顾震潮,詹丽珊. 1962. 起伏条件下云雾的重力碰并生长[J]. 气象学报, 32(4):301-307, doi:10.11676/qxxb1962.029
起伏条件下云雾的重力碰并生长
ON THE GROWTH OF THE DROPLETS UNDER GRAVITATIONAL COALESCENCE IN A FLUCTUATING ENVIRONMENT
投稿时间:1962-05-16  
DOI:10.11676/qxxb1962.029
中文关键词:  
英文关键词:
基金项目:
作者单位
顾震潮 中国科学院地球物理研究所 
詹丽珊 中国科学院地球物理研究所 
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中文摘要:
      云雾中的气象要素和云雾物理量经常有着起伏,因此研究重力碰并在这种起伏条件下如何使云滴生长,从而形成滴谱,是很必要的。本文对云中小水滴浓度(或含水量)有起伏时的云雾滴生长进行了计算,得到了云滴的一种理论分布。由此可以看出,在起伏条件下,云滴生长是比较快的。在比较短的时间和比较薄的云中有可能形成相当大的云滴,即半径50μ乃至100μ以上的云滴。因此在均匀条件下,凝结生长和重力碰并增长中的所谓“生长障碍”区(云滴半径在20-30μ左右)也就不存在。
英文摘要:
      As the cloud, structure is usually fluctuating, it is important to study the growth of the droplets under gravitational coalescence in such an environment. In this paper the growth rate of cloud droplet is calculated under the consideration of the fluctuation of the water content. The result obtained differs considerably from that obtained for the case without such fluctuation, and seems in better accord with the condition observed in the atmosphere. The growth rate is now much greater and the precipitation elements may even develop quickly from a group of small droplets of small dispersion in a cloud in a state of not intensive fluctuation.
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