基于假设检验的径流资料一致性审查

Consistency review of runoff data based on hypothesis testing

水文资料系列的一致性检验方法较多,优劣难辨,各有所长。针对在水资源量计算工作中经常遇到的资料一致性分析,提出了利用高效简便的假设检验法对流域或区域径流资料进行审查。针对林家村水文站1973-2018年径流量资料,用F检验、t检验分别对林家村(三)站、林家村站与林家村(合)站方差与均值进行了检验,实例数据通过检验,说明宝鸡峡灌区引水不会破坏林家村(合)站和下游的林家村(三)站径流资料的一致性,也验证了假设检验方法可以应用于水文资料的一致性审查中。

There are many methods for the consistency test of hydrological data series, and it is difficult to distinguish the pros and cons, and each has its own strengths. Aiming at the data consistency analysis often encountered in the calculation of water resources, an efficient and simple hypothesis testing method is proposed to review the watershed or regional runoff data. According to the runoff data of Linjiacun Hydrological Station from 1973 to 2018, the variance and mean of Linjiacun(3) cross-section, Linjiacun cross-section, and Linjiacun(combined) cross-section, were tested by F test and t test respectively. The example data passed the test. It shows that water diversion from Baojixia Irrigation Area will not damage the consistency of runoff data between Linjiacun(combined) cross-section, and downstream Linjiacun(3) cross-section, and it also verifies that the hypothesis testing method can be applied to the consistency review of hydrological data.