Development of the Nonstationary Incremental Analysis Update Algorithm for Sequential Data Assimilation System

<div>The time averaged (from day 0 to day 10) RMSE with respect to the assimilation interval using the EKF (black bar), the NIAU (red bar), and the IAU (blue bar) methods. Note that the dotted line denotes the 95% confidence level of the IAU using a bootstrap method.</div>

Advances in Meteorology

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Figure 4

Figure 4: Development of the Nonstationary Incremental Analysis Update Algorithm for Sequential Data Assimilation System 