ASR Advances in Science and Research ASR Adv. Sci. Res. 1992-0636 Copernicus Publications Göttingen, Germany 10.5194/asr-4-115-2010 MEGAPOLI: concept of multi-scale modelling of megacity impact on air quality and climate Baklanov A. 1 Lawrence M. 2 Pandis S. 3 Mahura A. 1 Finardi S. 4 Moussiopoulos N. 5 Beekmann M. 6 7 Laj P. 6 Gomes L. 6 Jaffrezo J.-L. 6 Borbon A. 7 Coll I. 7 Gros V. 8 Sciare J. 8 Kukkonen J. 9 Galmarini S. 10 Giorgi F. 11 Grimmond S. 12 Esau I. 13 Stohl A. 14 Denby B. 14 Wagner T. 2 Butler T. 2 Baltensperger U. 15 Builtjes P. 16 van den Hout D. 16 van der Gon H. D. 16 Collins B. 17 Schluenzen H. 18 Kulmala M. 19 Zilitinkevich S. 19 Sokhi R. 20 Friedrich R. 21 Theloke J. 21 Kummer U. 21 Jalkinen L. 22 Halenka T. 23 Wiedensholer A. 24 Pyle J. 25 Rossow W. B. 25 Danish Meteorological Institute (DMI), Lyngbyvej 100, 2100, Copenhagen, Denmark Max Planck Institute for Chemistry (MPIC), Germany Foundation for Research and Technology (FORTH), Hellas, University of Patras, Greece ARIANET Consulting, Italy Aristotle University Thessaloniki (AUTH), Greece Centre National de Recherche Scientifique (CNRS), France Laboratory Inter-universitaire des Systèmes Atmosphériques (LISA), France Laboratoire des Sciences du Climat et de l'Environnement (LSCE), France Finnish Meteorological Institute (FMI), Finland Joint Research Center (JRC), Ispra, Italy International Centre for Theoretical Physics (ICTP), Italy King's College London (KCL), UK Nansen Environmental and Remote Sensing Center (NERSC), Norway Norwegian Institute for Air Research (NILU), Norway Paul Scherrer Institute (PSI), Switzerland TNO-Built Environment and Geosciences, The Netherlands UK MetOffice (MetO), UK University of Hamburg (UHam), Hamburg, Germany University of Helsinki (UHel), Finland University of Hertfordshire – Centre for Atmospheric & Instrumentation Research (UH-CAIR), UK University of Stuttgart (UStutt), Germany World Meteorological Organization (WMO), Switzerland Charles University Prague (CUNI), Czech Republic Institute of Tropospheric Research (IfT), Germany Centre for Atmospheric Science, University of Cambridge (UCam), UK 26 11 2010 4 1 115 120 Copyright: © 2010 A. Baklanov et al. 2010 This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/3.0/ This article is available from https://asr.copernicus.org/articles/4/115/2010/asr-4-115-2010.html The full text article is available as a PDF file from https://asr.copernicus.org/articles/4/115/2010/asr-4-115-2010.pdf

The EU FP7 Project MEGAPOLI: "Megacities: Emissions, urban, regional and Global Atmospheric POLlution and climate effects, and Integrated tools for assessment and mitigation" (<a href="http://megapoli.info" target="_blank">http://megapoli.info</a>) brings together leading European research groups, state-of-the-art scientific tools and key players from non-European countries to investigate the interactions among megacities, air quality and climate. MEGAPOLI bridges the spatial and temporal scales that connect local emissions, air quality and weather with global atmospheric chemistry and climate. The suggested concept of multi-scale integrated modelling of megacity impact on air quality and climate and vice versa is discussed in the paper. It requires considering different spatial and temporal dimensions: time scales from seconds and hours (to understand the interaction mechanisms) up to years and decades (to consider the climate effects); spatial resolutions: with model down- and up-scaling from street- to global-scale; and two-way interactions between meteorological and chemical processes.

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