Skyradiometer data at Syowa station in JARE63

A sky radiometer was installed at the Showa Station to measure the direct solar radiation and the sky radiance distribution in the near-ultraviolet, visible, and near-infrared regions. Continuous observations have been carried out except during the polar night period. From the obtained radiation data, we derive the aerosol optical thickness, which represents the total vertical column amount of atmospheric aerosol particles, the Angstrom exponent, the particle size distribution, and the single scattering albedo using an inversion algorithm.昭和基地（Showa Station）安装了一台天空辐射计（sky radiometer），用于测量近紫外（near-ultraviolet）、可见光及近红外（near-infrared）波段的太阳直接辐射与天空辐射分布。本观测除极夜时段外均持续开展。基于获取的辐射数据，研究团队通过反演算法（inversion algorithm）反演得到气溶胶光学厚度（aerosol optical thickness，表征大气气溶胶粒子的总垂直柱含量）、安斯特朗指数（Angstrom exponent）、粒子尺度分布（particle size distribution）以及单次散射反照率（single scattering albedo）。