Research Article

The Development of a Hybrid EnKF-3DVAR Algorithm for Storm-Scale Data Assimilation

Figure 3

Horizontal winds (vectors; ms−1), perturbation potential temperature (contours at 1-K intervals), and simulated reflectivity (shaded contours; dBZ) at 250 m AGL for (a) the truth simulation; (b) the 3DVAR analysis; (c) the EnKF analysis; and (d) the hybrid EnKF-3DVAR analysis for the single radar experiment. The time shown is at 100 min (the end of data assimilation cycles). Wind vectors are shown every 2 km.
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(a)
512656.fig.003b
(b)
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(c)
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(d)