New findings on the spectrum of solar activity and related climate changes

Njau, E. C. (2004) New findings on the spectrum of solar activity and related climate changes. Il nuovo cimento C, 27 (2). pp. 207-211. ISSN 1826-9885

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Abstract

It was established in a recent publication that annual sunspot numbers since 5400 BC are fully represented by a series of 11-year cycles (with constant peak-to-peak amplitude of 114 annual sunspot number) which is continuously amplitude-modulated by an oscillation with mean period of 2450 years, together with its (nonlinearly generated) harmonics. Here it is shown that the latter oscillation together with its harmonics take the form of two continuously alternating states. One of the states consists of a main oscillation at a period of 2050 years together with its third and higher harmonics. The other state consists of a main oscillation at a period of 2750 years together with its fifth and higher harmonics. Each state switches over to the other state after one complete cycle of its main oscillation. This new information, together with established Sun-Climate relationships, shows that there will expectedly be three little ice ages in close succession between the years 3440 AD and 4550 AD. The first of these three little ice ages has already been predicted in a recent publication through a different method.

Item Type: Article
Uncontrolled Keywords: Climatology ; Solar modulation and geophysical effects
Subjects: 500 Scienze naturali e Matematica > 550 Scienze della Terra > 551.6 Climatologia e tempo atmosferico (Classificare qui i lo studio dei Cambiamenti climatici)
Depositing User: Marina Spanti
Date Deposited: 14 Mar 2020 10:59
Last Modified: 14 Mar 2020 10:59
URI: http://eprints.bice.rm.cnr.it/id/eprint/15234

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