10:45 〜 11:15
[AAS11-13] Observation of atmospheric aerosols using lidar
★Invited Papers
キーワード：ライダー、エアロゾル、ネットワーク、衛星
We have operated a ground-based lidar network AD-Net using a dual wavelength (532, 1064nm) depolarization Mie lidar and have observed the movement of Asian dust and air pollution aerosols in East Asia continuously since 2001. This lidar network observation contributed to understanding the occurrence and transport mechanisms of Asian dust and air pollution, the validation of chemical transport models, data assimilation, and epidemiologic studies. The AD-Net has evolved with introduction of multi-wavelength high-spectral resolution lidars (HSRL) and Raman lidars, which leads to better understanding the optical and microphysical properties and mixing states of aerosols. The AD-Net has been used for validating EarthCARE satellite launched in May 2024. EarthCARE is a Japan-Europe joint satellite observation mission for understanding the interaction between cloud, aerosol, and radiation processes in the earth climate; four sensors of 355nm high spectral resolution lidar (ATLID), multi-spectral imager (MSI), broadband radiometer (BBR), and cloud profiling radar (CPR) are onboard. We have also developed algorithms to estimate vertical profiles of optical concentrations of different aerosol components using the AD-Net lidars and satellite-borne lidar onboard CALIPSO, and this analysis method has been applied to EarthCARE. In this conference, we will present the algorithm development and global analysis results of the satellite-borne lidars, and introduce related research activities of the AD-Net. The relevance and expectations for the field of atmospheric chemistry will also be discussed.