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首页> 外文期刊>Advances in Meteorology >Evaluation of Air Quality Model Performance for Simulating Long-Range Transport and Local Pollution of PM_(2.5) in Japan
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Evaluation of Air Quality Model Performance for Simulating Long-Range Transport and Local Pollution of PM_(2.5) in Japan

机译：日本模拟远程运输和PM_（2.5）局部污染的空气质量模型性能评价

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摘要

The CommunityMultiscale Air QualityModel (CMAQ) v5.0.2 was applied to PM_(2.5) simulation in Japan, which is strongly affected by long-range transport (LRT) from anthropogenic sources in the Asian Continent, for one year from April 2010 to March 2011. The model performance for LRT and local pollution (LP) of PM_(2.5) was evaluated to identify the model processes that need to be improved. CMAQ well simulated temporal and spatial variation patterns of PM_(2.5) but underestimated the concentration level by 15% on average. The contribution of LRT was estimated from the difference between the baseline simulation case and a zeroemission case for anthropogenic emissions in the continent. The estimated LRT contribution to PM_(2.5) was 50% on average and generally higher in the western areas of Japan (closer to the continent). Days that were dominantly affected by LRT or LP were determined based on the contribution of LRT to sulfate, which was fairly well simulated and strongly affected by LRT amongmajor PM_(2.5) components.The underestimation of PM_(2.5) was larger in LP days (by 26% on average) than LRT days (by 10% on average). Therefore, it is essential to improve local emissions, formation, and loss processes of precursors and PM_(2.5) in Japan.
机译：CommunityMultiscale Air ParessialModel（CMAQ）V5.0.2适用于日本的PM_（2.5）模拟，这对亚洲大陆的人为来源的远程运输（LRT）受到强烈影响，从2010年4月到2011年3月。评估PM_（2.5）的LRT和局部污染（LP）的模型性能，以确定需要改进的模型过程。 CMAQ井模拟PM_（2.5）的空间变化模式，但平均低估了浓度水平15％。 LRT对基线模拟案例与大陆人为排放的零化案件之间的差异估计。估计的LRT对PM_（2.5）的贡献平均为50％，日本西部地区（越来越多），普遍越来越高）。基于LRT或LP源于LRT或LP的日子，基于LRT对硫酸盐的贡献来确定，这在MMAJOR（2.5）组分中的LTT中的模拟和强烈影响是相当良好的模拟和强烈影响。LP天（2.5）低估PM_（2.5）（平均26％）比LRT天（平均10％）。因此，必须改善日本前体和PM_（2.5）的局部排放，地层和损失过程。

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