黄山和沈阳大气冰核数浓度及核化机制对比分析

Comparative Analysis of Atmospheric Ice Nucleation Concentration and Nuclei Mechanism in Huangshan and Shenyang

本研究利用Bigg型混合云室及静力真空水汽扩散云室FRIDGE,结合其他气象要素观测设备,对黄山及沈阳为地域代表的各自三层不同高度大气冰核数浓度进行梯度对比观测,得出黄山及沈阳为地域代表各自三层不同高度大气冰核数浓度随高度、时间、活化温度、活化湿度、粒径大小等的变化规律,并对不同时空条件、不同核化条件、不同粒子条件下大气冰核的凝结冻结核化和凝华核化机制进行对比分析。对黄山及沈阳大气冰核的浓度分别拟合参数化公式,对黄山及沈阳不同区域的人工增减雨作业提供研究基础。

Herein,atmospheric ice nuclei gradient observation results from Huangshan and Shenyang were used as a representative.Using advanced international instruments for atmospheric ice nuclei observation and Bigg-type mixed and diffusion cloud chambers combined with meteorological element observation equipment,variation in the atmospheric ice nuclei number concentration with height,time,temperature,humidity,and particle size in Huangshan and Shenyang of China is analyzed.Two main mechanisms of atmospheric ice nuclei under different space locations,environmental conditions,and particle sizes are obtained.Finally,based on the above observations and research results,the parameter schemes of atmospheric ice nuclei in typical areas of northern and southern China are fitted with parameter formulas,and the attribute differences of atmospheric ice nuclei number concentration and nucleation mechanism in northern and southern China are finally obtained.Thus,it provides a theoretical basis for different artificial precipitation reduction operations in northern and southern China.