000029089 001__ 29089 000029089 005__ 20240712100830.0 000029089 0247_ $$2DOI$$a10.1175/JAS-3330.1 000029089 0247_ $$2WOS$$aWOS:000228012100025 000029089 0247_ $$2Handle$$a2128/7633 000029089 037__ $$aPreJuSER-29089 000029089 041__ $$aeng 000029089 082__ $$a550 000029089 084__ $$2WoS$$aMeteorology & Atmospheric Sciences 000029089 1001_ $$0P:(DE-Juel1)129122$$aGrooß, J.-U.$$b0$$uFZJ 000029089 245__ $$aOzone Chemistry During the 2002 Antarctic Vortex Split 000029089 260__ $$aBoston, Mass.$$bAmerican Meteorological Soc.$$c2005 000029089 300__ $$a860 - 870 000029089 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article 000029089 3367_ $$2DataCite$$aOutput Types/Journal article 000029089 3367_ $$00$$2EndNote$$aJournal Article 000029089 3367_ $$2BibTeX$$aARTICLE 000029089 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000029089 3367_ $$2DRIVER$$aarticle 000029089 440_0 $$07881$$aJournal of the Atmospheric Sciences$$v62$$x0022-4928$$y3 000029089 500__ $$aRecord converted from VDB: 12.11.2012 000029089 520__ $$aIn September 2002, the Antarctic polar vortex was disturbed, and it split into two parts caused by an unusually early stratospheric major warming. This study discusses the chemical consequences of this event using the Chemical Lagrangian Model of the Stratosphere (CLaMS). The chemical initialization of the simulation is based on Halogen Occultation Experiment (HALOE) measurements. Because of its Lagrangian nature, CLaMS is well suited for simulating the small-scale filaments that evolve during this period. Filaments of vortex origin in the midlatitudes were observed by HALOE several times in October 2002. The results of the simulation agree well with these HALOE observations. The simulation further indicates a very rapid chlorine deactivation that is triggered by the warming associated with the split of the vortex. Correspondingly, the ozone depletion rates in the polar vortex parts rapidly decrease to zero. Outside the polar vortex, where air masses of midlatitude origin were transported to the polar region, the simulation shows high ozone depletion rates at the 700-K level caused mainly by NO, chemistry. Owing to the major warming in September 2002, ozone-poor air masses were transported into the midlatitudes and caused a decrease of midlatitude ozone by 5%-15%, depending on altitude. Besides this dilution effect, there was no significant additional chemical effect. The net chemical ozone depletion in air masses of vortex origin was low and did not differ significantly from that of midlatitude air, in spite of the different chemical composition of the two types of air masses. 000029089 536__ $$0G:(DE-Juel1)FUEK257$$2G:(DE-HGF)$$aChemie und Dynamik der Geo-Biosphäre$$cU01$$x0 000029089 588__ $$aDataset connected to Web of Science 000029089 650_7 $$2WoSType$$aJ 000029089 7001_ $$0P:(DE-Juel1)129130$$aKonopka, Paul$$b1$$uFZJ 000029089 7001_ $$0P:(DE-Juel1)129138$$aMüller, R.$$b2$$uFZJ 000029089 773__ $$0PERI:(DE-600)2025890-2$$a10.1175/JAS-3330.1$$gVol. 62, p. 860 - 870$$p860 - 870$$q62<860 - 870$$tJournal of the atmospheric sciences$$v62$$x0022-4928$$y2005 000029089 8564_ $$uhttps://juser.fz-juelich.de/record/29089/files/Groo%C3%9F_2005.Ozone.pdf$$yOpenAccess 000029089 909CO $$ooai:juser.fz-juelich.de:29089$$pdnbdelivery$$pVDB$$pdriver$$popen_access$$popenaire 000029089 9131_ $$0G:(DE-Juel1)FUEK257$$bEnvironment (Umwelt)$$kU01$$lChemie und Dynamik der Geo-Biosphäre$$vChemie und Dynamik der Geo-Biosphäre$$x0 000029089 9141_ $$y2005 000029089 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed 000029089 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess 000029089 9201_ $$0I:(DE-Juel1)VDB47$$d31.12.2006$$gICG$$kICG-I$$lStratosphäre$$x0 000029089 970__ $$aVDB:(DE-Juel1)25126 000029089 9801_ $$aFullTexts 000029089 980__ $$aVDB 000029089 980__ $$aConvertedRecord 000029089 980__ $$ajournal 000029089 980__ $$aI:(DE-Juel1)IEK-7-20101013 000029089 980__ $$aUNRESTRICTED 000029089 980__ $$aFullTexts 000029089 981__ $$aI:(DE-Juel1)ICE-4-20101013 000029089 981__ $$aI:(DE-Juel1)IEK-7-20101013