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Frequency Analysis of Extreme Rainfall in Dawen River Basin Based on Regional L-Moments Method
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Jiu-yue XIE1, Cheng GUO2, Qin WANG2, Yi-ming HU1, Jun WANG1
Water Resources and Power | 2023, 41(3) : 1 - 4
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Water Resources and Power | 2023, 41(3): 1-4
• HYDROLOGY，WATER RESOURCES AND ENVIRONMENT •
Frequency Analysis of Extreme Rainfall in Dawen River Basin Based on Regional L-Moments Method
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Jiu-yue XIE1, Cheng GUO2, Qin WANG2, Yi-ming HU1, Jun WANG1
Affiliations
  • 1.College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
  • 2.Shandong Hydrology Center, Jinan 250014, China
Published: 2023-03-25 doi: 10.20040/j.cnki.1000-7709.2023.20221085
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Taking Dawen River Basin in Shandong Province as an example, Mann-Kendall method was used to analyze the consistency of the 6 h, 12 h, 24 h and 3 d annual extreme rainfall data. The regional linear moment method was used to infer the design value of the site rainstorm, and the regional design value was compared with the single-station linear moment method. The spatial distribution map of the design value of the 50-year rainstorm in Dawen River Basin was drawn. The results show that the Dawen River Basin can be divided into 3 hydrometeorological homogeneous regions, and the optimal distribution frequency linetype is dominated by the generalized extreme-value distribution (GEV). The difference (mean absolute relative error) between the results of single-station L-moment frequency analysis method and regional L-moments frequency analysis method decreases with the increase of the length of the sample series, and the larger the return period is, the greater the gap is; The spatial distribution of the designed rainstorm values in Dawen River Basin is not uniform, but the distribution trend of each period is basically similar.

regional L-moments method  /  hydrometeorological homogeneous region  /  temporal and spatial distribution of extreme rainfall design value  /  Dawen River Basin
Jiu-yue XIE, Cheng GUO, Qin WANG, Yi-ming HU, Jun WANG. Frequency Analysis of Extreme Rainfall in Dawen River Basin Based on Regional L-Moments Method[J]. Water Resources and Power, 2023 , 41 (3) : 1 -4 . DOI: 10.20040/j.cnki.1000-7709.2023.20221085
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Year 2023 volume 41 Issue 3
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20221085
  • Receive Date：2022-04-22
  • Online Date：2026-01-28
  • Published：2023-03-25
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  • Received：2022-04-22
  • Revised：2022-06-08
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Affiliations
    1.College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
    2.Shandong Hydrology Center, Jinan 250014, China
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表12种不同金属材料的力学参数
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Number of
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Number of
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
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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