›› 1986, Vol. 6 ›› Issue (4): 309-315.

• 论文 • 上一篇    下一篇

广州城市对降水的影响

黄伟峰, 沈雪频   

  1. 中山大学
  • 出版日期:1986-10-30 发布日期:1986-10-30

THE INFLUENCE OF URBAN DISTRICTS ON THE PRECIPITATION IN GUANGZHOU

HUANG Weifeng, SHEN Xuepin   

  1. Zhong Shang University
  • Online:1986-10-30 Published:1986-10-30

摘要: 国外有人估计,到本世纪末,世界上将有一半以上的人口居住于大城市。城市随着人口的增长,人类活动将更加频繁,人为因素的影响将导致城市气候的变化。因此,人们对城市气候将愈来愈重视,对它的研究也日益广泛、深入。城市对降水的影响,过去有三种不同的看法:一是认为城市对降水无影响;二是认为城市化有使降水增加的效应,特别是在城市的下风方降水量增多;三是城市化反而使降水量减少。事实表明,由于广州城市化的影响,有使降水增加的趋势。本文通过分析广州市区、郊区及邻县的降水资料,探讨城市对降水的影响问题。降水对于城市交通、建设施工以及商业活动等都有很大的影响。因此,开展城市降水的研究,具有重要的生产意义。

Abstract: The influence of city on the precipitation is a controversial issue. The study, carried by the authors, shows that the urban effect causes an increase of 4-6 present in rainfall of Guangzhou urban districts. The Guangzhou urban heat island effect increases the number of thunderstorm-day. the day-time precipitation and precipitation intensity, and decreases the number of fine day. The influence occures Bnainly in summer and autumn. The authors suggest that the increase of urban precipitation result from the synthetci effect of various factors. Cities in low latitudes, such as Guangzhou, the effect of urban heat island is the main factor.