Research Article
Modifying Covariance Localization to Mitigate Sampling Errors from the Ensemble Data Assimilation
Figure 8
Experiment results with the SPEEDY model. Global mean 6-day forecast RMSEs averaged from 0000 UTC 1 March to 0000 UTC 1 May for (a) zonal wind (ms−1) at the fourth model level (∼510 hPa), (b) temperature (K) at the second model level (∼835 hPa), (c) specific humidity (gkg−1) at the lowest level (∼925 hPa), and (d) surface pressure (hPa).
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