 2-moment bulk microphysics scheme) was upgraded with a newly developed state-of-the-art microphysics module (LCM) which uses Lagrangian particle tracking. This allows for explicit process-oriented modelling of the ice crystal size distribution in contrast to the bulk approach. We show that it is of great importance to employ an advanced microphysics scheme to determine the crystal loss during the vortex phase. The LCM-model shows even larger sensitivities to the above mentioned key parameters than previously estimated with the bulk model. The impact of the initial crystal number is studied and for the first time also the initial width of the crystal size distribution. Both are shown to be relevant. This corroborates the need for a realistic representation of microphysical processes and knowledge of the ice phase characteristics.

Titel:Study of contrail microphysics in the vortex phase with a Lagrangian particle tracking model
AutorenInstitution oder E-Mail-Adresse der Autoren
Unterstrasser, SimonNICHT SPEZIFIZIERT
Datum:25 Oktober 2010
Erschienen in:Atmospheric Chemistry and Physics
Referierte Publikation:Ja
In Open Access:Ja
In ISI Web of Science:Ja
DOI :10.5194/acp-10-10003-2010
Seitenbereich:Seiten 10003-10015
Verlag:Copernicus Productions
Stichwörter:contrail, vortexphase, sublimation, contrail-cirrus, microphysics, numerical modeling
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:L VU - Luftverkehr und Umwelt (alt)
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L VU - Luftverkehr und Umwelt
DLR - Teilgebiet (Projekt, Vorhaben):L - Luftverkehr und Wetter (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Dynamik der Atmosphäre
Hinterlegt von: Dr. Simon Unterstraßer
Hinterlegt am:08 Nov 2010 09:53
Letzte Änderung:12 Dez 2013 21:04

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Hilfe & Kontakt
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.