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The Impact of COVID‐19 on Weather Forecasts: A Balanced View
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2021
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Source: Geophysical Research Letters, 48(4)
[PDF-3.78 MB]
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Journal Title:Geophysical Research Letters
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Description:Aircraft reports are an important source of information for numerical weather prediction (NWP). From March 2020, the COVID-19 pandemic resulted in a large loss of aircraft data but despite this it is difficult to see any evidence of significant degradation in the forecast skill of global NWP systems. This apparent discrepancy is partly because forecast skill is very variable, showing both day-to-day noise and lower frequency dependence on the mean state of the atmosphere. The definitive way to cleanly assess aircraft impact is using a data denial experiment, which shows that the largest impact is in the upper troposphere. The method used by Chen (2020, https://doi.org/10.1029/2020gl088613) to estimate
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Source:Geophysical Research Letters, 48(4)
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ISSN:0094-8276;1944-8007;
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Rights Information:CC0 Public Domain
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Rights Statement:Crown Copyright. © 2020. Commonwealth of Australia. This article is published with the permission of the Controller of HMSO and the Queen's Printer for Scotland. This article has been contributed to by US Government employees and their work is in the public domain in the USA.
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