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利用清代志桩涨水尺寸和雨分寸记录、近现代器测水文与降雨数据等多种资料,重建/修正了永定河卢沟桥断面和黄河三门峡断面1766-2004年的汛期径流量(m3/s),其在夏秋汛期的多年平均径流量分别为109.0 m3/s和5121.1 m3/s。并依据多年径流量平均值±1个标准差值得出了新的丰—枯水发生年表。小波分析显示两者具有较为明显的30~40年周期,1920年之后,永定河持续性的枯流使河流水量变化周期消失,黄河中游的高频周期则更加发育。两者在1780-1900年存在20年尺度上的变化同步性现象,而1840-1860年代和1890-1910年代两者出现了明显的反相位现象。从1766年以来的情况分析,中国东部季风区进入20世纪暖期之后,黄河中游与永定河卢沟桥以上流域的汛期降雨基本为反相关关系。
Based on the data of waterlogging and rainfall in Qing Dynasty, hydrologic data and rainfall data in modern times, the runoff of the Lugouqiao section of the Yongding River and the Sanmenxia section of the Yellow River in 1766-2004 was reconstructed / corrected (m3 / s ), Its average annual runoff in summer and autumn flood season were 109.0 m3 / s and 5121.1 m3 / s, respectively. According to the average value of multi-year runoff ± 1 standard deviation, a new chronology of abundance-low water occurrence was obtained. Wavelet analysis shows that both of them have obvious period of 30-40 years. After 1920, persistent dry flow of Yongding River disappeared the period of river water change, and high frequency period of middle reaches of Yellow River developed more. Both of them have the phenomenon of change synchronism on the scale of 20 years from 1780 to 1900, but obvious antiphase phenomenon appeared between 1840 to 1860 and 1890 to 1910. From the analysis of the situation since 1766, after the monsoon region in east China entered the warm period of the 20th century, the precipitation in the upper reaches of the Yellow River and the waters above the Lugou Bridge over the Yongding River was basically inversely related.