Physics
Scientific paper
Aug 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3115102z&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 15, CiteID L15102
Physics
13
Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801), Atmospheric Composition And Structure: Pollution-Urban And Regional (0305), Atmospheric Composition And Structure: Troposphere-Constituent Transport And Chemistry, Mineral Physics: X Ray, Neutron, And Electron Spectroscopy And Diffraction
Scientific paper
Water dialysis was applied to remove water-soluble components in the individual Asian dust particles collected in southwestern Japan. Size and composition of the particles before and after the dialysis were compared. It was found that the post-dialysis number-size distributions of mineral-sea salt mixture particles shifted toward smaller ranges compared to their pre-dialysis distributions and the more sea salt the particles contained the larger the shift of their distribution was, while the dialysis did not cause apparent changes in size or morphology of particles in which sea salt was not identified. Estimation from total detected dust particles revealed that mixing with sea salt had caused their size distributions to shift to larger ranges approximately by 0.4 ~ 0.8 μm. Hence, the interaction of dust particles and sea salt is likely an important process in size and composition changes of dust particles during their long range transport, consequently affecting mass transformation and radiation transfer in the atmosphere as well as the sedimental flux of mineral dust to sea surface.
Iwasaka Yasunobu
Zhang Daizhou
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