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《中国工程科学》 >> 2012年 第14卷 第10期

城市大气污染源追踪“广义判识”与Nudging源同化集成技术途径

中国气象科学研究院,北京 100081

资助项目 :国家环保部行业专项“大气重污染过程预测预警与量化分级技术研究”(200909008);自然基金面上项目“区域大气重污染的预测预警与防治研究”(51038001) 收稿日期: 2012-06-22 发布日期: 2012-10-16 10:51:31.000

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摘要

提出了城市大气污染源追踪“广义判识”综合应用平台、模式源同化及其卫星遥感应用等新技术。“广义判识”综合应用平台包括气溶胶源主因子分析方法、气溶胶周期变化谱分析法、城市冠层大气污染变化规律同位相特性分析、追溯远距离空气污染源的合成风场相关矢量法、后向轨迹示踪法和边界层影响足痕分析法;另外,为解决长期以来大气污染模式中排放源不确定性的关键技术难点,采用源同化牛顿逼近Nudging技术,获取具有季节、月变化动态变化特征的SO2、NO2区域反演源排放清单。将卫星遥感资料应用在同化模型,探索空气污染预报模式的卫星遥感产品应用技术,卫星遥感—地基观测综合分析平台亦可广泛地应用于城市污染源追踪、城市雾和城市热岛的研究,并提出多圈层水—土—气综合分析方法是一种追踪水污染源的探索性尝试

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