古洪水流量的误差计算

FHError Evaluation for Paleoflood Discharge

古洪水研究已在大型工程如长江三峡、黄河小浪底等的设计洪水中得到运用，取得了令人瞩目的成功，但古洪水流量的推求与实测流量的计算往往有比较大的差别。根据随机误差的传播理论，给出了一般情况下的古洪水流量推求的误差计算公式。以小流底２３６０ａＢＰ古洪水流量随机误差的计算为例。

There is a difference between evaluation of paleoflood discharge and calculation of observed flood discharge. Based on the propagation theory of random error, the calculation formula for evaluation of random error of paleoflood discharge in general case is given in this paper. And an example to the random error calculation for 2360 aBP paleoflood discharge at Xiaolangdi Project is applied.