SPECIAL MEASUREMENTS AT NY ÅLESUND: PHYSICAL AND CHEMICAL PROPERTIES OF THE ARCTIC AEROSOL.

Physical and chemical properties of the arctic aerosol at Ny Ålesund, Spitsbergen, have been studied during the arctic winter and summer seasons. Size-differentiated chemical composition of aerosols has been used to assess the origin(s) of the winter and summer aerosol. Concurrently observed physical properties of the aerosol imply both natural production and long-range transport in summertime.