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The Analysis of Atmospheric Flow Field and Air Quality According to the High Level Ozone Case on Gwangyang Bay
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 Title & Authors
The Analysis of Atmospheric Flow Field and Air Quality According to the High Level Ozone Case on Gwangyang Bay
Choi, Hyun-Jung; Lee, Hwa-Woon; Leem, Heon-Ho; Song, Jae-Hwal;
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Gwangyang Bay is often severely confronted by photochemical pollutants due to its location and dense emissions. It is located in a basin on the south coast of the Korean peninsula and is crossed by a remarkable cluster of hills and mountains of a small horizontal scale that forms a channel. Clearly, the air flow field has a great influence on the dispersion of air pollutants. The characteristics of the wind flow patterns have an important effect on the dispersion of pollutants emitted. In these situations, the distribution of the ozone concentration is extremely complicated because of the superposition of circulations of the air flow fields, especially in complex coastal region. In this study, we examined the distribution of the high level ozone on Gwangyang Bay particularly during the episode day (for 5 years). Among these days, A high level ozone was induced by the development of a sea/land breeze local circulation system, as well as by an anabatic/catabatic flow from the mountains and valley with weakening of the synoptic wind. High level ozone distribution pattern(6 types) on Gwangyang bay is analyzed and the comparison of each pattern reveals substantial localized differences in intensity and distribution of ozone concentration from the site coherence and UPA analysis of ozone concentration. The observed VOC concentration had much difference in concentrations and daily variations between Jungdong and Samil.
Wind flow patterns;Distribution of ozone concentration;Synoptic wind;
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진주시 오존농도의 시간적 추이와 공간적 비교,박정호;

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군집분석과 상세기상모델을 통한 포항지역 계절별 바람장 특성,정주희;오인보;고대권;김유근;

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광양 일부지역의 오존 농도분포,조수연;최수현;임지영;홍성철;이종대;양원호;손부순;

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