Spatial Characteristics and Connectivity of Urban Floods in Eastern China: Insights From a Newly Established Data Set During 2010–2020
Abstract Due to limited data, the spatial characteristics and connectivity of urban floods in eastern China remain poorly understood. In this study, we established a new data set of urban floods in eastern China during 2010–2020, compiled from multiple sources. Based on this data set, our analysis i...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2024GL113017 |
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| _version_ | 1832593506191802368 |
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| author | Zhenghui Lu Linhao Zhong Yang Yang Xinlei Han Xiaoling Jiang Zitong Shi Dabang Jiang |
| author_facet | Zhenghui Lu Linhao Zhong Yang Yang Xinlei Han Xiaoling Jiang Zitong Shi Dabang Jiang |
| author_sort | Zhenghui Lu |
| collection | DOAJ |
| description | Abstract Due to limited data, the spatial characteristics and connectivity of urban floods in eastern China remain poorly understood. In this study, we established a new data set of urban floods in eastern China during 2010–2020, compiled from multiple sources. Based on this data set, our analysis identified four high‐frequency urban flood centers in South, Southeast, Southwest, and North China. Distinct regional differences are revealed for regions from south to north, with monthly peaks shifting from May to August and precipitation thresholds decreasing from high to low. Furthermore, we uncovered widespread interconnections among urban floods both within and across regions by using complex networks analysis. Strong local connectivity within regions is associated with northwestern Pacific subtropical high and moisture flux convergence. Meanwhile, links across regions are significant between Southwest China and both Southeast and North China, with Southwest China vortex likely playing a critical role. |
| format | Article |
| id | doaj-art-e6145ffde25a4075ba645bf53519ea46 |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-e6145ffde25a4075ba645bf53519ea462025-01-20T13:05:57ZengWileyGeophysical Research Letters0094-82761944-80072025-01-01521n/an/a10.1029/2024GL113017Spatial Characteristics and Connectivity of Urban Floods in Eastern China: Insights From a Newly Established Data Set During 2010–2020Zhenghui Lu0Linhao Zhong1Yang Yang2Xinlei Han3Xiaoling Jiang4Zitong Shi5Dabang Jiang6National Institute of Natural Hazards Ministry of Emergency Management of China Beijing ChinaNational Institute of Natural Hazards Ministry of Emergency Management of China Beijing ChinaNational Institute of Natural Hazards Ministry of Emergency Management of China Beijing ChinaNational Institute of Natural Hazards Ministry of Emergency Management of China Beijing ChinaNational Institute of Natural Hazards Ministry of Emergency Management of China Beijing ChinaNational Institute of Natural Hazards Ministry of Emergency Management of China Beijing ChinaNansen–Zhu International Research Centre Key Laboratory of Earth System Numerical Modeling and Application Institute of Atmospheric Physics Chinese Academy of Sciences Beijing ChinaAbstract Due to limited data, the spatial characteristics and connectivity of urban floods in eastern China remain poorly understood. In this study, we established a new data set of urban floods in eastern China during 2010–2020, compiled from multiple sources. Based on this data set, our analysis identified four high‐frequency urban flood centers in South, Southeast, Southwest, and North China. Distinct regional differences are revealed for regions from south to north, with monthly peaks shifting from May to August and precipitation thresholds decreasing from high to low. Furthermore, we uncovered widespread interconnections among urban floods both within and across regions by using complex networks analysis. Strong local connectivity within regions is associated with northwestern Pacific subtropical high and moisture flux convergence. Meanwhile, links across regions are significant between Southwest China and both Southeast and North China, with Southwest China vortex likely playing a critical role.https://doi.org/10.1029/2024GL113017urban floodsextreme rainfallcomplex networks |
| spellingShingle | Zhenghui Lu Linhao Zhong Yang Yang Xinlei Han Xiaoling Jiang Zitong Shi Dabang Jiang Spatial Characteristics and Connectivity of Urban Floods in Eastern China: Insights From a Newly Established Data Set During 2010–2020 Geophysical Research Letters urban floods extreme rainfall complex networks |
| title | Spatial Characteristics and Connectivity of Urban Floods in Eastern China: Insights From a Newly Established Data Set During 2010–2020 |
| title_full | Spatial Characteristics and Connectivity of Urban Floods in Eastern China: Insights From a Newly Established Data Set During 2010–2020 |
| title_fullStr | Spatial Characteristics and Connectivity of Urban Floods in Eastern China: Insights From a Newly Established Data Set During 2010–2020 |
| title_full_unstemmed | Spatial Characteristics and Connectivity of Urban Floods in Eastern China: Insights From a Newly Established Data Set During 2010–2020 |
| title_short | Spatial Characteristics and Connectivity of Urban Floods in Eastern China: Insights From a Newly Established Data Set During 2010–2020 |
| title_sort | spatial characteristics and connectivity of urban floods in eastern china insights from a newly established data set during 2010 2020 |
| topic | urban floods extreme rainfall complex networks |
| url | https://doi.org/10.1029/2024GL113017 |
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