Young, G, Jones, HM, Darbyshire, E et al. (6 more authors) (2016) Size-segregated compositional analysis of aerosol particles collected in the European Arctic during the ACCACIA campaign. Atmospheric Chemistry and Physics, 16 (6). pp. 4063-4079. ISSN 1680-7316
Abstract
Single-particle compositional analysis of filter samples collected on board the Facility for Airborne Atmospheric Measurements (FAAM) BAe-146 aircraft is presented for six flights during the springtime Aerosol–Cloud Coupling and Climate Interactions in the Arctic (ACCACIA) campaign (March–April 2013). Scanning electron microscopy was utilised to derive size-segregated particle compositions and size distributions, and these were compared to corresponding data from wing-mounted optical particle counters. Reasonable agreement between the calculated number size distributions was found. Significant variability in composition was observed, with differing external and internal mixing identified, between air mass trajectory cases based on HYbrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) analyses. Dominant particle classes were silicate-based dusts and sea salts, with particles notably rich in K and Ca detected in one case. Source regions varied from the Arctic Ocean and Greenland through to northern Russia and the European continent. Good agreement between the back trajectories was mirrored by comparable compositional trends between samples. Silicate dusts were identified in all cases, and the elemental composition of the dust was consistent for all samples except one. It is hypothesised that long-range, high-altitude transport was primarily responsible for this dust, with likely sources including the Asian arid regions.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Author(s) 2016. This work is distributed under the Creative Commons Attribution 3.0 License. |
Keywords: | size-segregated particle compositions; Aerosol size distribution; Arctic; aircraft |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst for Climate & Atmos Science (ICAS) (Leeds) |
Funding Information: | Funder Grant number NERC NE/K004417/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 13 May 2016 10:43 |
Last Modified: | 13 May 2016 10:43 |
Published Version: | http://dx.doi.org/10.5194/acp-16-4063-2016 |
Status: | Published |
Publisher: | European Geosciences Union (EGU) |
Identification Number: | 10.5194/acp-16-4063-2016 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:97274 |