Aerosol size distributions at Syowa Station and Dome Fuji Station, Antarctica

Simultaneous observations of the aerosol size distribution for diameters of 0.003-5.0 μm were performed at Syowa Station (69゜00′S, 39゜35′E, 15 m a.s.l.) and Dome Fuji Station (77゜19′S, 39゜42′E, 3810 m a.s.l.) in Antarctica from February 1997 to January 1998. Size distributions show composites of a s...

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Bibliographic Details
Main Authors: Masahiko Hayashi, Yasunori Matsumoto, Naohiko Hirasawa, Takashi Yamanouchi, Yasunobu Iwasaka
Format: Article in Journal/Newspaper
Language:English
Japanese
Published: National Institute of Polar Research 2010
Subjects:
Online Access:https://doi.org/10.15094/00009571
https://doaj.org/article/a8ce0961d02046ef82d07cf3a2e40857
Description
Summary:Simultaneous observations of the aerosol size distribution for diameters of 0.003-5.0 μm were performed at Syowa Station (69゜00′S, 39゜35′E, 15 m a.s.l.) and Dome Fuji Station (77゜19′S, 39゜42′E, 3810 m a.s.l.) in Antarctica from February 1997 to January 1998. Size distributions show composites of a small-Aitken mode (less than 0.05 μm in diameter), a large-Aitken mode (0.05-0.3 μm in diameter), and a large giant particle mode (larger than 0.3 μm in diameter). Concentrations of small and large Aitken modes were high in summer and low in winter. On the other hand, concentrations of large giant particle mode were low in summer and high in winter. The high and or low concentration events for one or a few days in whole size range were observed especially in winter. High concentration events in small Aitken mode with the low concentrations in diameter of 0.07-5.0 μm were also observed at Dome Fuji Station in spring. Meteorological conditions during the events at Dome Fuji Station were different from those at at Syowa station.