Direct sampling of atmospheric aerosol particles during Arctic Airborne Measurement Program (AAMP 98)

• Main Authors: Keiichiro Hara, Yasunobu Iwasaka, Yayoi Inomata, Kazuo Osada, Katsuji Matsunaga, Sadamu Yamagata, Masahiro Nagatani, Hiroshi Nakata
• Format: Article in Journal/Newspaper
• Language: English
• Published: National Institute of Polar Research 2002
• Subjects: geo; envir; Arctic
• Online Access: https://doi.org/10.15094/00009215; https://doaj.org/article/5623d7ec7e274593a1a0bcc4af8e1186

In order to know the morphology and mixing state of atmospheric aerosol particles in the spring Arctic atmosphere, direct sampling of aerosol particles was carried out using an aerosol impactor system during the Arctic Airborne Measurement Program (AAMP 98). Aerosol samples were observed with a scanning electron microscope and analyzed with an energy-dispersive X-ray spectrometer. Aerosol particles with clear satellite structure due to sulfuric acid droplets were observed in samples collected in the lower stratosphere and free troposphere. On the other hands, aerosol particles with crystal and satellite structure due to droplets of sea salt particles were observed in the boundary layer.