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Some new relationships between temperature variations and sunspot cycles—1. Long-period variations

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  • Njau, E.c

Abstract

We illustratively report clear relationships between global and regional temperature variations on one hand and variations in the peaks of 11 year sunspot cycles on the other from the year 1730 onwards. We show that a major change in the variation pattern (or state) of global temperature takes place during each rising and falling phase of the peaks of 11 year sunspot cycles. Also while a previous publication by the author did establish that both global temperature and peaks of 11 year sunspot cycles vary at a similar main modulating frequency but in anti-phase mode, we show here that temperature variations at individual regions of the northern and southern hemispheres vary at frequencies fo, (2/3)fo, 1 (1/3)fo and 2fo such that fo is the main modulating frequency characterising the peaks of 11 year sunspot cycles. These findings indicate that predictions of future global and regional temperature changes may be made on the basis of corresponding solar or sunspot variations.

Suggested Citation

  • Njau, E.c, 1999. "Some new relationships between temperature variations and sunspot cycles—1. Long-period variations," Renewable Energy, Elsevier, vol. 18(1), pages 25-33.
    • Handle: RePEc:eee:renene:v:18:y:1999:i:1:p:25-33
    DOI: 10.1016/S0960-1481(98)00777-0
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    References listed on IDEAS

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    1. Butera, F. & Cannistraro, G. & Rizzo, G. & Yaghoubi, M.A., 1991. "Simplified thermal analysis of naturally ventilated dwellings," Renewable Energy, Elsevier, vol. 1(5), pages 749-756.
    2. Njau, Ernest C., 1997. "Existence and possible causes of some large-scale changes in temperature patterns," Renewable Energy, Elsevier, vol. 11(4), pages 401-408.
    3. Njau, Ernest C., 1998. "Amplitude-modulating periodicities in global and regional heat/temperature variations," Renewable Energy, Elsevier, vol. 13(3), pages 295-303.
    4. Njau, Ernest C., 1996. "Generalised derivation of the Angstrom and Angstrom-Prescott equations," Renewable Energy, Elsevier, vol. 7(1), pages 105-108.
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    1. Njau, Ernest C, 2000. "New evidence for imminent change in global temperature patterns," Renewable Energy, Elsevier, vol. 20(2), pages 129-134.
    2. Njau, Ernest C., 2000. "Some new relationships between temperature variations and sunspot cycles—2. Short-period variations," Renewable Energy, Elsevier, vol. 19(4), pages 565-577.

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