A solar pattern in the longest temperature series from three stations in Europe

作者：Le Mouel Jean Louis; Kossobokov Vladimir; Courtillot Vincent^*

来源：Journal of Atmospheric and Solar-Terrestrial Physics, 2010, 72(1): 62-76.

DOI：10.1016/j.jastp.2009.10.009

• Temperature series
• Solar activity
• Europe
• Solar-terrestrial relationships

We analyze the longest temperature series from Prague, Bologna and Uccle. We partition daily minimum and maximum temperatures and their differences in two subsets as a function of high vs low solar activity, using the Superimposed epochs method. Differences display patterns with significant amplitudes and time constants similar to 3 months. These arc recognized in all stations and are stable against a change in the analyzed period. Amplitude of variations is similar to 1 degrees C. Differences between average annual values corresponding to high vs low activity periods are also similar to 1 degrees C. Solar activity may account for these long-term temperature variations These variations also present local characteristics, which may render identification of a global correlation delicate. We discuss possible physical mechanisms by which solar variation could force climate changes (e.g. through solar activity itself, the EUV part of the solar flux, cosmic rays, the downward ionosphere-earth current density. etc.).

• 出版日期2010-1