Variation in Atmospheric Carbon-14 Activity Relative to a Sunspot-Auroral Solar Index
- 5 May 1967
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 156 (3775), 640-642
- https://doi.org/10.1126/science.156.3775.640
Abstract
Radiocarbon activity was negatively correlated (P≤.01) with a sunspot-auroral index during 25 designated solar activity periods from 129 B.C. to A.D. 1964. Change in carbon-14 activity during these periods was inverse to change in solar activity in 22 of 24 instances (P≤.001). Contamination from carbon-14 formed during previous solar cycles mnay lessen the value of carbon-14 as a climate or solar index.This publication has 17 references indexed in Scilit:
- Fluctuation of atmospheric C14during the last six millenniaJournal of Geophysical Research, 1966
- Secular variations of the cosmic-ray-produced carbon 14 in the atmosphere and their interpretationsJournal of Geophysical Research, 1965
- Carbon-14 Content of 18th- and 19th-Century Wood: Variations Correlated with Sunspot ActivityScience, 1965
- Forest Growth and Glacier Chronology in North-West North America in Relation to Solar ActivityNature, 1965
- FOREST GROWTH AND GLACIAL CHRONOLOGY IN EASTERN BRITISH COLUMBIA, AND THEIR RELATION TO RECENT CLIMATIC TRENDSCanadian Journal of Botany, 1963
- Variations in radiocarbon concentration and sunspot activityJournal of Geophysical Research, 1961
- Carbon-14 Measurements of Known Age SamplesNature, 1960
- Radiocarbon Measurements on Samples of Known AgeNature, 1959
- Heidelberg Natural Radiocarbon Measurements IScience, 1957
- The sunspot cycle, 649 B.C. to A.D. 2000Journal of Geophysical Research, 1955