Satellite observations have been fundamental in improving weather forecast skill over the past two decades on all terms, while few high-quality wind observations were present in the Global Observing System. To depict and initialize the flow on scales smaller than 500 km, wind observations are essential, however, and adding satellite wind observations for predicting dynamical weather has proven to be beneficial. But how are we going to exploit all these wind observations?

The EUMETSAT NWP SAF mesoscale wind data assimilation workshop will address this question and raise expectations for the beneficial use of all these novel wind observing systems. It addresses the spatial scales observed and the errors in satellite winds. For NWP models it provides examples of the spatial scales deterministically modelled, but also the spatial scales which are only realistically modelled and not well initialized. This sets the scene to discuss spatial representation errors, which often... read more

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