Assimilation of Aircraft Observations in High-Resolution Mesoscale Modeling

Figure 5

Distribution of the differences between the absolute value of model error in Exp. H45V75 and the absolute value of model error of Exp. Control for (a) temperature, (b) dewpoint, (c) wind speed, and (d) wind direction as verified against above-surface observations during the 1–6 h forecast (19 UTC). Bins representing model-observation pairs where the absolute value of model error in Exp. H45V75 is smaller than that in Exp. Control are denoted by “Improvement,” whereas pairs where Exp. H45V75 has the larger error are denoted by “Degradation” but are plotted on the positive -axis to simplify comparison against mirror “Improvement” bins.

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