Effect of QBO and ENSO on the Solar Cycle Modulation of Winter North Atlantic Oscillation

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概要

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• The effect of the Quasi-Biennial Oscillation (QBO) and the El Nino Southern Oscillation (ENSO) on the 11-year solar cycle modulation of the winter-mean North Atlantic Oscillation (NAO) is examined through analysis of observational data from 1958 to 2000. It is found that the solar cycle modulation of the NAO is more strongly enhanced in the westerly phase of the 50-hPa QBO wind and the cold phase of ENSO, although separation of these effects is statistically difficult. On these phases, the signal of the winter-mean NAO extends more to the upper stratosphere and summer-AO reappears more strongly in high solar years, whereas the signal is weaker throughout in low solar years.

• 社団法人日本気象学会の論文
• 2007-12-25

著者

• Kuroda Yuhji

  Meteorological Res. Inst. Tsukuba Jpn

• Kuroda Yuhji

  Meteorological College

関連論文

• Preface(JMSJ Special Edition on the Arctic Oscillation Studies)
• On the Casimir Invariant of Hamiltonian Fluid Mechanics
• Effect of Solar Activity on the Polar-night Jet Oscillation in the Northern and Southern Hemisphere Winter
• Effect of QBO and ENSO on the Solar Cycle Modulation of Winter North Atlantic Oscillation

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