【摘要】 本文探讨暴雨区云和水汽输送的作用,从水量平衡观点出发,推导了暴雨区降水量的表达式。并以1975年8月5日至7日河南省中部的特大暴雨为例,初步估算两个不同面积上云净输送的液、固态水量。估算结果说明,云输送对暴雨有重要贡献。特别是在暴雨中心区,云输送对暴雨量起着决定性的作用。它是分析暴雨过程不能忽略的一个重要因素。更多还原

【Abstract】 This paper deals with the effect of clouds and water vapour transport in heavy rain fields. From the viewpoint of water balance, we have derived an expression of the amount of rainfall over the heavy rain field. And by using the example of the extremly heavy rainfall in the central part of Henan Province from 5th to 7th August 1975, We have given an initial approximate calculation about the net transport for liquid and solid water content of Clouds in two diffrent areas. From the results of the approximate calculation, we know the cloud transport gives essential contribution to heavy rainfall. Especiall, in the central region of the heavy rainfall, Cloud transport shows decisive effects to the amount of rainfall and it is an important factor, which we should not neglect, for the analysis of the process of heavy rainfall.更多还原