Il Nuovo Cimento C

, Volume 10, Issue 5, pp 593–599 | Cite as

On a possible seasonal tidal influence of lunar cycles on precipitation data

  • G. Cevolani
  • G. Bortolotti
Note Brevi


Time variations in daily precipitation data, collected at many stations in the Alps and the Po valley and grouped according to the age of lunar cycles (synodical, nodical and anomalistic), possibly reveal a tidal action. This effect differs in «cold» and «warm» months, indicating that vertical motions which can be connected with tidal activity have a seasonally differentiated behaviour. Time variations of a «semi-monthly» spectral component throughout the observing period exhibit precipitation amplitude maxima in correspondence to the years (i.e. 1976) of major climatological interest.

PACS. 92.60



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Copyright information

© Società Italiana di Fisica 1987

Authors and Affiliations

  • G. Cevolani
    • 1
  • G. Bortolotti
    • 1
  1. 1.FISBAT/CNRBolognaItalia

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