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Application of Correlation Analytical Method into Basin Runoff Forecast with Single-gauge Rainfall

机译：相关分析法在单径流域径流预报中的应用

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Rainfall data of some gauges in the basin is often insufficient. The problem is how to calculate basin-wide average rainfall according to single-gauge rainfall. First, bivariate correlation analysis and partial correlation analysis were introduced. Secondly, taking Hunhe basin in Liaoning province as an example, the correlativity and extent of correlation between single-gauge rainfall and basin-wide average rainfall were studied, and the significance level of correlation coefficients was verified. The result proved that the single-gauge rainfall has high positive correlation with basin-wide average rainfall. Thirdly, the correlograms were established to estimate basin-wide average rainfall even if there is only single-gauge rainfall in the whole basin. With the correlograms historic floods were manipulated according to single-gauge rainfall, and the precision is supernal. The correlation analytical method can be used to forecast runoff for the basins where basin-wide average rainfall is imperfectly gauged. The application shows that this method is simple and feasible.
机译：流域某些雨量器的降雨数据通常不足。问题是如何根据单轨雨量来计算流域范围内的平均降雨量。首先，介绍了双变量相关分析和偏相关分析。其次，以辽宁省浑河盆地为例，研究了单轨降水与全流域平均降水的相关性和相关程度，并验证了相关系数的显着性水平。结果表明，单轨雨量与全流域平均雨量高度正相关。第三，建立了相关图以估计全流域的平均降雨量，即使整个流域只有单轨降雨。借助相关图，历史洪水是根据单轨降雨进行处理的，其精度是一流的。相关分析法可以用来预测流域范围内平均降水量不完善的流域的径流。应用表明，该方法简单可行。

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