aosflow2 (a1)

The aerosol observing system (AOS) is the primary platform for in situ aerosol measurements at Earth’s surface. Each AOS has a different complement of instruments, which are selected to ensure the best measurements at each deployment site. The AOS measures aerosol optical properties to better understand how particles interact with solar radiation and influence the Earth's radiation balance. These measurements are useful for calculating parameters used in radiative forcing calculations, such as the aerosol single scattering albedo, asymmetry parameter, mass scattering efficiency, and hygroscopic growth. Measurements made with the AOS form a long-term record at the ARM fixed sites. Shorter measurement records are available from mobile deployments in a wide variety of geographical regions. These measurements are valuable for: identifying long-term changes in aerosol properties identifying atmospheric processes controlling aerosol life cycle and their influence on clouds providing experimental data for developing and testing atmospheric climate models.

气溶胶观测系统（Aerosol Observing System, AOS）是地球表面气溶胶原位测量的核心平台。每个AOS配备的仪器组合各不相同，均根据部署站点的特定需求遴选，以确保最优测量效果。AOS通过测定气溶胶光学特性，旨在深入理解颗粒物与太阳辐射的相互作用机制及其对地球辐射平衡的影响。这些测量数据可用于计算辐射强迫相关参数，例如气溶胶单次散射反照率、不对称参数、质量散射效率及吸湿增长特性。在ARM固定站点，AOS的测量结果构成了长期观测记录；此外，通过在多样地理区域开展的移动部署，还可获取较短时间跨度的测量数据。这些测量具有重要价值，可用于：识别气溶胶特性的长期变化；揭示控制气溶胶生命周期的大气过程及其对云的影响；为大气气候模型的开发与验证提供实验数据。