文章详细信息 关键词： “开关”;;变分资料同化;;梯度;;伴随方法 [gap=753]Keywords: "on-off"switch;variational data assimilation;gradient;adjoint methods
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four-dimensional variational data assimilation 四维变分同化 ; 四维变分资料同化
D variational data assimilation 四维变分同化
-d variational data assimilation 四维变分同化
variational data assimilation vda 变分资料同化
-dimensional variational data assimilation 三维变分资料同化
4-D variational data assimilation 四维变分同化
3-dimensional variational data assimilation 三维变分资料同化
It is a key problem of variational data assimilation to describe the background error covariance.
实际大气单变量背景场误差协方差接近各向同性,准确描述背景场误差协方差是做好变分资料同化的一个关键问题。
参考来源 - 背景场误差协方差估计技术的应用研究Background error covariance is very important to assure exclusive result, to govern the amount of smoothing of the observed information and to decide relationships between different variables in variational data assimilation.
在变分同化方法中，背景误差协方差矩阵对保证变分问题解的唯一性及分析的平滑性，反映不同变量之间的关系有着非常重要的作用。
参考来源 - 背景场误差的结构特征及其对三维变分同化影响的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
In this paper, the variational data assimilation of two kinds of physical model including "on-off"...
本文研究了两类含有“开关”的物理过程的变分资料同化问题。
Ideal experiments are also conducted to verify the effect of the regularization method on variational data assimilation.
并通过数值试验进一步肯定正则化理论在资料同化中的作用。
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。
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