Impact of urbanization on regional extreme precipitation trends observed at China national station network
An enhanced extreme precipitation (EXP) in or near cities compared to rural areas has been widely observed and verified in individual urban sites. However, at a sufficiently large region, the robustness of evidence for the urbanization contribution to the estimate of EXP trends is still lacking. Her...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Weather and Climate Extremes |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212094725000180 |
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| author | Suonam Kealdrup Tysa Guoyu Ren Panfeng Zhang Siqi Zhang |
| author_facet | Suonam Kealdrup Tysa Guoyu Ren Panfeng Zhang Siqi Zhang |
| author_sort | Suonam Kealdrup Tysa |
| collection | DOAJ |
| description | An enhanced extreme precipitation (EXP) in or near cities compared to rural areas has been widely observed and verified in individual urban sites. However, at a sufficiently large region, the robustness of evidence for the urbanization contribution to the estimate of EXP trends is still lacking. Here, we present clear evidence from observational records of a dense national station network that a significant urbanization-induced increase in annual EXP changes across mainland China (p < 0.01), which is detectable through urban‒rural comparative analysis. This urbanization effect accounts for approximately one-third of the observed EXP trends from 1960 to 2018. The results also indicate that urbanization significantly influences the frequency of EXP changes. The positive effect is especially noticeable in the humid climate zones of the southeastern China monsoon region, excluding coastal zones. Our analysis shows that the observed increase in regional EXP is more complex, and the observational data bias related to urbanization has to be considered in the large-scale detection and attribution of extreme precipitation changes. |
| format | Article |
| id | doaj-art-731925170a404abf93354ec7f08fb5f8 |
| institution | DOAJ |
| issn | 2212-0947 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Weather and Climate Extremes |
| spelling | doaj-art-731925170a404abf93354ec7f08fb5f82025-08-20T03:00:58ZengElsevierWeather and Climate Extremes2212-09472025-06-014810076010.1016/j.wace.2025.100760Impact of urbanization on regional extreme precipitation trends observed at China national station networkSuonam Kealdrup Tysa0Guoyu Ren1Panfeng Zhang2Siqi Zhang3State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, 810000, China; Department of Atmospheric Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430070, China; State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing, 100084, ChinaDepartment of Atmospheric Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430070, China; Laboratory for Climate Studies, National Climate Center, China Meteorological Administration, Beijing, 100081, China; Corresponding author. Department of Atmospheric Science, School of Environmental Studies, China University of Geosciences, Wuhan, 430070, ChinaCollege of Geographical Sciences and Tourism, Jilin Normal University, Siping, 136000, ChinaLaboratory for Climate Studies, National Climate Center, China Meteorological Administration, Beijing, 100081, ChinaAn enhanced extreme precipitation (EXP) in or near cities compared to rural areas has been widely observed and verified in individual urban sites. However, at a sufficiently large region, the robustness of evidence for the urbanization contribution to the estimate of EXP trends is still lacking. Here, we present clear evidence from observational records of a dense national station network that a significant urbanization-induced increase in annual EXP changes across mainland China (p < 0.01), which is detectable through urban‒rural comparative analysis. This urbanization effect accounts for approximately one-third of the observed EXP trends from 1960 to 2018. The results also indicate that urbanization significantly influences the frequency of EXP changes. The positive effect is especially noticeable in the humid climate zones of the southeastern China monsoon region, excluding coastal zones. Our analysis shows that the observed increase in regional EXP is more complex, and the observational data bias related to urbanization has to be considered in the large-scale detection and attribution of extreme precipitation changes.http://www.sciencedirect.com/science/article/pii/S2212094725000180UrbanizationExtreme precipitationObservational datasetLong-term trendMainland China |
| spellingShingle | Suonam Kealdrup Tysa Guoyu Ren Panfeng Zhang Siqi Zhang Impact of urbanization on regional extreme precipitation trends observed at China national station network Weather and Climate Extremes Urbanization Extreme precipitation Observational dataset Long-term trend Mainland China |
| title | Impact of urbanization on regional extreme precipitation trends observed at China national station network |
| title_full | Impact of urbanization on regional extreme precipitation trends observed at China national station network |
| title_fullStr | Impact of urbanization on regional extreme precipitation trends observed at China national station network |
| title_full_unstemmed | Impact of urbanization on regional extreme precipitation trends observed at China national station network |
| title_short | Impact of urbanization on regional extreme precipitation trends observed at China national station network |
| title_sort | impact of urbanization on regional extreme precipitation trends observed at china national station network |
| topic | Urbanization Extreme precipitation Observational dataset Long-term trend Mainland China |
| url | http://www.sciencedirect.com/science/article/pii/S2212094725000180 |
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