Journal of Arid Meteorology ›› 2022, Vol. 40 ›› Issue (4): 632-639.DOI: 10.11755/j.issn.1006-7639(2022)-04-0632

• Articles • Previous Articles     Next Articles

Stratiform cloud microphysical characteristics analysis during a spring soaking precipitation process in middle region of Inner Mongolia

XU Zhili1,2(), YI Nana1,2(), BI Lige1,2, YU Shuiyan1,2, ZHANG Juncheng3   

  1. 1. Inner Mongolia Weather Modification Center, Inner Mongolia, Hohhot 010051, China
    2. Inner Mongolia Key Laboratory of Manual Weather Modification, Inner Mongolia, Hohhot 010051, China
    3. Chifeng Meteorological Bureau of Inner Mongolia, Chifeng 024000, Inner Mongolia, China
  • Received:2021-12-31 Revised:2022-07-11 Online:2022-08-31 Published:2022-09-21
  • Contact: YI Nana

内蒙古中部一次春季透雨过程的云微物理特征分析

许志丽1,2(), 衣娜娜1,2(), 毕立格1,2, 于水燕1,2, 张俊成3   

  1. 1. 内蒙古自治区人工影响天气中心,内蒙古 呼和浩特 010051
    2. 内蒙古自治区人工影响天气重点实验室,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
  • 通讯作者: 衣娜娜
  • 作者简介:许志丽(1987—),女,汉族,内蒙古呼和浩特市人,硕士,工程师,主要从事大气物理与人工影响天气研究. E-mail:184893995@qq.com
  • 基金资助:
    内蒙古自治区自然科学基金(2022LHMS04003);内蒙古自治区自然科学基金(2021MS04026);内蒙古自治区自然科学基金(2020MS04015);内蒙古气象局科技创新项目(nmqxkjcx202014);中国气象局云雾物理环境重点开放实验室开放课题(2020Z00705)

Abstract:

The analysis of cloud macro and micro physical characteristics was conductive to improve the understanding of cloud bodies and provide technical support for local scientific artificial precipitation enhancement. The microphysical characteristics of stratiform cloud were analyzed by using an aircraft detection data and sounding data in middle region of Inner Mongolia on May 10, 2018. Affected by 500 hPa upper trough and Hetao cyclone, a stable stratiform cloud precipitation occurred in middle region of Inner Mongolia. The number concentration of precipitation particles and cloud particles were small in the middle and lower part of the stratiform cloud, and the vertical and horizontal distribution of cloud microphysical parameters showed obvious heterogeneity. The cloud particle spectrum presented a single peak distribution and generally a decreasing trend. The aircraft detection data showed 63.53% of cloud water content was greater than 0.002 g·m-3, 83.2% of super-cooled water content was greater than 0.010 g·m-3, and the super-cooled water content ranged from 0.010 to 0.050 g·m-3. There were areas with small natural ice crystals and relatively abundant super-cooled water in cloud with lower temperature, which had good crystal introduction and catalytic potential.

Key words: the middle region of Inner Mongolia, spring soaking precipitation, cloud microphysical structure, rain enhancement

摘要:

对典型飞机作业过程中云宏、微观物理特征的分析,有利于提高对云体的认识,为本地科学开展人工增雨作业提供技术支撑。利用2018年5月10日内蒙古中部地区一次飞机增雨探测资料及探空资料,对层状云降水微物理特征进行分析。受500 hPa高空槽与河套气旋影响,5月10日内蒙古中部地区形成稳定性层状云降水。降水性层状云中下部降水粒子、云粒子数浓度均较小,且云微物理量的垂直、水平分布均表现出明显的不均匀性,云粒子谱型呈单峰分布,总体上呈递减趋势;作业过程中63.53%的云水含量大于0.002 g·m-3,83.2%的过冷水含量大于0.010 g·m-3,过冷水含量在0.010~0.050 g·m-3,在层状云中温度较低的区域存在自然冰晶较小、过冷水相对较丰富区域,具有较好的引晶催化潜力。

关键词: 内蒙古中部地区, 春季透雨, 云微物理结构, 人工增雨

CLC Number: