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本文在对区域统计参数C_u,C_s,C_k和Q_(max)/Q_m分布规律的研究基础上,提出了推求洪水总体分布形式的模拟方法,并选用顺序实测统计量和相对应模拟值的最大离差作为检验指标。为了使实测资料和生成资料能达到最大限度的吻合,分别对各分布参数进行优选。结果表明:湖北省清江区域(16个测站,具有20年同期实测资料)的统计参数C_u,C_s,C_k和Q_(max)/Q_m,可以用概化极值分布进行模拟,在给定精度下达到最佳拟合。本文所提出的方法为探索水文总体分布规律开创了一条新的途迳,具有一定的理论和实用价值。
Based on the study of distribution rules of regional statistical parameters C_u, C_s, C_k and Q_ (max) / Q_m, this paper proposes a simulation method for estimating the distribution of floods in general and selects the maximum value of the observed statistics and the corresponding simulated values Poor as a test indicator. In order to make the measured data and generated data to achieve the maximum agreement, the distribution parameters were optimized. The results show that the statistical parameters C_u, C_s, C_k and Q_ (max) / Q_m in Qingjiang area of Hubei Province (16 stations, with the data measured over the same period of 20 years) can be simulated by generalized extreme value distribution. Get the best fit. The proposed method opens up a new way for exploring the general distribution of hydrology and has certain theoretical and practical value.