The Radiocarbon Record in Tree Rings of the Last 8000 Years

Sueß, Hans E.

doi:10.1017/s0033822200009462

Cited by 229 publications

(124 citation statements)

References 10 publications

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“…A cycle with a period of 205-210 years, called the de Vries or Suess cycle in different sources, is a prominent feature, observed in various cosmogenic data (e.g., Suess 1980;Sonett and Finney 1990;Zhentao 1990;Steinhilber et al 2012). It mostly manifests itself as the recurrence period of Grand minima within clusters ).…”

Section: -Years Suess/de Vries Cyclementioning

confidence: 99%

A history of solar activity over millennia

Usoskin

2017

Living Rev Sol Phys

391

241

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Presented here is a review of present knowledge of the long-term behavior of solar activity on a multi-millennial timescale, as reconstructed using the indirect proxy method. The concept of solar activity is discussed along with an overview of the special indices used to quantify different aspects of variable solar activity, with special emphasis upon sunspot number. Over long timescales, quantitative information about past solar activity can only be obtained using a method based upon indirect proxies, such as the cosmogenic isotopes 14 C and 10 Be in natural stratified archives (e.g., tree rings or ice cores). We give an historical overview of the development of the proxy-based method for past solar-activity reconstruction over millennia, as well as a description of the modern state. Special attention is paid to the verification and cross-calibration of reconstructions. It is argued that this method of cosmogenic isotopes makes a solid basis for studies of solar variability in the past on a long timescale (centuries to millennia) during the Holocene. A separate section is devoted to reconstructions of strong solar energetic-particle (SEP) events in the past, that suggest that the present-day average SEP flux is broadly consistent with estimates on longer timescales, and that the occurrence of extra-strong events is unlikely. Finally, the main features of the long-term evolution of solar magnetic activity, including the

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Section: -Years Suess/de Vries Cyclementioning

confidence: 99%

A history of solar activity over millennia

Usoskin

2017

Living Rev Sol Phys

391

241

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“…Most high-precision 14 C results (a relative precision of Δ 14 C of modern samples below 0.5%) for the development of 14 C calibration curves were obtained using these types of detectors (e.g. Suess 1980;Stuiver et al 1993;Stuiver and van der Plicht 1998; Kitagawa and van der Plicht 1998).…”

Section: P P Povinec Et Almentioning

confidence: 99%

Developments in Radiocarbon Technologies: From the Libby Counter to Compound-Specific AMS Analyses

2009

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“…The magnitude of this effect remains constant only under stable hydrologic and isotopic conditions. Changes in atmospheric 14C levels as has occurred dramatically since the 1950's because of nuclear testing and in more subdued form throughout the last 8000 years (Clark, 1975;Suess, 1980) can alter the magnitude of the hard-water effect. This alteration, which must be corrected for if valid 14C ages are to be calculated, occurs in several steps.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Atmospheric ¹⁴C Variations on the ¹⁴C Levels in the Jordan River System

1985

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ABSTRACT. '3C and 14C were measured in the upper Jordan River, in its tributaries which issue from the Mount Hermon aquifer, and in the local atmospheric CO2 to evaluate the degree to which changes in the atmospheric 14C levels influence the 14C levels in the aquifer and in the Jordan River. The exchange fraction of CO2 between the river and the atmosphere was calculated for fall 1983 with the two carbon isotopes and it is shown that the value obtained with 14C (0.364) is the more reliable. The ratio of 14C in the Jordan River to that in the atmosphere in 1972 is similar to that in 1983, 0.66 and 0.67, respectively. This implies an approximately constant ratio (0.44) between the 14C level in the Mount Hermon aquifer baseflow and the 4C level in the atmospheric CO2. This information can be combined with the known historical fluctuations in the 14C levels of the atmosphere to calculate the 14C fluctuations in the discharge of the Jordan River into Lake Kinneret, backwards in time.

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The Radiocarbon Record in Tree Rings of the Last 8000 Years

Cited by 229 publications

References 10 publications

A history of solar activity over millennia

A history of solar activity over millennia

Developments in Radiocarbon Technologies: From the Libby Counter to Compound-Specific AMS Analyses

The Effect of Atmospheric ¹⁴C Variations on the ¹⁴C Levels in the Jordan River System

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The Radiocarbon Record in Tree Rings of the Last 8000 Years

Cited by 229 publications

References 10 publications

A history of solar activity over millennia

A history of solar activity over millennia

Developments in Radiocarbon Technologies: From the Libby Counter to Compound-Specific AMS Analyses

The Effect of Atmospheric 14C Variations on the 14C Levels in the Jordan River System

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Product

Resources

About

The Effect of Atmospheric ¹⁴C Variations on the ¹⁴C Levels in the Jordan River System