The Planetary Theory of Solar Activity Variability: A Review
First published: 2022
Brief summary
Review of astronomically-derived solar activity cycles (9.1, 10.5, 20, 60, 115, 981-year) linked to planetary orbital configurations, used in a semi-empirical climate model.
Article
The Planetary Theory of Solar Activity Variability: A Review is a preprint / review article published by arXiv (Scafetta) in 2022. It reviews astronomically-derived solar activity cycles (9.1, 10.5, 20, 60, 115, 981-year) linked to planetary orbital configurations, used in a semi-empirical climate model.
Multiple periods stated: 9.1, 10.46, 10.5, 20, 60, 115, and 981 years. It also considers ties solar/climate cycles to planetary orbital resonances. This gives the cycle claim a specific numerical and evidential setting rather than presenting periodicity only as a visual impression.
The article reports the following result: The planetary theory links solar activity cycles to orbital invariant inequalities among Venus, Earth, Jupiter and Saturn, and underlies a semi-empirical climate model incorporating cycles from 9.1 to 981 years. The interpretation is strongest when it survives proxy uncertainty, model choice, dating error and comparison with established solar, orbital and ocean-atmosphere forcing.
For cycles researchers, the article brings together planetary theory, solar activity variability, orbital resonances, climate cycles. It is relevant to climate-cycle research because observed periodicities may arise from orbital forcing, solar variability, ocean-atmosphere dynamics or internal stochastic behaviour.
Because it is a preprint / review article, the work should be read alongside later peer-reviewed publications and independent replications. It remains useful because the proposed cycle, dataset and analytical approach are stated clearly enough to be scrutinised.
Source details and credits
- Source / publisher: arXiv (Scafetta)
- Source type: Preprint / review article
- URL type: PDF
- Credits: arXiv (Scafetta)
- URL: https://arxiv.org/pdf/2208.09293