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Position: Home > Articles > Research on the Summer Precipitation Variation in Anhui Province and the Influence on Drought-Flood Journal of Anhui Agricultural Sciences 2008,36 (7) 2870-2873

安徽省夏季降水变化及其对旱涝的影响研究

作  者:
王胜;鲁俊;吴必文;陈正洪
单  位:
安徽省气候中心;武汉区域气候中心
关键词:
夏季;线性趋势;周期性;旱涝灾害
摘  要:
[目的]探讨安徽省夏季降水变化对旱涝灾害的影响。[方法]通过对降水时间序列线性趋势分析、距平计算和小波变换来研究降水变化规律;采用旱涝Z指数计算气候旱涝指数。[结果]结果表明:夏季降水强度增强趋势明显,极端降水事件增多,以淮北显著;夏季淮北准2年和准8年周期振荡较明显,沿江江南准16年周期较明显;全省平均入梅日期6月16日,出梅为7月10日,梅雨量年际变幅大。[结论]安徽省极端降水事件有增加的趋势,气候旱涝灾害频繁现象从20世纪90年代起越来越明显。
译  名:
Research on the Summer Precipitation Variation in Anhui Province and the Influence on Drought-Flood
作  者:
WANG Sheng et al (Anhui Province Climate Center,Hefei,Anhui 230031)
关键词:
Summer;Linear tendency;Periodicity;Drought-flood disaster
摘  要:
[Objective]The research aimed to study the influence on drought-flood by summer precipitation variation in Anhui province.[Method] The rule of precipitation variation was studyed by the analysis of precipitation time sequence linear,anomaly calculation and wavelet transform.The climate index of drought and flood was calculated by the Z-index.[Results]The trend of summer precipitation intensity in Anhui province was strenthened and extreme precipitation events growed in number,Huaibei district most significant.The mean date of the Meiyu onset was June 16 and the end of Meiyu period was July 10.The annual variation of Meiyu rainfall was obvious.[Conclusion] The disaster of drought-flood in Anhui province happened more frequently from the 1990s.

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