Support for the astronomical theory of climatic change
(1977) Nature : international weekly journal of science — Vol. 269, n° 5623, p. 44-45 (1977)
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- The quasi-periods of climatic variation found by Hays et al. (Science, vol.194, p.1121 (1976)) from deep-sea cores are examined. It is shown that these periods are very close to those predicted from the variations of the various `Milankovitch' parameters: the 24000 yr and 19500 yr periods from the core samples are not significantly different from the periods associated with the largest amplitude terms in the series expansion of the precessional parameters; the periods around 42000 yr are identical with the most important term in the expansion of the obliquity; and the peaks in the range of 106000 yr may be either a contribution from the eccentricity or a beat effect of precessional periods. Other periods that could be found in the geological record are identified.
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Berger, A. (1977). Support for the astronomical theory of climatic change. Nature : international weekly journal of science, 269(5623), 44-45. https://hdl.handle.net/2078.5/72487 (Original work published 1977)