New particle formation in the Svalbard region 2006–2015

摘要: Abstract. Events of new particle formation (NPF) were analyzed in a 10-year data set hourly size distributions recorded on Mt. Zeppelin, Spitsbergen, Svalbard. Three different types NPF events identified through objective search algorithms. The first and simplest algorithm utilizes short-term increases concentrations below 25 nm (PCT (percentiles) events). second one builds the growth sub-50 nm diameter median (DGR (diameter growth) events) is most closely related to classical banana type event. third complex, multiple-size approach identifying hypothesis suggesting concurrent production polymer gel particles at several sizes ca. 60 nm (MEV (multi-size As general conclusion, we can state that are summer phenomenon not Arctic haze, which late winter early spring feature. occurrence appears be somewhat sensitive available precipitation. seasonal distribution solar flux suggests some photochemical control may affect marine biological processes generating precursors and/or atmospheric generate condensable vapors from precursor gases. Notably, biogenic methanesulfonate (MSA) follows although it peaks before maxima occurrence. A host ancillary findings point varying rather complex source processes. potential regions for all appear restricted marginal-ice open-water areas between northeastern Greenland eastern Depending conditions, yet clarified become visible as short bursts around 20 nm events), longer involving condensation or extended with elevated 100 nm later than MSA DGR, particular MEV events, reach into fall open, warm, biologically active waters Consequently, simple model describe total number based sea surface temperature, representing environmental conditions activity sink, controlling balance nucleation their condensational growth. Based sparse knowledge about cycle gel-forming microorganisms factors, hypothesize DGR and, more so, reflect phytoplankton.