| 摘要 |
Factors controlling the effect of cloud seeding were critically examined, an d a new horizontal penetration seeding method using liquid homogenous ice nucleants at the lower level of the supercooled portion of clouds was invented to maximiz e the microphysics-dynamics interaction between the seeded ice crystal thermal and the supercooled cloud through optimal utilization of the phase change energy. Cloud seeding tests showed a remarkable effect. This method allows the development of twin rotating horizontal cylinders of ice crystal thermal, which slowly rise , expand and entrain the supercooled cloud droplets to provide the supersaturated condition and time for the required growth of seeded ice crystals. When the thermal reache s the top of the cloud, it spreads horizontally while lowering the ice crystals of sufficiently large size and fall velocity resulting in an effective treatment of the existing and induced cloud volume for precipitation augmentation and the associated dynam ic effect. The seeding method and apparatus for the operation are claimed.
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