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| 城市化与北京地区降水分布变化初探 | |
| 引用本文： | 王喜全,王自发,齐彦斌,郭虎.城市化与北京地区降水分布变化初探[J].气候与环境研究,2007,12(4):489-495. |
| 作者姓名： | 王喜全 王自发 齐彦斌 郭虎 |
| 作者单位： | 1. 中国科学院大气物理研究所竺可桢-南森国际研究中心,北京,100029 2. 吉林省人工影响天气办公室,长春,130062 3. 北京市气象台,北京,100089 |
| 基金项目： | 国家重点基础研究发展计划(973计划);中国科学院三期创新项目 |
| 摘 要： | 根据北京地区城市化进展的程度,以1980年为分界点,将1961～1980年划分为城市化慢速期,1981～2000年划分为城市化快速期。利用北京地区14个标准气象站40年的降水量资料,研究了城市化对北京地区降水分布的可能影响。初步的研究结果表明:北京地区冬季降水量分布发生了显著的系统性的变化,即城市化缓慢期北京地区南部为降水较多地区,北部为降水偏少地区;城市化快速期相对降水量的分布则正好相反,南部地区变为降水较少地区,而北部变为降水偏多地区。其他季节,北京地区的相对降水量分布并未发生整体性的显著变化。造成冬季降水分布变化的原因可能是随着城市规模的扩大,北京冬季"城市热岛"和"城市干岛"效应增强进而使云下蒸发过程增强,造成城区及南部地区地面降水量减少。至于夏季降水分布并未发生系统性的变化,还需深入研究。以上结果与国内外的相关研究结论大相径庭。 |
| 关 键 词： | 城市化 城市降水 北京 |
| 文章编号： | 1006-9585（2007）04-0489-07 |
| 收稿时间： | 2007-04-13 |
| 修稿时间： | 2007-06-15 |
Preliminary Inspect about the Effect of Urbanization on Precipitation Distribution in Beijing Area |
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| WANG Xi-Quan,WANG Zi-F,QI Yan-Bin and GUO Hu.Preliminary Inspect about the Effect of Urbanization on Precipitation Distribution in Beijing Area[J].Climatic and Environmental Research,2007,12(4):489-495. | |
| Authors: | WANG Xi-Quan WANG Zi-F QI Yan-Bin and GUO Hu |
| Abstract: | According to the urbanization extent of Beijing area,and defining 1980 as the dividing point,the period from 1961 to 1980 is defined as the slow urbanization period,and the period from 1981 to 2000 as the quick urbanization period,and then by using the precipitation data of 40 years and 14 normal standard weather stations,the possible influence of urbanization on the precipitation distribution in Beijing area is presented.The preliminary results concluded that by comparing the relative precipitation distribution,the significant change of precipitation distribution has been occurred in winter between the slow and quick urbanization period.In other words,during the slow urbanization period,the precipitation amount in the South area of Beijing is relatively more than that in the North area,and during the quick urbanization period,the precipitation amount in the South area is relatively less than that in the North area.For the other seasons,the significant and systematical change of the precipitation distribution did not occurred.The above conclusion is different from domestic and overseas relevant similar research results. |
| Keywords: | urbanization urban precipitation Beijing |
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