Title Aerosol distribution around Svalbard during intense easterly winds
Author Dörnbrack, A.; Stachlewska, I.S.; Ritter, C.; Neuber, R.
Author Affil Dörnbrack, A., Deutschen Zentrums für Luft- und Raumfahrt Oberpfaffenhofen, Institut für Physik der Atmosphäre, Wesling, Germany. Other: University of Warsaw, Poland; Alfred-Wegener Institut für Polar- und Meeresforschung, Germany
Source Atmospheric Chemistry and Physics, 10(4), p.1473-1490, . Publisher: Copernicus, Katlenburg-Lindau, International. ISSN: 1680- 7316
Publication Date 2010
Notes In English. Includes appendices; part of special issue no. 151, The Arctic Study of Aerosol, Clouds and Radiation (ASTAR), edited by Garrett, T., Minikin, A., and Wendisch, M., http://www.atmos-chem- phys.net/special_issue151.html; published in Atmospheric Chemistry and Physics Discussions: 5 August 2009, http://www.atmos- chem-phys-discuss.net/9/16441/2009/acpd-9- 16441-2009.html ; accessed in May, 2011. 45 refs. GeoRef Acc. No: 310098
Index Terms aerosols; altitude; atmospheric boundary layer; backscattering; boundary layer; crystals; ice; ice crystals; lasers; lidar; meteorology; radar; remote sensing; temperature; wind (meteorology); Arctic region--Svalbard; Arctic region; atmosphere; boundary conditions; climate forcing; concentration; laser methods; lidar methods; MODIS; numerical models; radar methods; salt water; sea water; Svalbard; troposphere; winds
Abstract 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 mesoscale features were visible in the remote-sensing observations: The formation of a well-mixed aerosol layer inside the Adventdalen and the subsequent thinning of the aerosol plume were observed over the Isfjorden. Additionally, mobilization of sea salt aerosols due to a coastal low-level jet at the northern tip of Svalbard resulted in a sloped boundary layer toward north. Mesoscale numerical modelling was applied to identify the sources of the aerosol particles and to explain the observed patterns.
URL http://www.atmos-chem-phys.net/10/1473/2010/acp-10-1473-2010.pdf
Publication Type journal article
Record ID 65006755