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利用１９５９～１９９７ 年黄河上游地区降水、流量资料，用 Ｅ Ｏ Ｆ、 Ｒ Ｅ Ｏ Ｆ、功率谱、趋势分析等数理统计预报方法，分析黄河上游地区降水与流量之间关系及降水变化趋势，并用逐步回归、最优子集回归方法建立流量预测的最优评估模型。
Based on the data of rainfall and flux in the upper reaches of the Yellow River from 1959 to 1997, the relationship between rainfall and flux in the upper reaches of the Yellow River and the trend of precipitation variation were analyzed by mathematical statistics and forecasting methods such as EOF, R E O F, power spectrum and trend analysis. Stepwise regression, the optimal subset regression method to establish the optimal assessment model of traffic forecasting.