内蒙古中部地区层状云微物理特征及可播度分析  

Analysis on microphysical characteristics and seedability of stratiform clouds in middle region of Inner Mongolia

作　　者：许志丽 徐亮亮 毕力格 史金丽 辛悦 刘沫彤 XU Zhili;XU Liangliang;BI Lige;SHI Jinli;XIN Yue;LIU Motong(Inner Mongolia Weather Modification,Hohhot 010051,China;Inner Mongolia Autonomous Region Meteorological Data Center,Hohhot 010051,China;Chifeng Meteorological Bureau of Inner Mongolia,Chifeng 024000,Inner Mongolia,China)

机构地区：[1]内蒙古自治区人工影响天气中心,内蒙古呼和浩特010051 [2]内蒙古自治区气象数据中心,内蒙古呼和浩特010051 [3]内蒙古自治区赤峰市气象局,内蒙古赤峰024000

出　　处：《干旱气象》2025年第1期126-132,共7页Journal of Arid Meteorology

基　　金：内蒙古自治区重点研发和成果转化项目(2022YFSH0132);内蒙古自治区自然科学基金项目(2022LHMS04003、2020MS04015);内蒙古气象局科技创新项目(nmqxkjcx202014)共同资助。

摘　　要：对层状云降水云系开展云微物理特征及可播性实时识别研究,有利于提高对层状云降水云系增雨催化潜力的认识,为人工增雨作业实时识别提供技术支撑。利用内蒙古中部地区2018—2019年8架次层状云飞机作业机载探测资料,研究该地区层状云微物理特征及人工增雨可播度特征。结果表明:层状云中云水、液态水、过冷水出现频率分别为59.97%、82.99%、70.84%;液态水含量主要集中在0.001~0.100 g·m^(-3),过冷水含量主要分布在0.010~0.100 g·m^(-3),具有较好的引晶催化潜力。大云粒子数浓度平均为8个·cm^(-3),数浓度大于20个·cm^(-3)的占比14.10%;小云粒子数浓度平均为20个·cm^(-3),数浓度大于20个·cm^(-3)的占比28.54%。云粒子数浓度总体上较小,70%以上的云粒子位于负温区。层状云中小云粒子数浓度达到15个·cm^(-3)时,云区具有可播度;当可播云区中大云粒子数浓度小于10个·cm^(-3)时,云区具有强可播度。Real-time identification of cloud microphysical characteristics and seeding ability of stratiform cloud precipitation system is beneficial for improving the understanding of the catalytic potential of stratiform cloud precipitation system,and providing technical support for real-time identification of artificial rainfall enhancement.The microphysical characteristics and the seeding ability of strati⁃form cloud in the middle of Inner Mongolia were analyzed by using airborne detection data of 8 stratiform cloud aircraft operations from 2018 to 2019.The results show that the occurring frequencies of cloud water,liquid water,and supercooled water in stratiform clouds are 59.97%,82.99%and 70.84%,respectively.The liquid water content is mainly concentrated between 0.001 and 0.100 g·m^(-3),while the supercooled water content is mainly distributed between 0.010 and 0.100 g·m^(-3),which indicates good potential for crystal seeding catalysis.The average number concentration of large cloud particles is 8 cm^(-3),and the number concentration more than 20 cm^(-3) ac⁃counted for 14.10%.The small cloud particle number concentration is 20 cm^(-3) on average,and the number concentration greater than 20 cm^(-3) accounted for 28.54%.More than 70%cloud particles are located in the negative temperature region,and the particle number concentration is generally small.When the number concentration of small cloud particle reaches 15 cm^(-3),the cloud region has certain seeding ability,while when the number concentration of large cloud particle is less than 10 cm^(-3),the cloud region has highly seeding ability.

关 键 词：层状云 人工增雨 云微物理特征 可播度 

分 类 号：P481[天文地球—大气科学及气象学]