双化水库径流还原及其成果的应用

Restoration of annual runoff series for Shuanghua Reservoir and application of its achievement

云龙水库是大型水利工程中少有的水文资料短缺的水库工程。整个流域内仅有上游已建中型工程双化水库1960年以来的水库水文观测资料,但观测不正规且大多数年份未进行整编。通过对双化水库水文资料整编过程、入库径流还原及成果合理性进行修正,最终使双化水库的径流还原成果基本达到水文站实测径流成果的精度,为云龙水库径流分析和40余年径流系列的推求获得了宝贵的参证站资料,经过云龙水库近年来的运行证明,双化水库径流还原修正后的成果应用于云龙水库具有较高的精度。

Yunlong Reservoir is peculiar one among the large water control projects that is short of hydrological data, of which the whole drainage area has only the hydrologic data measured since 1960 from an existed reservoir-Shuanghua Reservoir on the upstream, but the data were irregularly measured and the data of most of the years had not been compiled. Based on the introduction of the compilation of the hydrologic data of Shuanghua Reservoir, the restoration of the annual reservoir runoff series and the rea- sonable method for the revision of the achievement, the achievement from the annual runoff series restoration of Shuanghua Reser- voir has finally met the precision of the actually measured data from the hydrologic stations concerned basically. The achievement has obtained valuable reference data for both the analysis on the runoff of the Yunlong Reservoir and the calculation of the annual runoff series of about 40 years. After the operation of Yunlong Reservoir in recent years, it is demonstrated that the achievement from the restoration of the annual runoff series applied to Shuanghua reservoir has a higher precision.