京津冀地区一次气溶胶和层云微物理特征的飞机探测分析
An Analysis of Microphysical Properties of Aerosol and Stratus in the Beijing-Tianjin-Hebei Region by Aircraft Measurements
DOI: 10.12677/ccrl.2025.141007, PDF,    国家自然科学基金支持
作者: 吕玉环：天津市武清区气象局，天津；魏 蕾*：中国气象局人工影响天气中心，北京；孟 辉：天津市人工影响天气办公室，天津
关键词: 飞机探测；层状云；微物理特征；Aircraft Measurement； Stratiform Clouds； Microphysical Properties
摘要: 本文利用2017年8月27日京津冀地区组织的5架飞机联合探测资料，重点分析研究了层状云系不同发展阶段的气溶胶和云微物理变化特征，主要结论有：1、气溶胶主要分布在3 km以下，成熟阶段云内Na比减弱时段明显要大，入云后Na随高度先减小后增加。平均De随着高度增加而增加，成熟阶段明显小于减弱阶段。2、小云粒子表现出明显分层，成熟阶段的Nc和LWC大于减弱阶段。逆温层以下，Na和云滴De之间存在正相关关系。成熟阶段的相对离散度分布范围更大，Nc值更大，以更小速度收敛。3、不同区域间大云粒子主要分布在3 km以上，减弱阶段云层高度更高。河北较北京地区Nic要小，Dm更大，在5 km以上的IWC更大。在0℃层以下，平均IWC普遍较小，最大值也不超过0.1 g m−3，在5 km以上，平均IWC随高度逐渐增加。
Abstract: The microphysical properties of aerosols and cloud in stratiform cloud system at different development stages were analyzed based on the observation data of 5 aircrafts organized in the Beijing-Tianjin-Hebei region on August 27, 2017. The main results: (1) Aerosols are mainly distributed below 3 km. Na is larger in the mature stage than in the weakening stage. Na decreases first when entering cloud and then increases with height. The average De increases with the increase of height, which is significantly smaller in the mature stage than in the weakening stage. (2) The characteristics of small cloud droplets show obvious stratification, and the Nc and LWC in the mature stage are larger than those in the weakening stage. Below the inversion layer, there is a positive correlation between Na and cloud droplets De. The relative dispersion shows the distribution range is larger, Nc is larger, and convergence rate is smaller in the mature stage. (3) Large cloud particles are mainly distributed over 3 km in different regions. Besides, the cloud layer height is higher in the weakening stage. Compared with Beijing, Nic is smaller, Dm is larger, IWC above 5 km is larger in Hebei. Below 0˚C layer, the average IWC is generally small, the maximum value does not exceed 0.1 g m−3, while it increases gradually with height above 5 km layer.
文章引用：吕玉环, 魏蕾, 孟辉. 京津冀地区一次气溶胶和层云微物理特征的飞机探测分析[J]. 气候变化研究快报, 2025, 14(1): 58-68. https://doi.org/10.12677/ccrl.2025.141007

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