Stabilization of the Earth's obliquity by the Moon (original) (raw)
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- Published: 18 February 1993
Nature volume 361, pages 615–617 (1993)Cite this article
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Abstract
ACCORDING to Milankovitch theory1,2, the ice ages are related to variations of insolation in northern latitudes resulting from changes in the Earth's orbital and orientation parameters (precession, eccentricity and obliquity). Here we investigate the stability of the Earth's orientation for all possible values of the initial obliquity, by integrating the equations of precession of the Earth. We find a large chaotic zone which extends from 60° to 90° in obliquity. In its present state, the Earth avoids this chaotic zone and its obliquity is essentially stable, exhibiting only small variations of ± 1.3° around the mean value of 23.3°. But if the Moon were not present, the torque exerted on the Earth would be smaller, and the chaotic zone would then extend from nearly 0° up to about 85°. Thus, had the planet not acquired the Moon, large variations in obliquity resulting from its chaotic behaviour might have driven dramatic changes in climate. In this sense one might consider the Moon to act as a potential climate regulator for the Earth.
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References
- Imbrie, J. Icarus 50, 408–422 (1982).
Article ADS Google Scholar - Berger, A., Imbrie, J., Hays, J., Kukla, G. & Saltzman, B. (eds) Milankovitch and Climate (Reidel, Dordrecht, 1984).
Google Scholar - Ward, W. R. Icarus 50, 444–448 (1982).
Article ADS Google Scholar - Laskar, J. Icarus 88, 266–291 (1990).
Article ADS Google Scholar - Laskar, J., Froeschlé, C. & Celletti, A. Physica D 56, 253–269 (1992).
Article ADS MathSciNet Google Scholar - Laskar, J. Physica D (in the press).
- Laskar, J., Joutel, F. & Boudin, F. Astr. Astrophys. (in the press).
- Williams, G. E. J. Phys. Earth 38, 475–491 (1990).
Article Google Scholar - Kinoshita, H. Celest. Mech. 15, 277–326 (1977).
Article ADS Google Scholar - Laskar, J. Astr. Astrophys. 157, 59–70 (1986).
ADS Google Scholar - Laskar, J. Nature 338, 237–238 (1989).
Article ADS Google Scholar - Laskar, J. in Chaos, Resonance and Collective Dynamical Phenomena in the Solar System (ed. Ferraz-Mello, S.) 1–16 (Kluwer, Dordrecht, 1992).
Google Scholar - Laskar, J., Quinn, T. & Tremaine, S. Icarus 95, 148 (1992).
Article ADS Google Scholar - Sussman, G. & Wisdom, J. Science 257, 56–62 (1992).
Article ADS MathSciNet CAS Google Scholar
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Authors and Affiliations
- Astronomie et Systèmes Dynamiques, Bureau des Longitudes, 77 Avenue Denfert-Rochereau, F75014, Paris, France
J. Laskar, F. Joutel & P. Robutel
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- J. Laskar
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Laskar, J., Joutel, F. & Robutel, P. Stabilization of the Earth's obliquity by the Moon.Nature 361, 615–617 (1993). https://doi.org/10.1038/361615a0
- Received: 21 September 1992
- Accepted: 18 January 1993
- Issue Date: 18 February 1993
- DOI: https://doi.org/10.1038/361615a0
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