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Origin of Aerosol Particles in the Mid-latitude and Subtropical Upper Troposphere and Lowermost Stratosphere from Cluster Analysis of Caribic Data : Volume 9, Issue 21 (05/11/2009)

By Köppe, M.

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Book Id: WPLBN0003995184
Format Type: PDF Article :
File Size: Pages 18
Reproduction Date: 2015

Title: Origin of Aerosol Particles in the Mid-latitude and Subtropical Upper Troposphere and Lowermost Stratosphere from Cluster Analysis of Caribic Data : Volume 9, Issue 21 (05/11/2009)  
Author: Köppe, M.
Volume: Vol. 9, Issue 21
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Schlager, H., Wiedensohler, A., M. Brenninkmeije, C. A., J. Van Velthove, P. F., Köppe, M., Schuck, T.,...Zahn, A. (2009). Origin of Aerosol Particles in the Mid-latitude and Subtropical Upper Troposphere and Lowermost Stratosphere from Cluster Analysis of Caribic Data : Volume 9, Issue 21 (05/11/2009). Retrieved from

Description: Leibniz Institute for Tropospheric Research, Permoserstr. 15, 04318 Leipzig, Germany. The origin of aerosol particles in the upper troposphere and lowermost stratosphere over the Eurasian continent was investigated by applying cluster analysis methods to in situ measured data. Number concentrations of submicrometer aerosol particles and trace gas mixing ratios derived by the CARIBIC (Civil Aircraft for Regular Investigation of the Atmosphere Based on an Instrument Container) measurement system on flights between Germany and South-East Asia were used for this analysis. Four cluster analysis methods were applied to a test data set and their capability of separating the data points into scientifically reasonable clusters was assessed. The best method was applied to seasonal data subsets for summer and winter resulting in five cluster or air mass types: stratosphere, tropopause, free troposphere, high clouds, and boundary layer influenced. Other source clusters, like aircraft emissions could not be resolved in the present data set with the used methods. While the cluster separation works satisfactory well for the summer data, in winter interpretation is more difficult, which is attributed to either different vertical transport pathways or different chemical lifetimes in both seasons. The geographical distribution of the clusters together with histograms for nucleation and Aitken mode particles within each cluster are presented. Aitken mode particle number concentrations show a clear vertical gradient with the lowest values in the lowermost stratosphere (750–2820 particles/cm3 STP, minimum of the two 25% – and maximum of the two 75%-percentiles of both seasons) and the highest values for the boundary-layer-influenced air (4290–22 760 particles/cm3 STP). Nucleation mode particles are also highest in the boundary-layer-influenced air (1260–29 500 particles/cm3 STP), but are lowest in the free troposphere (0–450 particles/cm3 STP). The given submicrometer particle number concentrations represent the first large-scale seasonal data sets for the upper troposphere and lowermost stratosphere over the Eurasian continent.

Origin of aerosol particles in the mid-latitude and subtropical upper troposphere and lowermost stratosphere from cluster analysis of CARIBIC data

Backhaus, K., Erichson, B., Plinke, W. and Weiber, R.: Multivariate Analysemethoden, 11th edition, Springer, Berlin, 830 pp., 2006.; Bell, N., Koch, D., and Shindell, D. T.: Impacts of chemical-aerosol coupling on tropospheric ozone and sulfate simulations in a general circulation model, J. Geophys. Res., 110, D14305, doi:10.1029/2004JD005538, 2005.; Borchi, F. and Marenco, A.: Discrimination of air masses near the extratropical tropopause by multivariate analyses from MOZAIC data, Atmos. Environ., 36, 1123–1135, 2002.; Borchi, F., Oikonomou, E., and Marenco, A.: Extratropical case study of stratosphere-troposphere exchange using multivariate analyses from MOZAIC aircraft data, Atmos. Environ., 39, 6537–6549, 2005.; Brenninkmeijer, C. A. M.:, last access: April 2009.; Brenninkmeijer, C. A. M., Crutzen, P. J. , Fischer, H., Güsten, H., Hans, W., Heinrich, G., Heintzenberg, J., Hermann, M., Immelmann, T., Kersting, D., Maiss, M., Nolle, M., Pitscheider, A., Pohlkamp, H., Scharffe, D., Specht, K., and Wiedensohler, A.: CARIBIC civil aircraft for global measurement of trace gases and aerosols in the tropopause region, J. Atmos. Ocean. Tech., 16, 1373–1383, 1999.; Brosius, F.: SPSS 14, Das mitp-Standardwerk, 1st edition, Mitp-Verlag, Bonn, 1056 pp., 2006.; de Gouw, J. A., Warneke, C., Parrish, D. D., Holloway, J. S., Trainer, M., and Fehsenfeld, F. C.: Emission sources and ocean uptake of acetonitrile (CH3CN) in the atmosphere, J. Geophys. Res., 108, 4329, doi:10.1029/2002JD002897, 2003.; Brenninkmeijer, C. A. M., Crutzen, P., Boumard, F., Dauer, T., Dix, B., Ebinghaus, R., Filippi, D., Fischer, H., Franke, H., Frie{ß}, U., Heintzenberg, J., Helleis, F., Hermann, M., Kock, H. H., Koeppel, C., Lelieveld, J., Leuenberger, M., Martinsson, B. G., Miemczyk, S., Moret, H. P., Nguyen, H. N., Nyfeler, P., Oram, D., O'Sullivan, D., Penkett, S., Platt, U., Pupek, M., Ramonet, M., Randa, B., Reichelt, M., Rhee, T. S., Rohwer, J., Rosenfeld, K., Scharffe, D., Schlager, H., Schumann, U., Slemr, F., Sprung, D., Stock, P., Thaler, R., Valentino, F., van Velthoven, P., Waibel, A., Wandel, A., Waschitschek, K., Wiedensohler, A., Xueref-Remy, I., Zahn, A., Zech, U., and Ziereis, H.: Civil Aircraft for the regular investigation of the atmosphere based on an instrumented container: The new CARIBIC system, Atmos. Chem. Phys., 7, 4953-4976, 2007.; de Gouw, J. A., Warneke, C., Stohl, A., Wollny, A. G., Brock, C. A., Cooper, O. R., Holloway, J. S., Trainer, M., Fehsenfeld, F. C., Atlas, E. L., Donnelly, S. G., Stroud, V., and Lueb, A.: Volatile organic compounds composition of merged and aged forest fire plumes from Alaska and western Canada, J. Geophys. Res., 110, D10303, doi:10.1029/2005JD006175, 2006.; de Reus, M., Ström, J., Kulmala, M., Pirjola, L., Lelieveld, J., Schiller, C., and Zöger, M.: Airborne aerosol measurements in the tropopause region and the dependence of new particle formation on preexisting particle number concentration, J. Geophys. Res., 103, 31255–31263, 1998.; de Reus, M., Ström, J., Hoor, P., Lelieveld, J., and Schiller, C.: Particle production in the lowermost stratosphere by convective lifting of the tropopause, J. Geophys. Res., 104, 23935–23940, 1999.; Dorling, S. R. and Davis, T. D.: Extending cluster analysis – synoptic meteorology links to characterise chemical climates at six northwest European monitoring stations, Atmos. Environ., 29(2), 145–167, 1995.; Ekman, A. M. L., Wang, C., Ström, J., and Krejci, R.: Explicit simulation of aerosol physics in a cloud-resolving model: Aerosol transport and processing in the free troposphere, J. Atmos. Sci., 63, 682–696, 2006.; Fine, S. S.:, last access: February 2008.; Garrett, T. J., Avey, J., Palmer, P. I., Stohl, A., Neuman, J. A., Brock, C. A., Ryerson, T. B.


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