Other
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010sunge...5...63k&link_type=abstract
Sun and Geosphere, vol.5, no.2, p.63-73.
Other
Scientific paper
This paper presents results of our study concerning links between changes of solar activity (sunspot numbers W), rotation rate (ω) and global temperature of Earth (Tgl) to understand their connection on different time scales in the past, present and close future. We apply MGM method of spectral analysis elaborated by us that can quantitatively describe both trends and non-stationary variations to evaluate their input in data. Trend in north hemisphere temperature shows rise since Maunder's minimum with present rate ~0.50C/100yr correlated with trend in W. Variations of high-amplitude 200-yr cycles in W and in Tgl show decrease of the parameters at present. The result also is a proof of the 200-yr solar contribution to temperature rise during the last century. We suggest a possible explanation of observed unexplained rise in temperature for the interval 1905-1940 and its subsequent decrease for 1940-1976 with rate ~0.750C/100yr by variation in ω with period of 72 yr. We present arguments of solar-lunar origin of the power cycle. Based on our results we suggest a possible mechanism for the 22-yr variation in Tgl to be explained. The mechanism successfully reproduces the variations in W, Tgl and ω. We discuss other possible physical mechanisms of solar variability that may influence our climatic changes.
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