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KMID : 1024520010100030187
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Journal of the Environmental Sciences
2001 Volume.10 No. 3 p.187 ~ p.194
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Numerical Simulation of NO₂Concentration considering SST Effects
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Won Kyung-Mi
Lee Hwa-Woon
Kim Yoo-Keun
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Abstract
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For the purpose of predicting air pollutants concentration in Pusan coastal urban, we used an Eulerian model of flow and dispersion/chemistry/deposition process considering SST effects which estimate through POM. The results of air quality model including emission from various sources show that the seasonal variation pattern of respective pollutants was affected by the seasonal SST fields and local circulation. Horizontal deviation of diurnal SST was 2.5~4K, especially large gradients in coastal region. Through numerical simulation of wind fields we predicted that local circulation prevailed during daytime in summer and nighttime in winter. So high concentration distribution showed toward inland in spring and summer seasons, while high concentration distribution showed at inland near coast in autumn and winter.
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KEYWORD
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Eulerian model, SST effects, POM, seasonal variation, SST fields, wind fields, local circulation, high concentration distribution
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