[1]ZHAO Guoyong,HAN Yan,LIU Minghua,et al.Spatial-temporal Variation of Extreme Precipitation Events in Henan Province from 1961 to 2013[J].Research of Soil and Water Conservation,2018,25(06):115-120.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 06
Page number:
115-120
Column:
Public date:
2018-10-26
- Title:
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Spatial-temporal Variation of Extreme Precipitation Events in Henan Province from 1961 to 2013
- Author(s):
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ZHAO Guoyong1,2,3, HAN Yan1,2, LIU Minghua1,2, HOU Junli1, SHI Haiping1, LIU Weizhen1, GUO Yili1, QIAO Qiang1
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1. School of Geographic Sciences, Xinyang Normal University, Xinyang, Henan 464000, China;
2. Key Laboratory of Climate Change and Environmental Evolution, Xinyang Normal University, Xinyang, Henan 464000, China;
3. Research Center of North and South Transition Zone in China, Xinyang Normal University, Xinyang, Henan 464000, China
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- Keywords:
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Henan Province; extreme precipitation indices; spatial-temporal variation
- CLC:
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P426
- DOI:
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- Abstract:
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Daily precipitation data of 17 meteorological stations in Henan Province during 1961—2013 were selected in this study. Some methods, including Sen’s tendency estimation, Mann-Kendall test and spatial analysis, were applied to detect spatial and temporal characteristics of eleven indices of extreme precipitation across Henan Province and their impact factors. The results showed that: (1) extremes precipitation indices across Henan Province presented an indistinctive variation trend during the last 53 years; (2) the extreme precipitation, rainfall days and intensities of precipitation in southeastern Henan Province were stronger than in northwest; the extreme precipitation, rainfall days and intensities of Shangqiu and Xihua exhibited significant increasing trend during the recent 53 years, and presented the decreasing trend in Anyang, Xinxiang, Mengjin and Sanmenxia areas; (3) compared with other regions, variation trend of extreme precipitation indices in Henan Province was different from the results found in the other regions of China, which exhibited regional difference; (4) the correlation between extreme precipitation indices and latitudes was much more significant than those between longitudes and altitude factors; (5) except for CDD, indices had close correlations with annual precipitation amounts. The precipitation of R95p, R10, R20 and R25 mostly contributed to annual total precipitation amount.