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September 5, 2025Open Access

A 45-Year Climatological Study of Arctic Stratospheric Polar Vortex Dynamics and Morphology using ERA5 Data (1979-2023)

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Authors

AKAnish KumarKKKhalil KaramiCJChristoph Jacobi

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Overview

Analysis reveals the role of climatic variability on arctic stratospheric polar vortex dynamics, suggesting major implications for future SSW events.

Key Points

  • The study found significant variations in the arctic stratospheric polar vortex, emphasizing changes in its strength and morphology over 45 years.
  • Statistically significant data indicates record-low ozone levels coincide with exceptionally strong vortex events during recent winters.
  • Utilizing ERA5 data, the study explores climatic modes like the quasi-biennial oscillation, highlighting their influence on polar vortex dynamics.
  • A noticeable trend of earlier vortex formation in the upper stratosphere suggests that future extreme SSWs and ESVs may occur in the same winter.

Cite This Study

Kumar et al. (2025) studied this question.

synapsesocial.com/papers/68bb3efd2b87ece8dc957dc6https://doi.org/10.21203/rs.3.rs-7472791/v1
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