ACPD Atmospheric Chemistry and Physics Discussions ACPD 1680-7375 Copernicus GmbH Göttingen, Germany 10.5194/acpd-9-16441-2009 Aerosol distribution around Svalbard during intense easterly winds Dörnbrack A. 1 Stachlewska I. S. 2 3 Ritter C. 3 Neuber R. 3 DLR Oberpfaffenhofen, Institut für Physik der Atmosphäre, 82230 Wessling, Germany Institute of Geophysics, Faculty of Physics, University of Warsaw, Pasteura 7, 02-093 Warsaw, Poland Alfred-Wegener Institut für Polar- und Meeresforschung (AWI), Forschungsstelle Potsdam, Telegraphenberg 43A, 14473 Potsdam, Germany 05 08 2009 9 4 16441 16481 This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This article is available from http://www.atmos-chem-phys-discuss.net/9/16441/2009/acpd-9-16441-2009.html The full text article is available as a PDF file from http://www.atmos-chem-phys-discuss.net/9/16441/2009/acpd-9-16441-2009.pdf

This paper reports on backscatter and depolarization measurements by an airborne lidar in the Arctic during the ASTAR 2004 campaign. A unique weather situation facilitated the observation of the aerosol concentration under strongly forced atmospheric conditions. The vigorous easterly winds distorted the flow past Svalbard in such a way that unique mesoscale features were visible in the remote-sensing observations. Mesoscale numerical modelling was applied to identify the sources of the aerosol plumes and to explain the observed patterns.

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