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The ECMWF (European Centre for Medium-Range Weather Forecasts) has published an article about the topic on 24 March 2020: By 23 March there was a reduction of 65% in [European aircraft] reports received compared to 3 March. Globally the reduction was about 42%. [...] In 2019 a test was run: a series of forecasts without using aircraft reports (but ...


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Is there a project that tracks and publishes data regarding weather prediction errors on a regular basis that would help with analyzing the correlation between incoming data and prediction error? The World Meteorological Organization has several initiatives that track forecast performance. See for example here. The data is a bit delayed, as of today (Apr 5, ...


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Welcome to Earth Science SE! Given that the crisis is still ongoing, I doubt we know the full extent of the impact (forecasting the weather is hard enough, forecasting the impact of a pandemic is outside my expertise). But, at least one conference was supposed t o go to was cancelled. And I know the lack of airplane obs is impacting data assimilation. ...


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