Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Analysis on High Concentration Air Pollution Cases in Gimhae Region Using the WRF Numerical Model

중규모 수치모델을 이용한 김해지역 고농도 대기오염 사례 분석

  • Jung, Woo-Sik (Department of Atmospheric Environment Information Engineering, Atmospheric Environment Information Research Center, Inje University) ;
  • Lee, Bo-Ram (KWeather Co.,Ltd.) ;
  • Park, Jong-Kil (Department of Environmental Enhineering, Atmospheric Environmental Information Research Center, Inje University) ;
  • Do, Woo-Gon (Busan Metropolitan City of Institute of Health and Environment)
  • 정우식 (인제대학교 대기환경정보공학과/대기환경정보연구센터) ;
  • 이보람 (케이웨더(주)) ;
  • 박종길 (인제대학교 환경공학부/대기환경정보연구센터) ;
  • 도우곤 (부산광역시 보건환경연구원 대기보전과)
  • Received : 2013.04.17
  • Accepted : 2013.05.20
  • Published : 2013.08.31
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Abstract

In this study, eight episode days of high-concentration $PM_{10}$ occurrences in the Gimhae region between 2006 and 2011 were analyzed. Most of them appeared in winter and the highest concentration was observed around 12 LST. Furthermore, the wind direction, wind velocity, and temperature elements were compared with observed values to verify the WRF numerical simulation results used in this study, and they simulated well in accordance with the trend of the observed values. The wind was generally weak in the high-concentration episode days that were chosen through surface weather chart and the numerical simulation results for wind field, and the air pollutants were congested due to the effects of the resulting local winds, thereby causing a high concentration of air pollutants. Furthermore, the HYSPLIT model was performed with the WRF numerical simulation results as input data. As a result, they originated from China and flowed into Gimhae in all eight days, and the lowest concentration appeared on the days when recirculation occurred.

Keywords

References

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