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对１９９７年５月６日河南省飞机人工增雨作业雨量分布和雨强变化特征的分析发现，增雨效果最显著时段出现在飞机作业后的１～２ｈ，该次飞机人工增雨作业增雨量约为１０ｍｍ，相对增雨约为２５％。
Based on the analysis of the rainfall distribution and rainfall intensity of the artificial precipitation increase in Henan Province on May 6, 1997, it was found that the most significant period of rainfall enhancement occurred 1 ~ 2 hours after the operation of the aircraft. The artificial precipitation increased rainfall About 10mm, relative humidity is about 25%.