Physical and chemical properties of pollution aerosol particles transported from North America to Greenland as measured during the POLARCAT summer campaign ...

• Main Authors: Quennehen, B., Schwarzenboeck, A., Schmale, Julia, Schneider, Johannes, Sodemann, Harald, Stohl, Andreas, Ancellet, Gerard, Crumeyrolle, S., Law, K.S.
• Format: Article in Journal/Newspaper
• Language: English
• Published: ETH Zurich 2011
• Subjects: Greenland
• Online Access: https://dx.doi.org/10.3929/ethz-b-000043889; http://hdl.handle.net/20.500.11850/43889

Within the framework of the POLARCAT-France campaign, aerosol physical, chemical and optical properties over Greenland were measured onboard the French ATR-42 research aircraft. The origins of CO excess peaks detected in the aircraft measurements then have been identified through FLEXPART simulations. The study presented here focuses particularly on the characterization of air masses transported from the North American continent to Greenland. Air masses that picked up emissions from Canadian boreal forest fires as well as from the cities on the American east coast were identified and selected for a detailed study. Measurements of CO concentrations, aerosol chemical composition, aerosol number size distributions, aerosol volume volatile fractions and aerosol light absorption (mainly from black carbon) are used in order to study the relationship between CO enhancement (ΔCO), aerosol particle concentrations and number size distributions. Aerosol number size distributions (normalised with their respective ΔCO) ... : Atmospheric Chemistry and Physics, 11 (21) ...