| 摘要: |
| 该文利用机载激光云降水粒子探测数据、FY-2G静止卫星资料及其反演的云参量、上机宏观记录资料和当日08时探空资料，详细分析了2020年5月28日在贵州省西北部开展的一次飞机人工增雨作业过程中和作业后的云的宏微观物理参数。结果表明：①作业前拟作业区域有云系覆盖，云体亮度在-5~-14 ℃之间,云顶高度为3~4 km，云顶温度在0~-10 ℃之间。作业后3 h内云体亮温值明显下降，云顶温度降低至-30 ℃左右，云顶高度明显抬高，作业区5 km的范围有所扩大，表明作业后云体发展；②云降水粒子测量过程中发现，云粒子主要出现在5~6.3 km之间，降水粒子则主要存在于4~4.5 km之间，相同时刻所测量到的降水粒子比云粒子数浓度少1个量级。不同温度层级的粒子形态也不一致，0~-4.7 ℃主要是柱状冰雪晶，-6.5~-7.2 ℃主要是宽枝状、针状聚合体冰雪晶。 |
| 关键词: 飞机增雨；云宏观特征；云微物理探测 |
| DOI： |
| 投稿时间：2021-07-05 |
| 基金项目:贵州省气象局科研业务项目（黔气科登[2021]03-02号、黔气科登[2020]02-04号）：多参量动态对比方法在贵州飞机增雨效果检验中的应用、模式产品在飞机人工增雨潜力落区和作业条件判定的应用 |
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| Analysis of Macro and Micro Cloud Characteristics in an Aircraft Artificial Rain Enhancement Operation |
| LI Meiman,YU Yidan,XU Yi,LUO xiong,TIAN Hongling |
| (Guizhou Weather Modification Office, Guiyang 550081 , China) |
| Abstract: |
| Based on FY-2 satellite data and its retrieval products,on-board macro record data and airborne laser cloud and precipitation particle measurement data, the macro and micro physical parameters of cloud during a cloud seeding operation carried out on May 28, 2020 in northwest Guizhou Province were analyzed in detail. The results show that :① Before the operation, the area to be operated was covered by cloud system, the cloud black body temperature was between -5 ℃and -14 ℃, cloud-top height was between 3~4 km, and the cloud top temperature was between 0 ℃ and -10 ℃. Within 3 hours after operation, the cloud black body temperature decreased to about -30 ℃, the height of cloud top increased obviously, and the 5 km range of the operation area was expanded, indicating the development of cloud body after operation; ② In the process of cloud precipitation particle measurement, it was found that cloud particles mainly existed in the range of 5~6.3 km, while precipitation particles mainly existed in the range of 4~4.5 km. The precipitation particles measured at the same time were one order of magnitude less than the number concentration of cloud particles.The morphology of particles at different temperature levels is also different. At 0~4.7 ℃, columnar ice and snow crystals were the main particles, while at -6.5~-7.2 ℃, broad dendritic and acicular aggregate ice and snow crystals were the main particles. |
| Key words: aircraft rain； cloud macro characteristics； airborne cloud and precipitation detection |
