一次飞机播撒吸湿性焰剂试验的微物理探测浅析

Preliminary Analysis of In-situ Measurements in Warm Cloud after Seeding with Hygroscopic Flares

摘要: 2011 年夏季, 北京市人工影响天气办公室组织了吸湿性焰剂的飞机播撒试验, 选取八达岭长城西北的淡积云作为催化对象。试验期间, 使用装备了云探测设备的运12 飞机进行播撒及云微物理探测。在6 月1 日的试验中, 运用差异化策略分别对不同的淡积云实施了催化, 探测发现云中出现了符合暖云增雨概念模型的微物理反应。随后在晴空区实施了烟羽探测试验, 通过在吸湿性焰剂烟羽区的穿刺飞行, 获得了正在扩散的吸湿性焰剂的粒子谱, 了解了播撒后扩散区的微物理特征。

Abstract: In summer 2011, a warm cloud modification experiment was performed by the Beijing Weather Modification Office. Cumulus humilis over the Great Wall at Beijing Badaling was selected as the seeding target cloud, and hygroscopic flares were ignited at the cloud base level. Seeding and in-situ observations were conducted by a Y-12 aircraft equipped with a seeding device and cloud physics probes. Different strategies were used in an experiment on 1 June. A microphysical response consistent with the warm cloud seeding conceptual model was observed after seeding. The plume of the flare was subsequently measured in a clear zone, and the particle size distribution of the hygroscopic flare was illustrated.