1919～1951年黄河水文资料插补延长计算成果分析评价

利用兰州、河口镇、龙门、陕县等黄河干流重要控制站 1919～ 196 0年实测年径流资料 (含插补值 )建立相关关系 ,对采用辗转相关插补延长的成果进行相关检验分析 .通过分析认为 ,插补延长的成果从统计学的角度看是合理的 .通过分析兰州—三门峡 (陕县 )辗转相关回归方程与直接相关回归方程、全部资料相关回归方程的差值 ,说明插补延长的成果是封闭的、合理的 .同时利用 1919～ 195 1年与 195 2～ 1997年天然径流量进行相关对比分析 ,发现河口镇站 1919～ 195 1年天然径流量比 195 2～ 1997年系统偏小 .并对偏小原因作了分析

The Analysis and Assessment of the Interpolation and Prolongation of Yellow River Hydrologic Data Results from 1919 to 1951

Based on the establishment of correlation relationship of actual measurement documents of annual runoff(1919～1960) of the trunk stream given by the important control stations in Lanzhou city,Hekou town,Longmen,and Shan county,the algorithm correlation,interpolation and prolongation results for correlation are analyzed and tested.Through the analysis,it can be seen that the results are rational.By the analysis of the difference between algorithm correlation and direct correlation equation of regression based on the documents of Lanzhou city and Sanmenxia city including Shan county,and correlation equation of regression based on all documents,it can be found out that the results are closed and rational.From the correlation analysis of natural runoff from 1919 to 1951 and natural runoff from 1952 to 1977,it can be shown that the natural runoff amount from 1919 to 1951 is less than it was from 1952 to 1997,and the reason why it is so small is analyzed.