Research Activity in Ny-Ă…lesund 2011-2012 Besides, fourteen 8-hour (corresponding to air volumes of about 6-8 m3) TPS samplings were carried out at fixed heights (selected on the basis of OPC and ozone profiles), in order to obtain a chemical characterization of the aerosol particles (ionic composition by Ion Chromatography and geochemical composition by SEM-EDS analysis). Finally, a prototype of a meteorological gondola, able to transmit on-line (169 MHz) to the ground the acquired meteo-data, was tested. During the 2012 summer campaign, some transport events of ship emissions from the Ny-Ă…lesund harbor occurred. During such events, particle size distributions, characterized by high concentrations of sub-micrometric particles and high atmospheric concentrations of black carbon from the ship plumes, were recorded (figure 7).
SEM-EDS measurements of single aerosol particles During the 2011 summer campaign, 4 size-segregated aerosol samplings (in the period 18-29 April) were carried out at the Gruvebadet site for geochemical analysis by SEM-EDS (Scanning Electron Microscopy, Energy Dispersive X-ray Spectroscopy). Samplings were performed from the Gruvebadet roof (4-stage impactor) and by the tethered balloon (2-stage impactor).
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