Atmospheric C-14 and century-scale solar oscillations

Details Atmospheric C-14 and century-scale solar oscillations Atmospheric C-14 and century-scale solar oscillations

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989natur.338..405s&link_type=abstract

Nature (ISSN 0028-0836), vol. 338, March 30, 1989, p. 405-408. Research supported by NSF.

Computer Science

83

Abundance, Atmospheric Composition, Carbon 14, Solar Oscillations, Solar Terrestrial Interactions, Cosmic Rays, Dipole Moments, Long Term Effects, Radioactive Age Determination

Scientific paper

Maximum-entropy spectral analysis of a 9600-yr high-precision C-14 chronology is used to show that changes occur in the sun's convective zone with a fundamental oscillatory mode of about 2.4 x 10 to the -3rd/yr (420-year period). Several harmonics are identified. Previous searches for cyclicity have yielded periods near 140 and 200 yr. The implications of a longer and more precise C-14 record are discussed.

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