Development of an Airborne Cloud Water Sampler

在DYCOMS-II（海洋层积云动力学和化学）现场计划期间，将在C-130飞机上开发、测试和部署一个基于飞机的云水收集系统。该设计改进了以前的飞机收集器，提供了一个自动收集系统，能够获得多个，良好的特征云水样品进行化学分析。轴流式旋风分离器系统提供了从环境空气流中有效分离云滴的方法。旋转流产生的离心力将云滴移到管道壁上，云滴在管道壁上积聚，并通过位于叶片下游的提取槽去除。这些数据将用于研究云处理对气溶胶粒子的影响以及气溶胶物理和化学性质对云形成的影响。

An aircraft-based cloud water collection system will be developed, tested, and deployed on a C-130 aircraft during the DYCOMS-II (Dynamics and Chemistry of Marine Stratocumulus) field program. The design improves upon previous aircraft-based collectors by offering an automated collection system that is capable of obtaining multiple, well-characterized cloud water samples for chemical analysis. An axial flow cyclone system provides efficient separation of cloud drops from the ambient air stream. Centrifugal force resulting from the rotational flow acts to remove cloud drops to the duct wall, where they accumulate and are removed through an extraction slot located downstream of the vanes.Cloud water samples collected in the field study will be analyzed chemically. These data will be used to investigate the effects of cloud processing on aerosol particles and the influence of aerosol physical and chemical properties on cloud formation.