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当前位置: 首页 > 文章 > 1961—2013年河南省极端降水事件时空变化特征 水土保持研究 2018 (6) 115-120
Position: Home > Articles > Spatial-temporal Variation of Extreme Precipitation Events in Henan Province from 1961 to 2013 Research of Soil and Water Conservation 2018 (6) 115-120

1961—2013年河南省极端降水事件时空变化特征

作  者：
赵国永;韩艳;刘明华;侯俊丽;时海萍;刘维真;郭伊利;乔强
关键词：
河南省;极端降水指数;时空变化
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。
译  名：
Spatial-temporal Variation of Extreme Precipitation Events in Henan Province from 1961 to 2013
作  者：
ZHAO Guoyong;HAN Yan;LIU Minghua;HOU Junli;SHI Haiping;LIU Weizhen;GUO Yili;QIAO Qiang;School of Geographic Sciences,Xinyang Normal University;Key Laboratory of Climate Change and Environmental Evolution,Xinyang Normal University;Research Center of North and South Transition Zone in China,Xinyang Normal University;
单  位：
ZHAO Guoyong%HAN Yan%LIU Minghua%HOU Junli%SHI Haiping%LIU Weizhen%GUO Yili%QIAO Qiang%School of Geographic Sciences,Xinyang Normal University%Key Laboratory of Climate Change and Environmental Evolution,Xinyang Normal University%Research Center of North and South Transition Zone in China,Xinyang Normal University
关键词：
Henan Province;;extreme precipitation indices;;spatial-temporal variation
摘  要：
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 R95 p,R10,R20 and R25 mostly contributed to annual total precipitation amount.

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