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Source Identification and Airborne Chemical Characterisation of Aerosol Pollution from Long-range Transport Over Greenland During Polarcat Summer Campaign 2008 : Volume 11, Issue 3 (04/03/2011)

By Schmale, J.

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Book Id: WPLBN0003995959
Format Type: PDF Article :
File Size: Pages 66
Reproduction Date: 2015

Title: Source Identification and Airborne Chemical Characterisation of Aerosol Pollution from Long-range Transport Over Greenland During Polarcat Summer Campaign 2008 : Volume 11, Issue 3 (04/03/2011)  
Author: Schmale, J.
Volume: Vol. 11, Issue 3
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Schwarzenboeck, A., Schmale, J., Arnold, S. R., Sodemann, H., Schneider, J., Quennehen, B.,...Hamburger, T. (2011). Source Identification and Airborne Chemical Characterisation of Aerosol Pollution from Long-range Transport Over Greenland During Polarcat Summer Campaign 2008 : Volume 11, Issue 3 (04/03/2011). Retrieved from

Description: Max Planck Institute for Chemistry, Mainz, Germany. We deployed an aerosol mass spectrometer during the POLARCAT (Polar Study using Aircraft, Remote Sensing, Surface Measurements and Models, of Climate, Chemistry, Aerosols, and Transport) summer campaign in Greenland in June/July 2008 on the research aircraft ATR-42. Online size resolved chemical composition data of submicron aerosol were collected up to 7.6 km altitude in the region 60 to 71° N and 40 to 60° W. Biomass burning (BB) and fossil fuel combustion (FF) plumes originating from North America, Asia, Siberia and Europe were sampled. Transport pathways of detected plumes included advection below 700 hPa, air mass uplifting in warm conveyor belts, and high altitude transport in the upper troposphere. By means of the Lagrangian particle dispersion model FLEXPART, trace gas analysis of O3 and CO, particle size distributions and aerosol chemical composition 48 pollution events were identified and classified into five chemically distinct categories. Aerosol from North American BB consisted of 22% particulate sulphate, while with increasing anthropogenic and Asian influence aerosol was composed of up to 37% sulphate category mean value. Overall, it was found that the organic matter fraction was larger (85%) in pollution plumes than for background conditions (71%). Despite different source regions and emission types the particle oxygen to carbon ratio of all plume classes was around 1 indicating low-volatile highly oxygenated aerosol. Also the volume size distributions were rather similar for all sampled plume categories. This can be explained by the relatively long transport times of roughly one week from North America and two weeks from Asia/Siberia. The derived aerosol lifetime for North American emissions was about 9 ± 2 days.

Source identification and airborne chemical characterisation of aerosol pollution from long-range transport over Greenland during POLARCAT summer campaign 2008

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