Interpretation of Recent Southern Hemisphere Climate Change

  title={Interpretation of Recent Southern Hemisphere Climate Change},
  author={David W. J. Thompson and Susan Solomon},
  pages={895 - 899}
Climate variability in the high-latitude Southern Hemisphere (SH) is dominated by the SH annular mode, a large-scale pattern of variability characterized by fluctuations in the strength of the circumpolar vortex. We present evidence that recent trends in the SH tropospheric circulation can be interpreted as a bias toward the high-index polarity of this pattern, with stronger westerly flow encircling the polar cap. It is argued that the largest and most significant tropospheric trends can be… Expand

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