Quantification of transport across the boundary of the lower stratospheric vortex during Arctic winter 2002/2003

Strong perturbations of the Arctic stratosphere during the winter 2002/2003 by planetary waves led to enhanced stretching and folding of the vortex. On two occasions the vortex in the lower stratosphere split into two se
Strong perturbations of the Arctic stratosphere during the winter 2002/2003 by planetary waves led to enhanced stretching and folding of the vortex. On two occasions the vortex in the lower stratosphere split into two secondary vortices that re-merged after some days. As a result of these strong disturbances the role of transport in and out of the vortex was stronger than usual. An advection and mixing simulation with the Chemical Lagrangian Model of the Stratosphere (CLaMS) utilising a suite of inert tracers tagging the original position of the air masses has been carried out. The results show a variety of synoptic and small scale features in the vicinity of the vortex boundary, especially long filaments peeling off the vortex edge and being slowly mixed into the mid latitude environment. The vortex folding events, followed by re-merging of different parts of the vortex led to strong filamentation of the vortex interior. During January, February, and March 2003 flights of the Russian high-altitude aircraft Geophysica were performed in order to probe the vortex, filaments and in one case the merging zone between the secondary vortices. Comparisons between CLaMS results and observations obtained from the Geophysica flights show in general good agreement.
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Metadaten
Author:Gebhard Günther, Rolf Müller, Marc von Hobe, Fred Stroh, Paul Konopka, C.-Michael Volk
URN:urn:nbn:de:hebis:30:3-292580
URL:http://www.atmos-chem-phys-discuss.net/7/17559/2007/
DOI:http://dx.doi.org/10.5194/acpd-7-17559-2007
ISSN:1680-7367
ISSN:1680-7375
Parent Title (English):Atmospheric chemistry and physics / Discussions
Publisher:European Geosciences Union
Place of publication:Katlenburg-Lindau
Document Type:Article
Language:English
Date of Publication (online):2007/12/04
Date of first Publication:2007/12/04
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2013/03/21
Volume:7
Pagenumber:39
First Page:17559
Last Page:17597
Note:
© Author(s) 2007. This work is licensed under a Creative Commons License.
HeBIS PPN:335513816
Institutes:Geowissenschaften
Dewey Decimal Classification:550 Geowissenschaften
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 3.0

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