Consistency of the aerosol type classification from satellite remote sensing during the Atmospheric Brown Cloud-East Asia Regional Experiment campaign

Jhoon Kim, Jaehwa Lee, Hee Choon Lee, Akiko Higurashi, Toshihiko Takemura, Chul Han Song

    研究成果: ジャーナルへの寄稿学術誌査読

    85 被引用数 (Scopus)

    抄録

    The Atmospheric Brown Cloud-East Asia Regional Experiment (ABC-EAREX) was conducted under the UNEP/ABC-Asia project to intercompare the aerosol and gas measurements in springtime from various instruments from late February to April 2005 at the Gosan Supersite on Jeju Island, Korea. Satellite instruments such as the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Ozone Monitoring Instrument (OMI) provide a large-scale regional view of the aerosol during the ABC-EAREX period. This study shows the temporal and spatial distribution of four major aerosol types (dust, carbonaceous, sea salt and sulfate) retrieved by MODIS-OMI Algorithm and Four-Channel Algorithm utilizing data from MODIS and OMI over east Asia during the ABC-EAREX campaign. Results from two different retrieval show that a complexity of aerosol types and sources exist over east Asia: Some aerosols are emitted while others are transported. Nevertheless, the results show reasonable consistency in the distribution according to aerosol type. The agreement of aerosol type classification for each aerosol type ranges from 32% to 81% depending on the type. These results were compared with the results from a three-dimensional aerosol transport radiation model, SPRINTARS. Dust type aerosol is usually found to be mixed with carbonaceous type aerosol. It implies that the dust type aerosol is loaded and transported with polluted air mass. The evidence that polluted air masses in the continent can be transported long distance is also captured; that is, sea salt type mixed with the sulfate aerosol is detected over a remote ocean.

    本文言語英語
    論文番号D22S33
    ジャーナルJournal of Geophysical Research Atmospheres
    112
    22
    DOI
    出版ステータス出版済み - 11月 27 2007

    !!!All Science Journal Classification (ASJC) codes

    • 地球物理学
    • 海洋学
    • 林業
    • 水圏科学
    • 生態学
    • 水の科学と技術
    • 土壌科学
    • 地球化学および岩石学
    • 地表過程
    • 大気科学
    • 宇宙惑星科学
    • 地球惑星科学(その他)
    • 古生物学

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