Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Numerical Simulation and Process Analysis Using the MM5-CMAQ in Yangsan on High Ozone Days during Spring and Summer

MM5-CMAQ 모델 시스템을 이용한 양산지역 봄, 여름 고농도 오존일의 발생과정별 기여도 평가

  • Kim, Yoo-Keun (Division of Earth Environmental System, Pusan National University) ;
  • Park, Sang-Hyun (Environment Division, Korea Engineering Consultants Corporation) ;
  • Kang, Jae-Eun (Division of Earth Environmental System, Pusan National University) ;
  • Song, Sang-Keun (Division of Earth Environmental System, Pusan National University)
  • 김유근 (부산대학교 지구환경시스템학부 대기과학) ;
  • 박상현 ((주)한국종합기술) ;
  • 강재은 (부산대학교 지구환경시스템학부 대기과학) ;
  • 송상근 (부산대학교 지구환경시스템학부 대기과학)
  • Received : 2008.02.29
  • Accepted : 2009.11.17
  • Published : 2010.03.31

Abstract

The relative contributions of physical and chemical processes to the production of ozone ($O_3$) were evaluated based on an integrated process rate (IPR) analysis using the MM5/CMAQ in a downtown (i.e., Yangsan_U) and suburban area (i.e., Ungsang) on high ozone days during spring and summer in 2006 (28 April and 8 August 2006). The IPR includes a horizontal advection (HADV) and diffusion (HDIF), a vertical advection (ZADV) and diffusion (VDlF), a dry deposition (DDEP), and a chemistry (CHEM). The VDIF in Yangsan_U was found to be the most dominant contributor (29.5% in spring and 32.1% in summer) to high $O_3$ concentrations, followed by the HADV and ZADV. In contrast, the contributions of the HADV (40.3% in spring and 32.3% in summer) in Ungsang were significantly higher than those of VDIF and ZADV. Moreover, $O_3$ production due to the chemical effect in the two areas (especially in Ungsang) during summer was found to be moderately higher than that during spring.

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Acknowledgement

Supported by : 부산대학교

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