1800-1950 年间树木年轮中放射性碳的变化与 11 年太阳周期的关系

IF 2 3区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS Radiocarbon Pub Date : 2024-04-30 DOI:10.1017/rdc.2024.37

Pavel P Povinec, Ivan Kontuľ, Ivo Svetlik

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引用次数: 0

摘要

本文回顾了在西北太平洋（美国西北部）（Stuiver 和 Braziunas，1993 年）和欧洲（英格兰，Brehm 等，2021 年；斯洛伐克，Povinec，1977 年，1987 年）年轮中观测到的放射性碳变化研究结果，目的是更好地理解 11 年放射性碳循环以及太阳质子事件对大气和生物圈中 14C 含量的可能影响。1798-1944 年期间树环中的平均 Δ14C 振幅为 1.3 ± 0.3‰，平均周期为 11 ± 1 年，太阳黑子数与Δ14C 记录之间的平均时间偏移为 3 ± 1 年。来自西北太平洋和英格兰的Δ14C数据集确定了一个新的太阳活动最低点（格莱斯堡最低点，1878-1933年），显示Δ14C过量7‰，与道尔顿最低点（1797-1823年）相当。在 1800-1950 年期间，没有发现与太阳质子事件有关的 Δ14C 水平的重大变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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RADIOCARBON VARIATIONS IN ANNUAL TREE RINGS WITH 11-YEAR SOLAR CYCLES DURING 1800–1950

The results of radiocarbon variation studies observed in annual tree rings from the NW Pacific (USA Northwest) (Stuiver and Braziunas 1993) and Europe (England, Brehm et al. 2021; Slovakia, Povinec 1977, 1987) are reviewed with the aim of better understanding the 11-year radiocarbon cycle and possible impacts of solar proton events on 14C levels in the atmosphere and biosphere. The average Δ14C amplitude in tree rings for the period of 1798–1944 was 1.3 ± 0.3‰, the average periodicity was 11 ± 1 years, and the average time shift between the sunspot numbers and Δ14C records was 3 ± 1 years. A new solar activity minimum (Gleissberg minimum, 1878–1933) has been identified in the Δ14C data sets from the NW Pacific and England, showing Δ14C excess of 7‰, comparable to the Dalton minimum (1797–1823). No significant changes in Δ14C levels were identified that could be associated with solar proton events during 1800–1950.

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来源期刊

Radiocarbon 地学-地球化学与地球物理

CiteScore

16.20

自引率

6.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Radiocarbon serves as the leading international journal for technical and interpretive articles, date lists, and advancements in 14C and other radioisotopes relevant to archaeological, geophysical, oceanographic, and related dating methods. Established in 1959, it has published numerous seminal works and hosts the triennial International Radiocarbon Conference proceedings. The journal also features occasional special issues. Submissions encompass regular articles such as research reports, technical descriptions, and date lists, along with comments, letters to the editor, book reviews, and laboratory lists.