A Modeling Method of Cloud Seeding for Rain Enhancement

  • Hui Xiao
  • Weijie Zhai
  • Zhengqi Chen
  • Yuxiang He
  • Dezhen Jin

Abstract

A modeling method for evaluating rain enhancement of cloud seeding with liquid carbon dioxide (hereinafter LC) coolant and silver iodide (AgI) ice nuclei has been developed. The method has been used to simulate a field experiment. Modeling results indicate that cloud seeding with LC and AgI in the appropriate part of cloud can induce notable change to cloud microphysical and dynamical processes, accelerating updraft velocity, speeding up formation of rain water, changing rainfall distribution, and finally increasing total rainfall. Different seeding agent like LC and AgI has different seeding effect. The mechanism of seeding LC to increase rainfall is analyzed.

Key Words

rain enhancement cloud seeding liquid CO2 modeling method 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Hui Xiao
    • 1
  • Weijie Zhai
    • 1
    • 2
  • Zhengqi Chen
    • 3
  • Yuxiang He
    • 1
  • Dezhen Jin
    • 4
  1. 1.Laboratory of Cloud-Precipitation Physics and Severe Storms (LACS), Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingPeople’s Republic of China
  2. 2.Louhe Occupation Technical CollegeLuohePeople’s Republic of China
  3. 3.Shaanxi Province Weather Modification CenterXi’anPeople’s Republic of China
  4. 4.Jilin Province Weather Modification CenterChangchunPeople’s Republic of China

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