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Distinguishing Between Remote and Local Air Pollution Over Taiwan: An Approach Based on Pollution Homogeneity Analysis

  • Pavel KishchaEmail author
  • Sheng-Hsiang Wang
  • Neng-Huei Lin
  • Arlindo da Silva
  • Tang-Huang Lin
  • Po-Hsiung Lin
  • Gin-Rong Liu
  • Boris Starobinets
  • Pinhas Alpert
Conference paper
Part of the Springer Proceedings in Complexity book series (SPCOM)

Abstract

An analysis of pollution homogeneity has been conducted to distinguish between remote and local pollution which contributes to month to month changes in aerosol optical depth (AOD) over the Taiwan area. This was carried out using both AERONET measurements at six monitoring sites in Taiwan and NASA MERRA-2 reanalysis, over the 15-year period from 2002 to 2017. As a measure of air pollution homogeneity we used the AOD standard deviation: the more homogeneous the spatial distribution of air pollution, the lower the AOD standard deviation is. Using this approach, we found that, over Taiwan, in autumn, inhomogeneous local air pollution is predominant, while, in spring, homogeneous remote air pollution from south-east Asia dominates. In autumn, when inhomogeneous aerosols from local sources dominate, the AOD standard deviation is essentially higher than that in spring, when homogeneous aerosols from remote sources dominate. Our approach allowed us to distinguish between homogeneous remote and inhomogeneous local sulfate air pollution of similar optical properties and chemical composition.

Keywords

Taiwan MERRA-2 reanalysis AERONET Local pollution Remote pollution 

References

  1. 1.
    V. Buchard, A. Randles, A.M. da Silva, A. Darmenov, P.R. Colarco, R. Ggovindaraju, R. Ferrare, J. Hair, A.J. Beyersdorf, L.D. Ziemba, H. Yu, The MERRA-2 Aerosol Reanalysis, 1980 Onward. Part II: evaluation and case studies. J. Clim. 30, 6851–6872 (2017).  https://doi.org/10.1175/JCLI-D-16-0613.1CrossRefGoogle Scholar
  2. 2.
    P. Kishcha, S.-H. Wang, N.-H. Lin, A.M. da Silva, T.-H. Lin, P.-H. Lin, G.-R. Liu, B. Starobinets, P. Alpert, Differentiating between local and remote pollution over Taiwan. Aerosol Air Qual. Res. 18, 1788–1798 (2018).  https://doi.org/10.4209/aaqr.2017.10.0378CrossRefGoogle Scholar
  3. 3.
    C.A. Randles, A.M. da Silva, V. Buchard, P.R. Colarco, A. Darmenov, R. Govindaraju, A. Smirnov, B. Holben, R. Ferrare, J. Hair, Y. Shinozuka, C.J. Flynn, The MERRA-2 Aerosol Reanalysis, 1980 Onward. Part I: system description and data assimilation evaluation. J. Clim. 30, 6823–6850 (2017).  https://doi.org/10.1175/JCLI-D-16-0609.1CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Pavel Kishcha
    • 1
    Email author
  • Sheng-Hsiang Wang
    • 2
  • Neng-Huei Lin
    • 2
  • Arlindo da Silva
    • 3
  • Tang-Huang Lin
    • 2
  • Po-Hsiung Lin
    • 4
  • Gin-Rong Liu
    • 2
  • Boris Starobinets
    • 1
  • Pinhas Alpert
    • 1
  1. 1.Department of GeophysicsTel-Aviv UniversityTel-AvivIsrael
  2. 2.Department of Atmospheric SciencesNational Central UniversityTaoyuanTaiwan
  3. 3.NASA Goddard Space Flight CenterGreenbeltUSA
  4. 4.National Taiwan UniversityTaipeiTaiwan

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