《Table 5.Time-averaged values of the RMSE of the three states of the Lorenz-63 model with different

《Table 5.Time-averaged values of the RMSE of the three states of the Lorenz-63 model with different   提示:宽带有限、当前游客访问压缩模式
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《Data Assimilation Method Based on the Constraints of Confidence Region》


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It is also interesting to study the estimated inflation values of the three methods with different initial condition settings.As we know,the initial state is biased and the variance inflation technique should be adopted in the first several steps.Here,we consider the mean value of the inflation parameter estimation in the first six steps.Table 5 gives the mean value of the inflation parameter with an increase in the bias of the initial state settings.From this table,we can see that the estimation of the inflation parameter of the new method is more reasonable than the other two methods.That is,when the deviation of the initial state is zero,a smaller inflation should be adopted,and with an increase in the deviation,the inflation parameter should also increase.The inflation estimation of the W-B method is always very large,and the variation of the SLS method is not as reasonable as the new method.