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中文摘要: 太阳活动对黄河流域降水有一定影响。引用Morlet小波分析技术,对黄河流域近50年来的降水与太阳黑子的小波系数变化进行分析,表明在1951~1997年期间,黄河流域年降水与太阳黑子在9年时间尺度上呈一定的负相关关系,且降水有1～2年的滞后现象。
中文关键词: 太阳黑子，降水，黄河流域
Abstract:The solar activities might affect precipitation in the Yellow River Basin. The Morlet wavelet method is applied to analyze the changes of wavelet coefficients of precipitation and sunspots at same time scales. The research shows that there are negative correlations between precipitation and sunspots and they are most obvious in 9-year time scale. Furthermore, the precipitation lagged behind the sunspots by 1—2 years.
keywords: sunspots,precipitation,Morlet wavelet
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基金项目:国家重点基础研究规划项目(G1999043605)，中国博士后科学基金项目(2004036209)
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引用文本：
李春晖,杨志峰,2005.太阳活动与黄河流域降水关系分析[J].气象,31(11):42-44.
,2005.Relationship between Solar Activities and Precipitation in the Yellow River Basin[J].Meteor Mon,31(11):42-44.
李春晖,杨志峰,2005.太阳活动与黄河流域降水关系分析[J].气象,31(11):42-44.
,2005.Relationship between Solar Activities and Precipitation in the Yellow River Basin[J].Meteor Mon,31(11):42-44.