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000019850 084__ $$2WoS$$aMeteorology & Atmospheric Sciences
000019850 1001_ $$0P:(DE-HGF)0$$aReitz, P.$$b0
000019850 245__ $$aSurface modification of mineral dust particles by sulphuric acid processing: implications for ice nucleation abilities
000019850 260__ $$aKatlenburg-Lindau$$bEGU$$c2011
000019850 300__ $$a7839 - 7858
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000019850 440_0 $$09601$$aAtmospheric Chemistry and Physics$$v11$$x1680-7316$$y15
000019850 500__ $$3POF3_Assignment on 2016-02-29
000019850 500__ $$aThis work was conducted within the Helmholtz virtual institute on aerosol cloud interaction and supported by the Integration of European Simulation Chambers for Investigating Atmospheric Processes (EUROCHAMP) program as well as by the US National Science Foundation (Grant ATM-0611936). We thank all the participants of the FROST campaigns for their support and valuable discussions.
000019850 520__ $$aThe ability of coated mineral dust particles to act as ice nuclei (IN) was investigated at LACIS (Leipzig Aerosol Cloud Interaction Simulator) during the FROST1- and FROST2-campaigns (Freezing of dust). Sulphuric acid was condensed on the particles which afterwards were optionally humidified, treated with ammonia vapour and/or heat. By means of aerosol mass spectrometry we found evidence that processing of mineral dust particles with sulphuric acid leads to surface modifications of the particles. These surface modifications are most likely responsible for the observed reduction of the IN activation of the particles. The observed particle mass spectra suggest that different treatments lead to different chemical reactions on the particle surface. Possible chemical reaction pathways and products are suggested and the implications on the IN efficiency of the treated dust particles are discussed.
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000019850 7001_ $$0P:(DE-Juel1)VDB73341$$aSpindler, C.$$b1$$uFZJ
000019850 7001_ $$0P:(DE-Juel1)16346$$aMentel, T.F.$$b2$$uFZJ
000019850 7001_ $$0P:(DE-HGF)0$$aPoulain, L.$$b3
000019850 7001_ $$0P:(DE-HGF)0$$aWex, H.$$b4
000019850 7001_ $$0P:(DE-HGF)0$$aMildenberger, K.$$b5
000019850 7001_ $$0P:(DE-HGF)0$$aNiedermeier, D.$$b6
000019850 7001_ $$0P:(DE-HGF)0$$aHartmann, S.$$b7
000019850 7001_ $$0P:(DE-HGF)0$$aClauss, T.$$b8
000019850 7001_ $$0P:(DE-HGF)0$$aStratmann, F.$$b9
000019850 7001_ $$0P:(DE-HGF)0$$aSullivan, R.C.$$b10
000019850 7001_ $$0P:(DE-HGF)0$$aDeMott, P.J.$$b11
000019850 7001_ $$0P:(DE-HGF)0$$aPetters, M.D.$$b12
000019850 7001_ $$0P:(DE-HGF)0$$aSierau, B.$$b13
000019850 7001_ $$0P:(DE-HGF)0$$aSchneider, J.$$b14
000019850 773__ $$0PERI:(DE-600)2069847-1$$a10.5194/acp-11-7839-2011$$gVol. 11, p. 7839 - 7858$$p7839 - 7858$$q11<7839 - 7858$$tAtmospheric chemistry and physics$$v11$$x1680-7316$$y2011
000019850 8567_ $$uhttp://dx.doi.org/10.5194/acp-11-7839-2011
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