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An Ensemble Kalman Filter for severe dust storm data assimilation over China

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Figure

Table 1. Number of valid PM 10 observations after quality control over North China during 15–25 March 2002.
Fig. 2. Correlations (line contours) of surface concentrations with those at different points denoted by the black dots directly estimated from ensemble perturbations at 03:00 UTC on 16 March 2002
Fig. 3. As in Fig. 2, but at 03:00 UTC on 20 March 2002.
Fig. 4. Comparison of the root mean square (RMS) error between observed daily-mean PM 10 levels and predicted 24 h-averaged dust aerosol concentrations (d<10 µm) without assimilation (line  rect-angle) and the analyses of EnKF assimilation (shaded rectr
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