中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
Regional Patterns of Extreme Precipitation and Urban Signatures in Metropolitan Areas

文献类型：期刊论文

作者Zhang, Yongyong1; Pang, Xuan1; Xia, Jun2; Shao, Quanxi3; Yu, Entao4,5; Zhao, Tongtiegang6; She, Dunxian2; Sun, Jianqi4,5; Yu, Jingjie1; Pan, Xinyao7
刊名JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
出版日期2019-01-27
卷号124期号:2页码:641-663
关键词extreme precipitation metrics urban signatures regional classification causal relationship metropolitan area
ISSN号2169-897X
DOI10.1029/2018JD029718
通讯作者Zhang, Yongyong(zhangyy003@igsnrr.ac.cn)
英文摘要Observations show that metropolitan areas throughout China, which are experiencing rapid urbanization, may have enhanced extreme precipitation. However, the underlying urban-induced mechanism is poorly understood, particularly for entire characteristics of extreme precipitation. Focusing on the Beijing metropolitan area, we investigate regional patterns of extreme precipitation characterized by magnitude, frequency, duration, and timing metrics according to daily observations from 1975 to 2015 at 20 weather stations. Urbanization effects are explored by physical metrics of urbanization, including area, complexity, fragmentation, and dominance deduced from five periods of land use maps. Results show that the magnitudes and frequencies of extreme precipitation have decreased over time, the consecutive precipitation days have been extended, and the Julian date of maximum precipitation has been delayed. Temporal trends at 40% of weather stations are significant. According to precipitation metrics and geographical features, three representative regions are identified: the central urban region, the windward slope of topographic area, and the mountainous region. Compared with the metrics in mountainous region, the magnitudes of windward slope and central urban region are 24.3-60.6% and 5.9-47.3% greater, respectively; the frequencies are increased by 1.17 and 1.10days, respectively; and the average date of maximum precipitation values are delayed by 7.0 and 4.0days, respectively. The magnitudes and frequencies are enhanced by expansion of urban area, complexity, fragmentation, dominance, and heat islands. The durations are positive for urban area and dominance but negative for urban complexity, fragmentation, and heat islands. Furthermore, the effects in central urban region are more significant due to high urbanization rates.
WOS关键词CONVECTIVE PRECIPITATION ; FLOW REGIMES ; HEAT ; URBANIZATION ; CLIMATE ; IMPACT ; CLASSIFICATION ; SENSITIVITY ; FREQUENCY ; SURFACES
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23040301] ; National Natural Science Foundation of China[41671024] ; International Fellowship Initiative, IGSNRR, CAS[2017VP04]
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000458845300012
出版者AMER GEOPHYSICAL UNION
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; International Fellowship Initiative, IGSNRR, CAS
源URL[http://ir.igsnrr.ac.cn/handle/311030/49433]  
专题中国科学院地理科学与资源研究所
通讯作者Zhang, Yongyong
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China
2.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan, Hubei, Peoples R China
3.CSIRO Data 61, Wembley, WA, Australia
4.Chinese Acad Sci, Inst Atmospher Phys, Nansen Zhu Int Res Ctr, Beijing, Peoples R China
5.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Jiangsu, Peoples R China
6.Sun Yat Sen Univ, Dept Water Resources & Environm, Guangzhou, Guangdong, Peoples R China
7.Beijing Water Sci & Technol Inst, Beijing, Peoples R China
8.China Inst Water Resources & Hydropower Res, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Yongyong,Pang, Xuan,Xia, Jun,et al. Regional Patterns of Extreme Precipitation and Urban Signatures in Metropolitan Areas[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(2):641-663.
APA Zhang, Yongyong.,Pang, Xuan.,Xia, Jun.,Shao, Quanxi.,Yu, Entao.,...&Zhai, Xiaoyan.(2019).Regional Patterns of Extreme Precipitation and Urban Signatures in Metropolitan Areas.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(2),641-663.
MLA Zhang, Yongyong,et al."Regional Patterns of Extreme Precipitation and Urban Signatures in Metropolitan Areas".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.2(2019):641-663.

入库方式： OAI收割

来源：地理科学与资源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。