[1]赵国永,韩艳,刘明华,等.1961-2013年河南省极端降水事件时空变化特征[J].水土保持研究,2018,25(06):115-120.
　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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1961-2013年河南省极端降水事件时空变化特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 25 期数: 2018年06期 页码: 115-120 栏目: 出版日期: 2018-10-26
Title:
Spatial-temporal Variation of Extreme Precipitation Events in Henan Province from 1961 to 2013
作者:
赵国永1,2,3, 韩艳1,2, 刘明华1,2, 侯俊丽1, 时海萍1, 刘维真1, 郭伊利1, 乔强1
1. 信阳师范学院 地理科学学院, 河南 信阳 464000;
2. 信阳师范学院 气候与环境演变重点实验室, 河南 信阳 464000;
3. 信阳师范学院 南北过渡带研究中心, 河南 信阳 464000
Author(s):
ZHAO Guoyong1,2,3, HAN Yan1,2, LIU Minghua1,2, HOU Junli1, SHI Haiping1, LIU Weizhen1, GUO Yili1, QIAO Qiang1
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
关键词:
河南省; 极端降水指数; 时空变化
Keywords:
Henan Province; extreme precipitation indices; spatial-temporal variation
分类号:
P426
摘要:
以1961—2013年河南省17个站点逐日降水量数据为研究对象，运用Sen’s倾向估计、Mann-Kendall显著性检验和空间插值等方法，分析了河南省11个极端降水指数时间和空间变化特征及其影响因素。结果表明：（1）过去53年，河南省极端降水指数变化趋势不显著。（2）河南省区域内，东南部极端降水量、降水日数、降水强度大于西北部。过去53年，商丘和西华降水量、降水日数和降水强度显著增加，而安阳、新乡、孟津、三门峡等地显著减少。（3）将河南省极端降水指数与其他区域进行了比较表明，极端降水指数存在区域性差异。（4）极端降水指数与纬度因素之间相关性强于经度和海拔因素。（5）除CDD指数外，其余指数与年总降水量均具有较高相关性。其中，极端降水量（R95p）、年降水日数降水量（R10，R20和R25）对年总降水量贡献最大。
Abstract:
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.

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备注/Memo

收稿日期:2017-11-23;改回日期:2018-02-08。
基金项目:国家自然科学基金（41602187）；河南省科技计划项目（162102310123）；河南省高等学校重点项目（17A170011）；信阳师范学院资助项目（0201306，2015GGJS-01）
作者简介:赵国永(1985-),男,河南开封人,博士,副教授,主要从事气候变化与环境演变研究。E-mail:zhaogy@xynu.edu.cn
通讯作者:韩艳(1985-),女,河南许昌人,硕士,讲师,主要从事气候变化研究。E-mail:hanyan@xynu.edu.cn

更新日期/Last Update: 1900-01-01