Computer Science
Scientific paper
Aug 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980natur.286..868s&link_type=abstract
Nature, vol. 286, Aug. 28, 1980, p. 868-871.
Computer Science
23
Climate Change, Climatology, Solar Activity Effects, Solar Oscillations, Solar Terrestrial Interactions, Carbon 14, Correlation Coefficients, Geomagnetism, Sunspots
Scientific paper
Climate records are compared with solar activity levels as deduced from atmospheric C-14 content indicated by the C-14 composition of tree rings in order to investigate the relationship between solar variability and weather. Changes in the atmospheric production rate of C-14 are calculated from a carbon reservoir model, with account taken of the influences of changes in the geomagnetic field as well as the solar modulation of the cosmic ray flux for the current millenium, and four major secular oscillations are noted, with periods of 120-140 and 240 years. Comparison of the solar variability record with climate records based on oxygen isotope measurements in ice cores, tree ring measurements and historic dating indicates no statistically significant relation between combined regional climate and C-14 time series, however solar-climate relationships 30 years out of phase are observed over a few smaller regions.
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