...括逐步订正法、混合分析、最优插值（Optimum Interpolation，OI）分析、三维变分同化（3-Dimensional Variational Assimilation，3DVAR）分析、统计最优估计以及使用截断滤波窗的变分分析。
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3-Dimensional Variational Assimilation 三维变分同化
three-dimensional variational assimilation 三维变分同化
Four-dimensional variational assimilation 变分四维同化
four-dimensional variational assimilation system 四维变分同化系统
four-dimensional variational data assimilation 四维变分同化 ; 四维变分资料同化
3-dimensional variational data assimilation 三维变分资料同化
three-dimensional variational data assimilation 三维变分同化系统
four-dimensional variational data assimilation system 四维变分资料同化系统
This paper does the experiments of Doppler radar's Four-dimensional Variational Assimilation in MM5 model.
本文的工作就是多普勒雷达资料在MM 5模式中的四维变分同化试验。
Furthermore, the conventional observations are done in the MM5 model system, and a four-dimensional variational data assimilation test is made based on observed data.
最后对MM5伴随模式系统进行了梯度检验，并利用实际资料进行四维变分资料同化试验。
The key problem of four-dimensional variational data assimilation method, which solves the constraining numerical predict equations through accompanied model, is how to establish an accompanied model.
应用伴随方法求解以数值预报方程作为约束条件的四维变分资料同化方案，关键问题是如何构造伴随模式。
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