雹胚

关于雹胚的研究

A study of hail embryo

结果表明：雹胚源区出现在主上升气流前侧上升气流向辐散下沉气流的转向处，在垂直方向上位于最大上升速度上方；

The findings show that location of hail embryo lies in front of the main updraft , at the turning of updraft to divergence downdraft , and above the largest ascending velocity in the vertical direction .

在冰雹形成过程中，作为雹胚的霰和冻滴主要通过撞冻过冷水增长。

In hail formation , growth of graupel and frozen drop as hail embryo is mainly by the accretion processes .

人工引晶的作用有三：（1）加强云中冰霰转化过程，雹胚过多争食防雹；

After seeding artificial ice crystals , more hail embryos were formed through conversion of ice crystals to graupels , which competed with the supercooled water .

结果表明：可长成大雹的雹胚的初始出发区的位置主要由雹云的流场决定，而与雹胚的大小关系不明显；

The results show that the starting location of hail embryo which can growth to large hailstone is decided by the streamline field of hail storm , and the effect of hail embryo size on the formation of large hailstone is not remarkable .