Advances in Science and Research www.adv-sci-res.net 1992-0628 1992-0636 2 7th EMS Annual Meeting and 8th European Conference on Applications of Meteorology 2007 2008 10.5194/asr-2-47-2008 http://www.adv-sci-res.net/2/47/2008/ http://www.adv-sci-res.net/2/47/2008/asr-2-47-2008.html http://www.adv-sci-res.net/2/47/2008/asr-2-47-2008.pdf 47 52 2008-05-13 Air mass origin and its influence over the aerosol size distribution: a study in SE Spain M. Cabello J. A. G. Orza ja.garcia@umh.es V. Galiano SCOLAb, Física Aplicada, Universidad Miguel Hernández, Elche, Spain A k-means cluster analysis of 96 hour trajectories arriving in Southeast (SE) Spain at 3000, 1500 and 500 m for the 7-year period 2000–2006 has been performed to identify and describe the main flows arriving at the study area. The dependence of the aerosol size distribution on the air mass origin has been studied by using non-parametric statistics. There are statistically significant differences on aerosol size distribution and meteorological variables at surface level according to the identified clusters. Azor\'\in-Molina, C. and Mart\'\in-Vide, J.: Methodological approach to the study of the daily persistence of the sea breeze in Alicante (Spain), Atmósfera, 20, 57–81, 2007. Blanco, A., Dee Tomasi, F., Filippo, E., Manno, D., Perrone, M. R., Serra, A., Tafuro, A. M., and Tepore, A.: Characterization of African dust over southern Italy, Atmos. Chem. Phys., 3, 2147–2159, 2003. Brankov, E., Rao S. T., and Porter, P. S.: A trajectory-clustering-correlation methodology for examining the long-range transport of air pollutants, Atmos Environ., 32, 1525–1534, 1998. Cape, J. N., Methven, J., and Hudson, L. E.: The use of trajectory cluster analysis to interpret trace gas measurements at Mace Head, Ireland, Atmos Environ., 34, 3651–3663, 2000. Chan, T. W. and Mozurkewich, M.: Simplified representation of atmospheric aerosol size distributions using absolute principal component analysis, Atmos. Chem. Phys., 7, 875–886, 2007. Dorling, S. R., Davies, T. D., and Pierce, C. E.: Cluster analysis: A technique for estimating the synoptic meteorological controls on air and precipitation chemistry-Method and applications, Atmos Environ., 26, 2575–2581, 1992. Draxler, R. R. and Rolph, G. D.: HYSPLIT Model access via NOAA ARL READY Website (http://www.arl.noaa.gov/ready/hysplit4.html), NOAA Air Resources Laboratory, 2003. Jorba, O., Pérez, C., Rocadenbosch, F., and Baldasano, J. M.: Cluster analysis of 4-day back trajectories arriving in the Barcelona Area, Spain, from 1997 to 2002, J Appl Meteorol., 43, 887–901, 2004. Lyamani, H., Olmo, F. J., and Alados-Arboledas, L.: Saharan dust outbreak over southeastern Spain as detected by sun photometer, Atmos Environ., 39, 7276–7284, 2005. Mattis, I.: Compilation of trajectory data. EARLINET: A European Aerosol Research Lidar Network to Establish an Aerosol Climatology, Scientific Report for the period Feb. 2000 to Jan. 2001, J Bösenberg, Max Planck Inst. für Meteorologie, 26–29, 2001, available at: http://lidarb.dkrz.de/earlinet/scirep1.pdf, 2005. Millán, M. M., Salvador, R., Mantilla, E., and Kallos, G.: Photo-oxidant dynamics in the Mediterranean basin in summer: results from European research projects, J Geophys Res., 102, 8811–8823, 1997. Pugatshova, A., Reinart, A., and Tamm, E.: Features of the multimodal aerosol size distribution depending on the air mass origin in the Baltic region, Atmos Environ., 41, 4408–4422, 2007. Rodr\'\iguez, S., Querol, X., Alastuey, A., Kallos, G., and Kakakliagou, O.: Saharan dust contributions to PM10 and TSP levels in Southern and Eastern Spain, Atmos Environ., 35, 2433–2447, 2001. Rodr\'\iguez, S., Querol, X., Alastuey, A., Viana, M. M., and Mantilla, E.: Events affecting levels and seasonal evolution of airborne particulate matter concentrations in the Western Mediterranean, Environ Sci Technol., 37, 216–222, 2003. Salvador, P., Art\'\iñano, B., Alonso, D. G., Querol, X., and Alastuey, A.: Identification and characterisation of sources of PM10 in Madrid (Spain) by statistical methods, Atmos Environ., 38, 435–447, 2004. Stohl, A.: Computation, accuracy and applications of trajectories – a review and bibliography, Atmos Environ., 32, 947–966, 1998. Stohl, A., Eckhardt, S., Forster, C., James, P., Spichtinger, N., and Seibert, P.: A replacement for simple back trajectory calculations in the interpretation of atmospheric trace substance measurements, Atmos Environ., 36, 4635–4648, 2002.