CMAQ을 이용한 수도권 풍하지역의 고농도 오존 현상 모사

Abstract

Recently, high ozone episode occurred frequently in Korea. Moreover ozone episodeoccurred not only in the city but also in background area where local anthropogenic sources arenot important. It analyzed frequency exceeding 100ppb ozone at air quality monitoring stationsin Seoul and rural area during 1995-2004.This paper reports on the use of the Community Multiscale Air Quality (CMAQ) modellingsystem to predict hourly ozone levels. Domain resolutions of 30km, 10km, 3.333km (innermost)have been employed for this study. Summer periods in June 2004 have been simulated and thepredicted results have been compared to data for metropolitan and rural air quality monitoringstations.The model performance has been evaluated with measured data through a range ofstatistical measures. Although, the CMAQ model reproduces the ozone temporal spatial trendsit was not able to simulate the peak magnitudes consistently.