湖南省夏秋季一次飞机人工增雨典型作业过程分析与评估

Analysis and Evaluation of a Typical Aircraft Artificial Rain Enhancement Operation in Hunan Province during Summer and Autumn

摘要: 湖南省中南部夏秋之交的干旱加剧，为缓解湘中南旱情，在低槽切变影响下，针对湘中湘北的一次系统性降水过程进行作业条件分析，得出湘中南具备相应作业条件，遂设计飞机人工增雨作业方案，并适时开展，将降水范围扩大至中南部干旱区域，作业后根据微量物理变化、回波变化、降水量统计等方法，对增雨效果进行评估分析。

Abstract: The drought in the central and southern parts of Hunan Province intensified at the end of summer and the beginning of autumn. To alleviate the drought in the central and southern parts of Hunan, an analysis of the operational conditions was conducted for a systematic precipitation process in the central and northern parts of Hunan under the influence of a low trough shear. It was concluded that the central and southern parts of Hunan had the corresponding operational conditions. Therefore, an aircraft artificial rain enhancement operation plan was designed and carried out in a timely manner, expanding the precipitation range to the drought-stricken areas in the central and southern parts. After the operation, the rain enhancement effect was evaluated and analyzed based on methods such as microphysical changes, echo changes, and precipitation statistics.