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Reply to: Response to limited surface impacts of the January 2021 sudden stratospheric warming
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2023
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Source: Nature Communications, 14(1)
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Journal Title:Nature Communications
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Description:This response addresses concerns expressed in the Matters Arising, Cohen et al.1, published in response to Davis et al.2 Here, we will show that CESM2(WACCM6) is able to reproduce the stratospheric wave reflection and stratospheric wave forcing argued1,3 to be paramount to the February 2021 cold air outbreak, contrary to the claims in Cohen et al.1 We agree that the model does not reproduce the full severity of the cold air outbreak1, potentially due to the inability of the model to fully capture the strength of wave activity flux (WAF) convergence within the trough. However, we will show the strength of this WAF convergence is unrelated to the stratospheric wave dynamics, which supports our conclusion2 that polar vortex stretching and wave reflection did not play a measurable role in the cold air outbreak.
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Source:Nature Communications, 14(1)
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DOI:
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ISSN:2041-1723
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Rights Information:CC BY
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Compliance:Library
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