地理科学 ›› 1998, Vol. 18 ›› Issue (1): 45-52.doi: 10.13249/j.cnki.sgs.1998.01.45

• 论文 • 上一篇    下一篇

城市区域屋顶上与地上的风速和温度特征分析

张一平1, 彭贵芬2, 张庆平3   

  1. 1. 中国科学院昆明生态研究所, 昆明650223;
    2. 昆明气象局, 昆明650034;
    3. 云南省档案馆昆明650032
  • 收稿日期:1996-09-19 修回日期:1997-02-17 出版日期:1998-01-20 发布日期:1998-01-20
  • 基金资助:
    国家教委留学回国科研启动基金;中国科学院留学经费择优支持回国工作基金

A STUDY ON THE CHARACTERISTIC OF WIND AND TEMPERATURE OVER THE ROOFTOP AND THE GROUND IN URBAN AREA

Zhang Yiping1, Peng Guifen2, Zhang Qingping3   

  1. 1. Kunming Institute of Ecology, Chinese Academy of Sciences, Kunming 650223;
    2. Kunming Meteorological Bureau, Kuming 650034;
    3. Ynannan Archives, Kunming 650032
  • Received:1996-09-19 Revised:1997-02-17 Online:1998-01-20 Published:1998-01-20

摘要: 以低纬高原城市昆明市为研究对象,利用城内外屋顶上和地上的风速和温度实测资料,分析了研究较少的,做为城市第二热力面的屋顶面附近的风速和温度特征、变化规律及其与地上的差异,得到了一些有益的结果。

Abstract: The microclimatic observation was conducted over the rooftop and the ground in urban and suburban areas of Kunming City of P.R.China. The main results obtained in this paper are summarized as follows: 1. The wind speed over the rooftop and the ground in the suburban are larger than in the urban area, and in daytime the differences are markable. 2. The air temperatures over the ground in the urban area are higher than in the suburban area at majority times. At night the differences are larger, the maximum is 2.7℃(at 7:00). Because the influences of different factors, in the same day the urban heat island appear, the urban cold island may appear too. 3. The variation of the urban heat island in rooftop is different from that on the ground. The maximum appears 14:00 of fine day. The mechanism responsible for urban heat island is the differences in the rooftop and on the ground. 4. The air temperatures over the rooftop are larger than over the ground. That expressed that the rooftop is the second thermodynamic surface in the urban area. There exist differences of vertical variations of the air temperature in the urban and suburban areas. 5. Because the position and the character of surface and the sky condition are different over the rooftop and on the ground in the urban and the suburban areas, the characteristics of the urban climate are different.

中图分类号: 

  • P463.3