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    Characterization of Aerosol Type Over East Asia by 4.4 km MISR Product: First Insight and General Performance

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    Characterization of Aerosol Type Over East Asia by 4.4 km MISR Product: First Insight and General Performance (31.89Mb)
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    https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019JD031909
    Permanent Link
    https://doi.org/10.1029/2019JD031909
    http://hdl.handle.net/11603/19369
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    • UMBC Faculty Collection
    • UMBC Joint Center for Earth Systems Technology (JCET)
    • UMBC Physics Department
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    Author/Creator
    Tao, Minghui
    Wang, Jun
    Li, Rong
    Chen, Liangfu
    Xu, Xiaoguang
    Wang, Lunche
    Tao, Jinhua
    Wang, Zifeng
    Xiang, Juan
    Date
    2020-06-01
    Type of Work
    16 pages
    Text
    journal articles
    Citation of Original Publication
    Tao, Minghui; Wang, Jun; Li, Rong; Chen, Liangfu; Xu, Xiaoguang; Wang, Lunche; Tao, Jinhua; Wang, Zifeng; Xiang, Juan; Characterization of Aerosol Type Over East Asia by 4.4 km MISR Product: First Insight and General Performance; JGR Atmospheres 125,12 (2020); https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019JD031909
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    This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
    ©2020. American Geophysical Union. All Rights Reserved
    Access to this item will begin on 2020-12-01
    Abstract
    The lack of aerosol type information has largely hindered satellite products from further applications such as constraining model simulations and quantifying aerosol climate effects. The recent Version (V) 23 Multi‐angle Imaging Spectroradiometer (MISR) aerosol products with an enhanced spatial resolution at 4.4 km enable an unprecedented chance to explore aerosol types and associated processes in the regional scale. Here we provide a comprehensive insight into the characterization of MISR aerosol optical and microphysical properties, as well as their performance, over East Asia. Ground validation shows a remarkable improvement in the accuracy of V23 MISR aerosol optical depth (AOD) with ~80% of its retrieval bias within ±(0.05 + 20%AODAERONET). However, an underestimation of MISR AOD is still prevalent in the high‐AOD (>0.6) conditions, due to the surface‐atmosphere separation problem and insufficient absorbing aerosol mixtures being selected. MISR AOD of different size bins agrees well with AErosol RObotic NETwork (AERONET) results, demonstrating an evident advantage in discriminating natural dust from anthropogenic particles. Although MISR nonspherical and absorbing retrievals display a consistent variation with the AERONET inversions, their component AODs have a poor reliability over East Asia due to the inappropriate aerosol component models or their mixtures as in V22. In particular, the most striking problem is the sparse and discrete MISR absorbing retrievals with spatial discontinuity. Generally, the high‐resolution V23 MISR products exhibit a great potential in characterizing the regional variations of aerosol type, which can be further refined by considering the prior aerosol knowledge over East Asia.


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    Albin O. Kuhn Library & Gallery
    University of Maryland, Baltimore County
    1000 Hilltop Circle
    Baltimore, MD 21250
    www.umbc.edu/scholarworks

    Contact information:
    Email: scholarworks-group@umbc.edu
    Phone: 410-455-3021


    If you wish to submit a copyright complaint or withdrawal request, please email mdsoar-help@umd.edu.