Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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A High-resolution Numerical Simulation and Evaluation of Oak Pollen Dispersion Using the CMAQ-pollen Model

CMAQ-pollen 모델을 이용한 참나무 꽃가루 확산 고해상도 수치모의 및 검증

  • Oh, Inbo (Environmental Health Center, University of Ulsan College of Medicine) ;
  • Kim, Kyu Rang (Applied Meteorology Research Division, National Institute of Meteorological Research) ;
  • Bang, Jin-Hee (Environmental Health Center, University of Ulsan College of Medicine) ;
  • Lim, Yun-Kyu (Environmental Meteorology Research Division, National Institute of Meteorological Research) ;
  • Cho, Changbum (Applied Meteorology Research Division, National Institute of Meteorological Research) ;
  • Oh, Jae-Won (Department of Pediatrics, Hanyang University Guri Hospital, Hanyang University College of Medicine) ;
  • Kim, Yangho (Department of Occupational & Environmental Medicine, University of Ulsan College of Medicine) ;
  • Hwang, Mi-Kyoung (Department of Atmospheric Sciences, Pusan National University)
  • 오인보 (울산대학교 의과대학 환경보건센터) ;
  • 김규랑 (국립기상과학원 응용기상연구과) ;
  • 방진희 (울산대학교 의과대학 환경보건센터) ;
  • 임윤규 (국립기상과학원 환경기상연구과) ;
  • 조창범 (국립기상과학원 응용기상연구과) ;
  • 오재원 (한양대학교 구리병원 소아청소년과) ;
  • 김양호 (울산대학교 의과대학 직업환경의학교실) ;
  • 황미경 (부산대학교 대기환경과학과)
  • Received : 2016.12.06
  • Accepted : 2017.01.25
  • Published : 2017.02.28
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Abstract

The aim of this study is to evaluate the accuracy and variability of the oak pollen concentrations over the Seoul metropolitan region (SMR) simulated by the Community Multiscale Air Quality (CMAQ)-based pollen dispersion model, which is the CMAQ-pollen model integrated with the improved oak pollen emission model(PEM-oak). The PEM-oak model developed is based on hourly emission flux parameterization that includes the effects of plant-specific release, meteorological adjustment, and diurnal variations of oak pollen concentrations. A 33 day-run for oak pollen simulation was conducted by the CMAQ-pollen model with a 3 km spatial resolution for the SMR during the 2014 spring pollen season. Modeled concentrations were evaluated against the hourly measurements at three Burkard sampling sites. Temporal variations of oak concentrations were largely well represented by the model, but the quantitative difference between simulations and measurements was found to be significant in some periods. The model results also showed that large variations in oak pollen concentrations existed in time and space and high concentrations in the SMR were closely associated with the regional transport under strong wind condition. This study showed the effective application of the CMAQ-pollen modeling system to simulate oak pollen concentration in the SMR. Our results could be helpful in providing information on allergenic pollen exposure. Further efforts are needed to further understand the oak pollen release characteristics such as interannual variation of the oak pollen productivity and its spatio-temporal flowering timing.

Keywords

References

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