Articles | Volume 3, issue 4
https://doi.org/10.5194/wcd-3-1399-2022
https://doi.org/10.5194/wcd-3-1399-2022
Research article
 | 
01 Dec 2022
Research article |  | 01 Dec 2022

Signatures of Eurasian heat waves in global Rossby wave spectra

Iana Strigunova, Richard Blender, Frank Lunkeit, and Nedjeljka Žagar

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Short summary
We show that the Eurasian heat waves (HWs) have signatures in the global circulation. We present changes in the probability density functions (PDFs) of energy anomalies in the zonal-mean state and in the Rossby waves at different zonal scales in relation to the changes in intramonthly variability. The skewness of the PDF of planetary-scale Rossby waves is shown to increase during HWs, while their intramonthly variability is reduced, a process referred to as blocking.