主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2016, Vol. 32 ›› Issue (6): 27-33.doi: 10.3969/j.issn.1673-503X.2016.06.004

• 论文 • 上一篇    下一篇

南京地区城郊降雨差异特征分析

陈圣劼1, 尹东屏2, 李玉涛3, 孙燕1, 李超1   

  1. 1. 江苏省气象台, 江苏 南京 210008;
    2. 江苏省气象服务中心, 江苏 南京 210008;
    3. 江苏省气象信息中心, 江苏 南京 210008
  • 收稿日期:2015-08-06 修回日期:2016-01-11 出版日期:2016-12-31 发布日期:2016-12-31
  • 通讯作者: 尹东屏,E-mail:ydpyl@sina.com。 E-mail:ydpyl@sina.com
  • 作者简介:陈圣劼,女,1987年生,工程师,主要从事中短期天气预报技术研究,E-mail:chenshengjieshiz@163.com。
  • 基金资助:
    江苏省科技厅科技支撑计划-社会发展项目(BE2011818)和公益性行业(气象)科研专项(GYHY201506006)共同资助。

Analysis of differences of rainfall between urban and rural regions in Nanjing

CHEN Sheng-jie1, YIN Dong-ping2, LI Yu-tao3, SUN Yan1, LI Chao1   

  1. 1. Jiangsu Meteorological Observatory, Nanjing 210008, China;
    2. Jiangsu Meteorological Service Center, Nanjing 210008, China;
    3. Jiangsu Meteorological Information Center, Nanjing 210008, China
  • Received:2015-08-06 Revised:2016-01-11 Online:2016-12-31 Published:2016-12-31

摘要: 利用2009-2013年南京市71个加密自动气象站逐时降水观测资料,对南京地区城郊降雨差异的特征进行了分析。结果表明:南京地区城市“雨岛效应”存在明显的季节差异,城市“雨岛效应”集中出现在6-8月,尤其是7月和8月,而南京地区其他季节城郊降雨无明显差异。对于不同量级的降雨,南京地区小雨、中雨和大雨的降雨量城郊差异均不显著;而城市化使南京地区6-8月暴雨和短时强降水的城郊差异较明显,城区暴雨发生频次和强度及短时强降水的发生频次均高于周边郊区,易形成城市洪涝灾害。城市化进程对一般性降雨的城郊差异影响较小,但城市化使城区夏季暴雨和短时强降水等灾害性降水事件明显加强。

关键词: 暴雨, 短时强降水, 雨岛效应, 城市化

Abstract: The differences of rainfall between urban and rural regions in Nanjing from 2009 to 2013 were analyzed based on the hourly rainfall observation data from 71 intensive automatic stations.The results indicate that there is an obvious seasonal difference for the rain-island effect in the urban region.The urban rain-island effect mainly occurs in June to August,especially in July and August.There is no significant difference in rainfall amounts between urban and rural regions in the other seasons.The rainfall amounts for light,moderate and heavy rains also have no apparent differences between both of the regions,However,there are evident differences in rainstorm and short-time heavy rainfall during June to August in Nanjing due to the urbanization.The rainstorm frequency and intensity and the frequency of the short-time heavy rainfall in the urban region are higher than those in the rural region.So,it is easy to form an urban flood disaster.The urbanization has little impact on the differences in general rainfall between urban and rural regions,while it significantly makes the disaster rainfall events,such as summer rainstorm and the short-time heavy rainfall intensification.

Key words: Rainstorm, Short-time heavy rainfall, Rain-island effect, Urbanization

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