干旱气象 ›› 2020, Vol. 38 ›› Issue (6): 1043-1051.

• 业务技术应用 • 上一篇    

人工增雨催化响应试验分析

张景红1,2,3,孟辉4,于翠红1,2,崔红1,2,孙海燕1,2
  

  1. 1.吉林省人工影响天气办公室,吉林长春130062;2.中国气象局吉林省人民政府
    人工影响天气联合开放实验室,吉林长春130062;3.河北省气象与生态环境重点实验室,
    河北石家庄050021;4.天津市人工影响天气办公室,天津300074
  • 出版日期:2020-12-31 发布日期:2021-01-06
  • 通讯作者: 孙海燕(1978— ),女,高级工程师,主要从事人工影响天气、云降水物理等研究. E-mail: jl010429@163.com。
  • 作者简介:张景红(1967— ),女,研究员,主要从事人工影响天气、云降水物理、室内云室实验等研究. E-mail: zhangjh8070@163.com。

he Case Study of Weather Modification Seeding Response Experiment #br#

ZHANG Jinghong1,2,3, MENG Hui4, YU Cuihong1,2,#br#  CUI Hong1,2, SUN Haiyan1,2   

  1. 1. Jilin Weather Modification Office, Changchun 130062, China; 2. Joint Open Laboratory for Weather Modification
     of Chinese Meteorological Administration and People’s Government of Jilin Province, Changchun 130062, China;
    3. Key Laboratory of Meteorology and Ecological Environment of Hebei Province, Shijiazhuang 050021, China;
    4. Tianjin Weather Modification Office, Tianjin 300074, China
  • Online:2020-12-31 Published:2021-01-06

摘要: 针对2003年7月8日吉林省境内一次积层混合云人工催化响应过程,确定人工增雨效果检验的背景区和催化响应区,分析云系人工增雨的可播性及背景区与响应区云的微物理量差别。结果显示:(1)催化响应区中冰粒子数浓度明显高于背景区,其中直径为37.5~187.5 μm的冰粒子数浓度增加最多;(2)催化响应区中直径小于等于18.5 μm的小云粒子数浓度低于背景区,而直径为18.5~45.5 μm的大云粒子数浓度则相反;(3)催化作业后,过冷水含量减少,雷达回波强度增加,强回波区范围增大,此次人工催化作业催化响应明显。

关键词: 人工增雨可播性, 背景区, 催化响应区, 粒子谱

Abstract: In order to study physical response of cloud seeding, the precipitation enhancement experiment of stratiform and embedded convective cloud on 8 July 2003 in Jilin Province was analyzed in this paper. The background area and response area of cloud seeding for artificial precipitation enhancement effect were identified, and the seedability of cloud was studied. The differences of cloud microphysical characteristics between background area and response area was analyzed. The results are as follows: (1) The ice crystal number concentration in response area was significantly higher than that in the background area. In response area ice crystal number concentration with a diameter from 37.5 μm to 187.5 μm increased obviously. (2) The number concentration of small cloud particles with a diameter less than or equal to 18.5 μm in response area was lower than that in the background area, but the number concentration of large cloud particles with a diameter from 18.5 μm to 45.5 μm in response area was higher than that in the background area. (3) After cloud seeding, supercooled water content decreased, the radar echo intensity increased, and strong radar echo zone also increased. The physical response of cloud seeding was obvious in this experiment.

Key words: seedability of cloud, background area, response area, particle size spectrum of cloud