• Proceedings of the Korean Environmental Sciences Society Conference
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• 2005.05a
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• pp.63-64
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• 2005

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2008.11a
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• pp.47-49
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• 2008

기상장 수치모의 결과 Case NGSST와 Case Default의 해수면 온도가 다르게 표현 되어 대상지역의 온도장을 변화 시켰고, 이에 따른 바다와 육지간의 온도경도 변화는 해풍 및 육풍의 침투 깊이를 변화 시켰을 뿐만 아니라 풍속의 변화에도 영향을 미쳤다. 이러한 기상장의 차이는 대기질 모의결과에도 영향을 미쳐 오존농도 분포의 차이로 나타났다.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2005.11a
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• pp.470-471
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• 2005

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2004.05a
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• pp.187-188
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• 2004

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.11a
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• pp.435-436
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• 2003

경제 개발이 시작되면서 급속한 공업화와 산업 활동의 증가로 도시를 중심으로 하여, 대기는 해마다 오염도가 증가되어 왔으며, 최근에는 그 정도가 매우 심각한 상태에 이르게 되었다. 대기의 오염도는 배출원과 오염물질의 종류 및 특성에 따라 좌우되지만, 그때의 기상 조건과 지형에도 큰 영향을 밭는다. 그러므로 대기 오염 물질이 대기 환경에 어떠한 영향을 미치는가를 측정하고 수치 모의를 통해 예측하는 것이 필요하게 되었다. (중략)

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2006.04a
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• pp.452-453
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• 2006

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2017.10a
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• pp.55-55
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• 2017

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2006.11a
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• pp.62-63
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• 2006

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2006.11a
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• pp.168-169
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• 2006

• Journal of Environmental Impact Assessment
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• v.24 no.5
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• pp.456-471
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• 2015

Emission source term is one of the strong controlling factors for the air quality simulation capability, particularly over the urban area. Ulsan is an industrial area and frequently required to simulate for environmental assessment. In this study, two CAPSS (Clean Air Policy Support System) emission data; CAPSS-2003 and CAPSS-2010 in Ulsan, were employed as an input data for WRF-CMAQ air quality model for emission assessment. The simulated results were compared with observations for the local emission dominant synoptic conditions which had negative vorticities and lower geostrophic wind speed at 850hPa weather maps. The measurements of CO, $NO_2$, $SO_2$ and $PM_{10}$ concentrations were compared with simulations and the 'scaling factors' of emissions for CO, $NO_2$, $SO_2$, and $PM_{10}$ were suggested in in aggregative and quantitative manner. The results showed that CAPSS-2003 showed no critical discrepancies of CO and $NO_2$ observations with simulations, while $SO_2$ was overestimated by a factor of more than 12, while $PM_{10}$ was underestimated by a factor of more than 20 times. However, CAPSS-2010 case showed that $SO_2$ and $PM_{10}$ emission were much more improved than CAPSS-2003. However, $SO_2$ was still overestimated by a factor of more than 2, and $PM_{10}$ underestimated by a factor of 5, while there was no significant improvement for CO and $NO_2$ emission. The estimated factors identified in this study can be used as'scaling factors'for optimizing the emissions of air pollutants, particularly $SO_2$ and $PM_{10}$ for the realistic air quality simulation in Ulsan.