000001576 001__ 1576 000001576 005__ 20240712100858.0 000001576 0247_ $$2Handle$$a2128/10182 000001576 037__ $$aPreJuSER-1576 000001576 041__ $$aeng 000001576 082__ $$a550 000001576 1001_ $$0P:(DE-HGF)0$$aVoigt, C.$$b0 000001576 245__ $$aDetection of reactive nitrogen containing particles in the tropopause region ? Evidence for a tropical nitric acid trihydrate (NAT) belt 000001576 260__ $$aKatlenburg-Lindau$$bEGU$$c2008 000001576 300__ $$a14145 - 14168 000001576 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article 000001576 3367_ $$2DataCite$$aOutput Types/Journal article 000001576 3367_ $$00$$2EndNote$$aJournal Article 000001576 3367_ $$2BibTeX$$aARTICLE 000001576 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000001576 3367_ $$2DRIVER$$aarticle 000001576 440_0 $$08621$$aAtmospheric Chemistry and Physics / Discussions$$v8$$x1680-7367 000001576 500__ $$aThe M55-Geophysica AMMA-SCOUT campaign in West Africa was funded by the Geophysica EEIG, French CNRS-INSU/CNES and European Community sixth framework integrated projects SCOUT-O3 (505390-GOCE-CT-2004) and AMMA-EU. Based on a French initiative, AMMA was built by an international scientific group and is currently funded by a large number of agencies, especially from France, UK, US and Africa. It has been the beneficiary of a major financial contribution from the European Community's Sixth Framework Research Programme. CV performed part of the work within the Junior Research Group AEROTROP and MdR acknowledges the support through the SFB641:TROPICE. We thank B. Luo, B. K archer, D. Fahey and T. Peter for fruitfull discussions. The Geophyisca crew is acknowledged for excellent flight operation and K. Law and F. Cairo for the coordination of the Geophysica campaign. The global model simulations have been performed on the NEC SX-6 high performance computer of the German Computing Centre (DKRZ). ECMWF data were provided by the European Centre for Medium Range Weather Forecasts. 000001576 520__ $$aThe detection of nitric acid trihydrate (NAT, HNO3 x 3H(2)O) particles in the tropical transition layer (TTL) harmonizes our understanding of polar stratospheric cloud formation. Large reactive nitrogen (NOy) containing particles were observed on 8 August 2006 by instruments on-board the high altitude research aircraft M55-Geophysica near and below the tropical tropopause. The particles, most likely NAT, have diameters less than 6 mu m and concentrations below 10(-4) cm(-3). The NAT particle layer was repeatedly detected at altitudes between 15.1 and 17.5 km over extended areas of 9.5 to 17.2 degrees N and 1.5 degrees W to 2.7 degrees E above the African continent. Satellite observations suggest that the NAT particles could have nucleated on ice fed by convective activity. Once nucleated, the NAT particles can slowly grow within the TTL for days, while being transported over long distances. Their in-situ detection combined with global model simulations of the NAT supersaturation near the tropical tropopause indicate the potential for a tropical tropopause NAT particle belt. 000001576 536__ $$0G:(DE-Juel1)FUEK406$$2G:(DE-HGF)$$aAtmosphäre und Klima$$cP22$$x0 000001576 588__ $$aDataset connected to Web of Science 000001576 650_7 $$2WoSType$$aJ 000001576 7001_ $$0P:(DE-HGF)0$$aSchlager, H.$$b1 000001576 7001_ $$0P:(DE-HGF)0$$aRoiger, A.$$b2 000001576 7001_ $$0P:(DE-HGF)0$$aStenke, A.$$b3 000001576 7001_ $$0P:(DE-HGF)0$$ade Reus, M.$$b4 000001576 7001_ $$0P:(DE-HGF)0$$aBorrmann, S.$$b5 000001576 7001_ $$0P:(DE-HGF)0$$aJensen, E.$$b6 000001576 7001_ $$0P:(DE-Juel1)VDB1410$$aSchiller, C.$$b7$$uFZJ 000001576 7001_ $$0P:(DE-Juel1)129130$$aKonopka, P.$$b8$$uFZJ 000001576 7001_ $$0P:(DE-HGF)0$$aSitnikov, N.$$b9 000001576 773__ $$0PERI:(DE-600)2069857-4$$gVol. 8, p. 14145 - 14168$$p14145 - 14168$$q8<14145 - 14168$$tAtmospheric chemistry and physics / Discussions$$v8$$x1680-7367$$y2008 000001576 8564_ $$uhttps://juser.fz-juelich.de/record/1576/files/acpd-8-14145-2008.pdf$$yOpenAccess 000001576 8564_ $$uhttps://juser.fz-juelich.de/record/1576/files/acpd-8-14145-2008.gif?subformat=icon$$xicon$$yOpenAccess 000001576 8564_ $$uhttps://juser.fz-juelich.de/record/1576/files/acpd-8-14145-2008.jpg?subformat=icon-180$$xicon-180$$yOpenAccess 000001576 8564_ $$uhttps://juser.fz-juelich.de/record/1576/files/acpd-8-14145-2008.jpg?subformat=icon-700$$xicon-700$$yOpenAccess 000001576 8564_ $$uhttps://juser.fz-juelich.de/record/1576/files/acpd-8-14145-2008.pdf?subformat=pdfa$$xpdfa$$yOpenAccess 000001576 909CO $$ooai:juser.fz-juelich.de:1576$$pdnbdelivery$$pVDB$$pdriver$$popen_access$$popenaire 000001576 9141_ $$y2008 000001576 915__ $$0LIC:(DE-HGF)CCBY3$$2HGFVOC$$aCreative Commons Attribution CC BY 3.0 000001576 915__ $$0StatID:(DE-HGF)0020$$aNo peer review 000001576 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess 000001576 9131_ $$0G:(DE-Juel1)FUEK406$$aDE-HGF$$bUmwelt$$kP22$$lAtmosphäre und Klima$$vAtmosphäre und Klima$$x0$$zfortgesetzt als P23 000001576 9201_ $$0I:(DE-Juel1)VDB790$$d30.09.2010$$gICG$$kICG-1$$lStratosphäre$$x1 000001576 970__ $$aVDB:(DE-Juel1)103004 000001576 9801_ $$aUNRESTRICTED 000001576 9801_ $$aFullTexts 000001576 980__ $$aVDB 000001576 980__ $$aConvertedRecord 000001576 980__ $$ajournal 000001576 980__ $$aI:(DE-Juel1)IEK-7-20101013 000001576 980__ $$aUNRESTRICTED 000001576 981__ $$aI:(DE-Juel1)ICE-4-20101013 000001576 981__ $$aI:(DE-Juel1)IEK-7-20101013