星载气溶胶被动光学遥感仪器:进展与未来展望

Spaceborne Aerosol Passive Optical Remote Sensing Instruments:Progress and Future Prospects

气溶胶一直是环境气候、空气质量和公共卫生方面的重要影响因素。卫星遥感可以实现对地球大视场的观测,已成为气溶胶探测的主流方式之一。为了解星载气溶胶被动光学遥感仪器发展现状和趋势,以多光谱、多角度和偏振观测为立足点,调研了历史上各国星载气溶胶光学遥感仪器的主要技术参数。首先,详细介绍了国际上几款典型仪器的设计参数和其在气溶胶参数反演方面的具体应用情况。然后,对将要发射的先进遥感仪器进行了分析。最后,总结了未来星载气溶胶被动光学遥感仪器的发展方向。集多光谱、多角度、中等空间分辨率、大视场和高精度偏振测量于一体是未来星载气溶胶光学遥感仪器的发展趋势。

Aerosol has always been an important factor in environmental climate,air quality,and public health.Satellite remote sensing can realize the observation of the earth's large field of view and has become one of the mainstream methods of aerosol detection.In order to understand the development status and trend of spaceborne aerosol passive optical remote sensing instruments,this paper investigates the main technical parameters of spaceborne aerosol optical remote sensing instruments in different countries in history based on multi-spectral,multi-angle,and polarization observations.Firstly,the design parameters of several typical instruments in the world and their specific applications in aerosol parameter inversion are introduced in detail.Then,the advanced remote sensing instruments to be launched are analyzed.Finally,the development direction of spaceborne aerosol passive optical remote sensing instruments in the future is summarized.In addition,the paper points out that the integration of multi-spectral observation,multi-angle observation,medium spatial resolution,large field of view,and high-precision polarization measurement is the development trend of spaceborne aerosol optical remote sensing instruments in the future.