关于Z～Q关系曲线不确定度调整分析

Analysis on uncertainity regulation about Z～Q relationship curve

水位～流量关系曲线受部分测点的约束 ,定线精度超出标准。利用定线精度指标的随机不确定度推算标准差 ,分析偏大或异常测点 ,确定调整关系曲线线型及处理方式 ,使关系曲线满足精度指标 ,进而提高推求的流量精度。

Because the water level～flow relationship curve is limited by partial survey points,the steady line precision is beyond the level.Utilizing the random uncertainity of steady line precision index to calculate the standard difference,analyzes the big or the abnormal survey point,devide regulation relationship curve shape and the suitable operation method to make relationship curve satisfy the precision index,then to improve the flow precision.