新型地面气溶胶移动集成观测系统的研发及应用

Aerosols play an important role in global climate change. It remains as an urgent issue that how to effectively obtain comprehensive and representative observation data about essential properties of aerosols. With the problems of sparse observation stations, inefficient observation instruments and week comparisons of observational data etc, we plan to develop a new ground aerosol mobile integrated observation system in this study. This observation system will use various impactors to obtain different size aerosols and the observation instruments will be well integrated in series or parallel, which can be essential for the contrast and mutual verification between the instruments. This mobile system can be quickly set up in the field and obtain high quality observation data. A field campaign will be carried out in Gobi desert of northwestern China to test and improve this system. An aerosol optical closure study will be done with the comprehensive observation data to explore the method of data quality control. The essential properties of different size aerosols, such as scattering and absorption properties, mass concentration and particle size distribution, and so on, will be analyzed. This data will be valuable for validation and improvement of numerical simulation and satellite retrievals.

气溶胶是影响全球气候变化的重要因子之一，如何有效获取全面具有代表性的气溶胶基本特性资料仍是亟待解决的问题。本项目针对目前国内地基观测站涉及范围有限、仪器效用不能最大化、资料缺乏可比对性等问题，拟用SACOL站仪器设备，开发组建一套新型地面气溶胶移动集成观测系统。该系统将使用多个切割头，分离不同粒径范围气溶胶，通过仪器串联或并联的有序集成，增强仪器间的对比和相互验证，能在不易建站的地区快速开机运行，且得到高质量数据。集成系统研发完成后，拟在西北戈壁沙漠开展加强期观测试验，检验和改进该系统；运用综合观测数据进行气溶胶光学闭合研究，探索数据质量控制的方法；同时分析不同粒径范围气溶胶的散射和吸收特性，以及质量浓度、数浓度和粒径谱分布等基本特性，为卫星反演和数值模拟提供可靠详尽的依据。

气溶胶是影响全球气候变化的重要因子之一，如何有效获取全面具有代表性的气溶胶基本特性资料仍是亟待解决的问题。本项目针对目前国内地基观测站涉及范围有限、仪器效用不能最大化、资料缺乏可比对性等问题，用SACOL站仪器设备，开发组建了一套新型地面气溶胶移动集成观测系统。该系统将使用多个切割头，分离不同粒径范围气溶胶，通过仪器串联或并联的有序集成，增强仪器间的对比和相互验证，能在不易建站的地区快速开机运行，且得到高质量数据。2015年和2016年分别在青藏高原和张家口开展加强期观测试验，检验和改进该系统，利用试验观测结果分析不同粒径范围气溶胶的散射和吸收特性，以及质量浓度、数浓度和粒径谱分布等基本特性，为卫星反演和数值模拟提供可靠详尽的依据。