An analysis is carried out of the intra-centennial variations of the length of day, the global mean sea surface temperature, and the global mean sea level. It is shown that variations of these oceanic parameters and variations of the length of day are consistent with each other simultaneously on the inter-decadal (20–30-year) and multi-decadal (50–80 year) timescales. Estimates of the correlation and delay of intra-centennial variations of the oceanic parameters with respect to variations of the length of day are obtained.
On the base of 300-year data of the surface air temperature in Central England, with the help of cross-wavelet technique, we study the correlative relations of Central England temperature (CET) to the sunspot number and the index of the North Atlantic Oscillation (NAO). The cross-wavelet characteristics are the local correlation and local coherency. The local correlation of CET with the NAO index is positive and experiences a multidecadal modulation with a period of about 60 years. The local coherency and the local correlation between CET and the sunspot number on the frequency scale of the 11-year solar cycle experience modulation with a period of about 50 years. This modulation is likely associated with multidecadal variations of solar activity.
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