Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Comparison of CMAQ Ozone Simulations with Two Chemical Mechanisms (SAPRC99 and CB05) in the Seoul Metropolitan Region

CMAQ 모델의 화학메커니즘(SAPRC99, CB05) 적용에 따른 수도권 오존농도 모의결과 비교

  • Kang, Yoon-Hee (The Institute of Environmental Studies, Pusan National University) ;
  • Oh, Inbo (Environmental Health Center, University of Ulsan College of Medicine) ;
  • Jeong, Ju-Hee (Department of Atmospheric Sciences, Pusan National University) ;
  • Bang, Jin-Hee (Environmental Health Center, University of Ulsan College of Medicine) ;
  • Kim, Yoo-Keun (Department of Atmospheric Sciences, Pusan National University) ;
  • Kim, Soontae (Department of Environmental Engineering, Ajou University) ;
  • Kim, Eunhye (Department of Environmental Engineering, Ajou University) ;
  • Hong, Ji-Hyung (Climate and Air Quality Research Department, National Institute of Environmental Research) ;
  • Lee, Dae-Gyun (Air Quality Forecasting Center, Climate and Air Quality Research Department, National Institute of Environmental Research)
  • 강윤희 (부산대학교 환경연구원) ;
  • 오인보 (울산의대 환경보건센터) ;
  • 정주희 (부산대학교 대기환경과학과) ;
  • 방진희 (울산의대 환경보건센터) ;
  • 김유근 (부산대학교 대기환경과학과) ;
  • 김순태 (아주대학교 환경공학과) ;
  • 김은혜 (아주대학교 환경공학과) ;
  • 홍지형 (국립환경과학원 기후대기연구부) ;
  • 이대균 (국립환경과학원 기후대기연구부 대기질통합예보센터)
  • Received : 2015.07.22
  • Accepted : 2015.11.17
  • Published : 2016.01.29
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Abstract

A comparison of ozone simulations in the seoul metropolitan region (SMR) using the community multiscale air quality (CMAQ) model with SAPRC99 and CB05 chemical mechanisms (i.e. EXP-SP99 and EXP-CB05) has been conducted during four seasons of 2012. The model results showed that the differences in average ozone concentrations between the EXP-SP99 and EXP-CB05 were found to be large in summer, but very small in the other seasons. This can be attributed that the SAPRC99 tends to produce more ozone than the CB05 in urban area like the SMR with low VOC/NOx ratio under high ozone conditions. Through quantitative comparison between two mechanisms for the summer, it was found that the average ozone concentrations from the EXP-SP99 were about 3 ppb higher than those from the EXP-CB05 and agreed well with the observations. Horizontal differences in ozone concentrations between SAPRC99 and CB05 showed that significant differences were found in southern part of the SMR and over the sea near the coast in summer.

Keywords

References

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