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Influence on the Middle Atmosphere of the 27-Day and 11-Year Solar Cycles: Radiative and/or Dynamical Forcing?

Abstract : Results from Rayleigh lidar during the last solar cycle indicate a highly significant correlation with the solar flux both on the scale of the 11-year and 27-day cycles. The height profile of the response to solar variability for both cycles presents a succession of positive and negative correlations which are difficult to explain on the basis of a purely radiative and photochemical forcing. The similarity between the response as a function of height seen from lidar data and as a function of latitude seen from radiosondes and satellites data for both cycles provides a strong support to the hypothesis of dynamical forcing proposed by several authors. It leads to the conclusion that such an effect can only be simulated by three dimensional fully coupled models.
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Marie-Lise Chanin, Philippe Keckhut. Influence on the Middle Atmosphere of the 27-Day and 11-Year Solar Cycles: Radiative and/or Dynamical Forcing?. Journal of Geomagnetism and Geoelectricity, Society of Geomagnetism and Earth, Planetary and Space Sciences 1991, 43 (Supplement 2), pp.647-655. ⟨10.5636/jgg.43.Supplement2_647⟩. ⟨insu-03555772⟩

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