The Relation between the Spring Reconstruction of Stratospheric Circulation and Tropospheric Processes in March–June

E. A. Bakulina, E. A. Dunaeva, and A. I. Ugryumov

Statistical relationship between the dates of the spring reconstruction of the stratospheric circulation (10 hPa) and frequency of Dzerdzeevskii elementary circulation mechanisms (ECM) over the Northern Hemisphere in March–June is studied. It is found that, after early (March) and late (May) stratospheric reconstruction, the frequency substantially differs, which can be useful for long-term forecasting.

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