서해 조석현상에 따른 국지기상 변화가 수도권 오존농도에 미치는 영향

김성민; 김유근; 안혜연; 강윤희; 정주희

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질문

자료유형: 학술저널

저자정보: 김성민 김유근 안혜연 강윤희 정주희

저널정보: 한국환경과학회 한국환경과학회지 한국환경과학회지 제28권 제3호

발행연도: 2019.3

수록면: 341 - 356 (16page)

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연구주제

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연구배경

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연구방법

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연구결과

이 논문의 연구 히스토리 (2)

2019

서해 조석현상에 따른 국지기상 변화가 수도권 오존농도에 미치는 영향

김성민 , 김유근 , 안혜연 외 2명 한국환경과학회지 2019.03 학술저널

서해 조석현상에 따른 국지기상 변화가 수도권 오존농도에 미치는 영향

김성민 지구환경시스템학부 2019.01 학위논문

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In this study, the impacts of local meteorology caused by tidal changes in the West Sea on ozone distributions in the Seoul Metropolitan Area (SMA) were analyzed using a meteorological model (WRF) and an air quality (CMAQ) model. This study was carried out during the day (1200–1800 LST) between August 3 and 9, 2016. The total area of tidal flats along with the tidal changes was calculated to be approximately 912 km<sup>2</sup>, based on data provided by the Environmental Geographic Information Service (EGIS) and the Ministry of Oceans and Fisheries (MOF). Modeling was carried out based on three experiments, and the land cover of the tidal flats for each experiment was designed using the coastal wetlands, water bodies (i.e., high tide), and the barren or sparsely vegetated areas (i.e., low tide). The land cover parameters of the coastal wetlands used in this study were improved in the herbaceous wetland of the WRF using updated albedo, roughness length, and soil heat capacity. The results showed that the land cover variation during high tide caused a decrease in temperature (maximum 4.5℃) and planetary boundary layer (PBL) height (maximum 1200 m), and an increase in humidity (maximum 25%) and wind speed (maximum 1.5 ms<sup>-1</sup>). These meteorological changes increased the ozone concentration (about 5.0 ppb) in the coastal areas including the tidal flats. The increase in the ozone concentration during high tide may be caused by a weak diffusion to the upper layer due to a decrease in the PBL height. The changes in the meteorological variables and ozone concentration during low tide were lesser than those occurring during high tide. This study suggests that the meteorological variations caused by tidal changes have a meaningful effect on the ozone concentration in the SMA.

#Land cover #Meteorological variables #Ozone concentration #Tidal change #Tidal flat

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