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GEOPHYSICAL RESEARCH LETTERS,
VOL. 35,
L14814,
6 PP., 2008
doi:10.1029/2008GL033733
Occurrence of weak, sub-micron, tropospheric aerosol events at high Arctic latitudes
Centre for Research and Applications in Remote Sensing, Université de Sherbrooke, Sherbrooke, Quebec, Canada
Centre for Research and Applications in Remote Sensing, Université de Sherbrooke, Sherbrooke, Quebec, Canada
Environment Canada, Dorval, Quebec, Canada
Centre for Research and Applications in Remote Sensing, Université de Sherbrooke, Sherbrooke, Quebec, Canada
University of Wisconsin, Madison, Wisconsin, USA
Department of Physics, University of Toronto, Toronto, Ontario, Canada
Centre for Research and Applications in Remote Sensing, Université de Sherbrooke, Sherbrooke, Quebec, Canada
Environment Canada, Toronto, Ontario, Canada
Department of Physics, University of Toronto, Toronto, Ontario, Canada
Department of Physics, University of Toronto, Toronto, Ontario, Canada
Numerous fine mode (sub-micron) aerosol optical events were observed during the summer of 2007 at the High Arctic atmospheric observatory (PEARL) located at Eureka, Nunavut, Canada. Half of these events could be traced to forest fires in southern and eastern Russia and the Northwest Territories of Canada. The most notable findings were that (a) a combination of ground-based measurements (passive sunphotometry, high spectral resolution lidar) could be employed to determine that weak (near sub-visual) fine mode events had occurred, and (b) this data combined with remote sensing imagery products (MODIS, OMI-AI, FLAMBE fire sources), Fourier transform spectroscopy and back trajectories could be employed to identify the smoke events.
Received 27 February 2008; accepted 20 June 2008; published 30 July 2008.
Citation: (2008), Occurrence of weak, sub-micron, tropospheric aerosol events at high Arctic latitudes, Geophys. Res. Lett., 35, L14814, doi:10.1029/2008GL033733.
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