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

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 .