Application of improved multivartiate variance analysis method in study on water level variation process in Yellow River
Application of improved multivartiate variance analysis method in study on water level variation process in Yellow River
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DOI：
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发表时间：
2003
影响因子：
2.4
通讯作者：
Yuan Yong-sheng
中科院分区：
文献类型：
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作者：
Yuan Yong-sheng
提出了一种改进的多元方差分析方法，选取黄河夹河滩-高淳河段3次典型洪水的水文资料，分析了水沙因子不同配置对水位变化过程的非线性扰动，拟合得到了基于最小二乘原理的高精度非线性模型，并将该模型应用于黄河其他河段的水文资料拟合。结果表明，该模型具有较好的拟合效果，可用于黄河下游水文资料的拟合此外，还分析了泥沙淤积对黄河下游水位的影响及模型参数波动的原因。
An improved multivariate variance analysis method is proposed.The hydrological data of 3 typical floods in river section from Jiahetan to Gaochun of Yellow River are selected to analyze the nonlinear disturbance of the water level variation process using different allocation of water and sediment factors.A high precision nonlinear model based on least square principle is obtained by fitting.This model is applied to the fitting of hydrological data in other years.Furthermore,the effect of sedimentation on water level in lower Yellow River and causes of flucturation of model parameters are also analyzed.