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Study on Spatiotemporal Evolution of Short-duration Extreme Precipitation in Hebei Province Considering Topographic Influence
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Jia-cheng LI1a, 1b, Jie WANG1a, 1b, Miao LIU2, Bin-bin WANG3, Yu LIU1a, 1b, Shi-chen SUN1a, 1b
Water Resources and Power | 2025, 43(9) : 15 - 19
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Water Resources and Power | 2025, 43(9): 15-19
Study on Spatiotemporal Evolution of Short-duration Extreme Precipitation in Hebei Province Considering Topographic Influence
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Jia-cheng LI1a, 1b, Jie WANG1a, 1b, Miao LIU2, Bin-bin WANG3, Yu LIU1a, 1b, Shi-chen SUN1a, 1b
Affiliations
  • 1a.School of Hydrology and Water Resources, Nanjing University of Information Science & Technology, Nanjing 210044, China
  • 1b.Key Laboratory of Hydrometeorological Disaster Mechanism and Warning of Ministry of Water Resources, Nanjing University of Information Science & Technology, Nanjing 210044, China
  • 2.Jiangsu Province Hydrology and Water Resources Investigation Bureau, Nanjing 210029, China
  • 3.Jiangsu Yushu Information Technology Co., Ltd., Nanjing 210029, China
Published: 2025-09-25 doi: 10.20040/j.cnki.1000-7709.2025.20250957
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Based on the hourly precipitation data (1980-2019) from 142 national stations in Hebei Province, Mann-Kendall (MK) trend and mutation test, K-means clustering, and hydrometeorologically homogeneous region methods were used to systematically analyze the temporal evolution characteristics and spatial distribution patterns of short-term extreme precipitation in Hebei Province. The results show that significant regional differences exist in interannual variation of short-term extreme precipitation, with an upward trend in high-altitude mountains and a downward trend in low-altitude plains/hills, marked by a 1996 change-point. Topography significantly influences patterns: the spatial extent decreases in plains and southern slopes but expands on northern slopes for 1 h and 3 h durations, indicating a shift towards mountainous areas. Seasonal differences are pronounced: winter/spring increases, while summer and autumn decreases significantly, with third-quarter Rx24h declining at 0.337 mm/a. The research results reveal the spatio-temporal differentiation law of short-term extreme precipitation in Hebei Province, providing a scientific basis for regional flood control and disaster reduction as well as adaptive management to climate change.

short-duration extreme precipitation  /  spatiotemporal analysis  /  hydrometeorologically homogeneous regions  /  trend analysis
Jia-cheng LI, Jie WANG, Miao LIU, Bin-bin WANG, Yu LIU, Shi-chen SUN. Study on Spatiotemporal Evolution of Short-duration Extreme Precipitation in Hebei Province Considering Topographic Influence[J]. Water Resources and Power, 2025 , 43 (9) : 15 -19 . DOI: 10.20040/j.cnki.1000-7709.2025.20250957
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Year 2025 volume 43 Issue 9
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Article Info
doi: 10.20040/j.cnki.1000-7709.2025.20250957
  • Receive Date：2025-04-29
  • Online Date：2025-12-16
  • Published：2025-09-25
Article Data
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History
  • Received：2025-04-29
  • Revised：2025-06-17
Funding
Affiliations
    1a.School of Hydrology and Water Resources, Nanjing University of Information Science & Technology, Nanjing 210044, China
    1b.Key Laboratory of Hydrometeorological Disaster Mechanism and Warning of Ministry of Water Resources, Nanjing University of Information Science & Technology, Nanjing 210044, China
    2.Jiangsu Province Hydrology and Water Resources Investigation Bureau, Nanjing 210029, China
    3.Jiangsu Yushu Information Technology Co., Ltd., Nanjing 210029, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2025.20250957
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多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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