王莹,李成名,赵占杰,刘振东,王飞,陈汉生,刘嗣超

• 1:中国测绘科学研究院
• 2:山东科技大学测绘科学与工程学院

摘要(Abstract)：

为研究城市机动车尾气扩散规律并寻求空气质量的改善措施,该文提出一种针对机动车尾气扩散过程的三维动态可视化表达方法。研究了CALINE4模型,顾及了道路特征和风向;模拟城市道路机动车尾气扩散过程,生成时间序列的体过程数据,从而得到CO、NOx等机动车污染气体的扩散及分布情况;利用光线投射算法进行直接体绘制。该方法能够有效模拟机动车尾气的扩散情况,并实现三维动态可视化。最后通过实验模拟一条道路的机动车尾气扩散情况,对道路机动车尾气扩散可视化结果进行分析,验证本文选取方法的有效性和可行性。

关键词(KeyWords)： 机动车尾气;CALINE4模型;可视化;直接体绘制;光线投射算法

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41871375);; 基础测绘项目(A1705)

作者(Author): 王莹,李成名,赵占杰,刘振东,王飞,陈汉生,刘嗣超

DOI: 10.16251/j.cnki.1009-2307.2020.05.017

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