基于高分辨率影像的城市地区气溶胶反演研究述评

Review of the urban aerosol retrieval research based on high-resolution images

介绍了大气气溶胶对全球气候变化和大气污染状况的影响,阐述了基于卫星遥感反演气溶胶的国内外研究现状;简要介绍了卫星遥感反演气溶胶的原理以及当前应用较为广泛的单通道和多通道法、基于对比度差异的空间结构法、基于多角度数据的反演方法、基于偏振数据的反演方法和基于星载激光雷达数据的反演方法等5类卫星遥感反演方法;最后根据上述反演方法以及城市地区气溶胶反演的难点,对城市地区气溶胶反演研究进行了论述分析和总结,点明了利用卫星高分辨率遥感影像对城市地区气溶胶反演研究的重要性,讨论了当前基于高分辨率影像的城市地区反演方法的不足,并对其存在的问题的突破点和解决途径进行了展望。

This paper describes the influence of aerosols on global climate change and air pollution situation, points out the importance of using high - resolution satellite images for urban aerosols inversion, elaborates the research status of the satellite remote sensing retrieval of aerosol, and briefly introduces the principle of satellite remote sensing retrieval of aerosol, and the single channel and multi - channel method, the contrast method based on differences in the spatial structure, the inversion method based on multi -angle data, the inversion method based on polarization data and the inversion method based on laser radar satellite data, which constitute five kinds of satellite remote sensing inversion method widely used nowadays. According to the inversion method and the difficulties of the urban aerosol inversion, the inversion of aerosol in urban areas is analyzed and summarized, with a detailed discussion on the shortcomings of current inversion methods based on high - resolution images of urban areas and a forecast of breakthrough points and the solutions of the existing problems.