Atmos. Chem. Phys. Discuss., 8, 19415-19455, 2008
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This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
Introduction: European Integrated project on Aerosol Cloud Climate and Air Quality interactions (EUCAARI) – integrating aerosol research from nano to global scales
M. Kulmala1, A. Asmi1, H. K. Lappalainen1,2, K. S. Carslaw3, U. Pöschl4, U. Baltensperger5, Ø. Hov6, J.-L. Brenquier7, S. N. Pandis8, M. C. Facchini9, H.-C. Hansson10, A. Wiedensohler11, and C. D. O'Dowd12
1University of Helsinki, Department of Physical Sciences, 00014 Helsinki, Finland
2Finnish Meteorological Institute, Research and Development, 00101 Helsinki, Finland
3University of Leeds, School of Earth and Environment, Leeds LS2 9JT, UK
4Max Planck Institute for Chemistry, Mainz, Germany
5Paul Scherrer Institut, Villigen PSI, Switzerland
6EMEP Meteorological Synthesizing Center West (MSC-W), Norwegian Meteorological Institute, 0313 Oslo, Norway
7French Meteorological Service, 31057 Toulouse, France
8Institute of Chemical Engineering and High Temperature Chemical Processes (ICE-HT), Foundation for Research and Technology Hellas (FORTH), Patras, 26504, Greece
9Institute of Atmospheric Sciences and Climate (ISAC), National Research Council (CNR), Bologna, Italy
10Stockholm University, Department of Applied Environmental Science, 10691 Stockholm, Sweden
11Leibniz Institute for Tropospheric Research, 04318 Leipzig, Germany
12School of Physics & Centre for Climate and Air Pollution Studies, Environmental Change Institute, National University of Ireland, Galway, Ireland

Abstract. The European Aerosol Cloud Climate and Air Quality Interactions project EUCAARI is an EU Research Framework 6 integrated project focusing on understanding the interactions of climate and air pollution. EUCAARI works in an integrative and multidisciplinary way from nano- to global scale. EUCAARI brings together several leading European research groups, state-of-the-art infrastructure and some key scientists from third countries to investigate the role of aerosol on climate and air quality. Altogether 48 partners from 25 countries are participating in EUCAARI. During the first 16 months EUCAARI has built operational systems e.g. established pan-European measurement network for Lagrangian studies and four stations in developing countries. Also an improved understanding of nanoscale processes (like nucleation) has been implemented in global models. Here we present the research methods, organisation, operations and first results of EUCAARI.

Citation: Kulmala, M., Asmi, A., Lappalainen, H. K., Carslaw, K. S., Pöschl, U., Baltensperger, U., Hov, Ø., Brenquier, J.-L., Pandis, S. N., Facchini, M. C., Hansson, H.-C., Wiedensohler, A., and O'Dowd, C. D.: Introduction: European Integrated project on Aerosol Cloud Climate and Air Quality interactions (EUCAARI) – integrating aerosol research from nano to global scales, Atmos. Chem. Phys. Discuss., 8, 19415-19455, doi:10.5194/acpd-8-19415-2008, 2008.
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