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Korean Meteorological Society (한국기상학회)
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Characteristics of Vertical Profiles of Local Aerosol Mass Concentration According to Air Mass Pathways over the Korean Peninsula During Winter

한반도 겨울철 공기이동경로에 따른 에어로졸 농도의 연직분포 특성

  • Ko, A-Reum (Applied Meteorology Research Division, National Institute of Meteorological Sciences) ;
  • Kim, Jinwon (Climate Research Division, National Institute of Meteorological Sciences) ;
  • Chang, Ki-Ho (Radar Planning Team, Weather Radar Center) ;
  • Cha, Joo-Wan (Applied Meteorology Research Division, National Institute of Meteorological Sciences) ;
  • Lee, Sang-Min (Earth System Research Division, National Institute of Meteorological Sciences) ;
  • Ha, Jong-Cheol (Applied Meteorology Research Division, National Institute of Meteorological Sciences)
  • 고아름 (국립기상과학원 응용기상연구과) ;
  • 김진원 (국립기상과학원 기후연구과) ;
  • 장기호 (기상청 레이더센터) ;
  • 차주완 (국립기상과학원 응용기상연구과) ;
  • 이상민 (국립기상과학원 지구시스템연구과) ;
  • 하종철 (국립기상과학원 응용기상연구과)
  • Received : 2019.07.02
  • Accepted : 2019.09.19
  • Published : 2019.12.31
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Abstract

Vertical distributions of aerosol mass concentrations over Seoul and Gangneung from January to February 2015 were investigated using aerosol Mie-scattering lidars. Vertical mass concentration of aerosol was calculated from the lidar data using KALION's algorithm and quantitatively compared with ground PM10 concentration to obtain objectivity of data. The backward trajectories calculated using HYSPLIT (version 4) were clustered into 5 traces for Seoul and 6 traces for Gangneung, and the observed aerosol vertical mass distribution was analyzed for individual trajectories. Result from the analysis shows that, aerosol concentrations with in the planetary boundary layer were highest when airflows into the measurement points originated in the Shandong Peninsula or the Inner Mongolia. In addition, the difference of aerosol mass concentrations in the two regions below 1 km was about twice as large as that in the long range transport from the Shandong Peninsula compared to the local emission. This result shows that the air quality over Korea related to particulate matters are affected more by aerosol emissions in the upstream source regions and the associated transboundary transports than local emissions. This study also suggests that the use of local aerosol observations is critical for accurate simulations of aerosol-cloud interactions.

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References

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