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| 城市化进程对重庆都市圈降水空间分布的影响 | |
| 引用本文： | 王莉萍, 王铸, 马杰, 王维国, 孙贺, 司丽丽. 2021: 近40 a我国主要城市群降水过程时空分布特征. 暴雨灾害, 40(6): 589-598. DOI: 10.3969/j.issn.1004-9045.2021.06.003 |
| 作者姓名： | 王莉萍 王铸 马杰 王维国 孙贺 司丽丽 |
| 作者单位： | 1.国家气象中心, 北京 100081;2.河北省气象灾害防御中心, 石家庄 050011 |
| 基金项目： | 国家重点研发计划重点专项（2019YFC1510204）；中国气象局决策气象服务专项（JCZX2020018）；国家标准《短时强降雨等级划分》（20211184-T-416） |
| 摘 要： |  基于小时分辨率降水过程辨识和评估方法，利用1980—2019年逐小时降水气象观测资料，分析了京津冀、长三角、珠三角、成渝、长江中游、中原、关中平原等七个城市群在城市不同发展阶段降水过程的年变化和月变化布特征。  |
| 关 键 词： | 城市群 降水过程 年变化 月变化 |
| 收稿时间： | 2021-04-22 |
Rainfall changes in summer caused by St. Louis |
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| WANG Liping, WANG Zhu, MA Jie, WANG Weiguo, SUN He, SI Lili. 2021: Spatio-temporal distribution characteristics of precipitation processes in major urban agglomerations of China in recent 40 years. Torrential Rain and Disasters, 40(6): 589-598. DOI: 10.3969/j.issn.1004-9045.2021.06.003 | |
| Authors: | WANG Liping WANG Zhu MA Jie WANG Weiguo SUN He SI Lili |
| Affiliation: | 1.National Meteorological Center, Beijing 100081;2.Meteorological Disaster Prevention Center of Hebei Province, Shijiazhuang 050011 |
| Abstract: | Based on the identification and evaluation method of hourly resolution precipitation processes, the annually and monthly variations of precipitation processes in different urban development stages were analyzed in seven major urban agglomerations of China, namely the Beijing-Tianjin-Hebei urban agglomeration, Yangtze river delta urban agglomeration, the Pearl River delta urban agglomeration, chengdu-chongqing urban agglomeration, Yangtze river middle reaches urban agglomeration, central plains city, and the guanzhong plain urban agglomeration. The hourly precipitation observation data from 1980 to 2019 were used in this study.  The results showed: the frequency of precipitation processes in the seven urban agglomerations appeared an increasing trend especially after 2010; the frequency of precipitation processes was observed in winter and gradually increased from less to more; the hours of annual average precipitation increased, but the average process hours decreased; the durations of precipitation processes were increasing in March to April and August to September and decreasing in May to July; there were an increasing trend of the extreme + extra-strong + strong precipitation processes; the number of extreme and extra-strong precipitation processes increased significantly in August and September, while the strong precipitation process increased from March to June, and the heavy and medium-intensity precipitation processes increased in winter during the period of rapid urban development. |
| Keywords: | urban agglomeration precipitation processes annually variation monthly variation |
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