Author Correction: Tree rings reveal globally coherent signature of cosmogenic radiocarbon events in 774 and 993 CE

Büntgen, Ulf; Wacker, Lukas; Galván, J. Diego; Arnold, Stephanie; Arseneault, Dominique; Baillie, M. G. L.; Beer, Jürg; Bernabei, Mauro; Bleicher, Niels; Boswijk, Gretel; Bräuning, Achim; Carrer, Marco; Ljungqvist, Fredrik Charpentier; Cherubini, Paolo; Christl, Marcus; Christie, Duncan A.; Clark, Peter W.; Cook, Edward R.; D’Arrigo, Rosanne; Davi, Nicole; Eggertsson, Ólafur; Esper, Jan; Fowler, Anthony; Gedalof, Ze’ev; Gennaretti, Fabio; Grießinger, Jussi; Grissino‐Mayer, Henri D.; Grudd, Håkan; Gunnarson, Björn E.; Hantemirov, Rashit; Herzig, Franz; Hessl, Amy; Heußner, Karl Uwe; Jull, A. J. T.; Kukarskih, Vladimir V.; Kirdyanov, Alexander V.; Kolář, Tomáš; Krusic, Paul J.; Kyncl, Tomáš; Lara, Antonio; LeQuesne, Carlos; Linderholm, Hans W.; Loader, Neil J.; Luckman, Brian H.; Miyake, Fusa; Myglan, Vladimir S.; Nicolussi, Kurt; Oppenheimer, Clive; Palmer, Jonathan; Panyushkina, Irina P.; Pederson, Neil; Rybníček, Michal; Schweingruber, Fritz Hans; Seim, Andrea; Sigl, Michael; Churakova, Olga V.; Speer, James H.; Synal, H.-A.; Tegel, Willy; Treydte, Kerstin; Villalba, Ricardo; Wiles, Greg; Wilson, Rob; Winship, Lawrence J.; Wunder, Jan; Yang, Bao; Young, Giles H.F.

doi:10.1038/s41467-018-07636-6

Cited by 10 publications

(17 citation statements)

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“…It is confirmed by the presence of volcanic ash in the corresponding layers of ice cores [29,30,33]. The historical chronicles of John Bishop of Ephesus and the Byzantine writer Procopius of Caesarea also indicate that in 535-536, the Sun darkened and emitted light like the Moon for 18 months [33]. In addition, on the first of September 536, a ring-shaped solar eclipse took place, the coneextension of the lunar shadow of which crossed the territory of Greenland, Iceland, Great Britain, Sardinia, northeast Africa and south-west of the Arabian Peninsula.…”

Section: Discussionmentioning

confidence: 88%

“…The peak of cooling occurred in the middle of the "dark" sixth century, when volcanic activity intensified in 536, 540 and 547. It is confirmed by the presence of volcanic ash in the corresponding layers of ice cores [29,30,33]. The historical chronicles of John Bishop of Ephesus and the Byzantine writer Procopius of Caesarea also indicate that in 535-536, the Sun darkened and emitted light like the Moon for 18 months [33].…”

Section: Discussionmentioning

confidence: 94%

“…Solar activity [48,49,50], as well as planetary factors and processes -volcanic activity [29,30,33], current intensity, heat transfer with the World Ocean -can significantly strengthen or weaken the influence of gravitational forces due to the configuration of orbits in outer space.…”

Section: Discussionmentioning

confidence: 99%

“…The most used research methods in the work were the study and synthesis of materials on climate and its restoration in the historical era [24][25][26][27][28][29][30][31][32][33][34][35][36], alternating years with solar eclipses from 3000 BC up to 3000 AD [22,37], as well as logical, graphical analysis, and synthesis of the obtained data. Open access to the materials of the site is of great importance for the appearance of the results [22].…”

Section: Methodsmentioning

confidence: 99%

“…By the way, all the time intervals between years with polar eclipses calculated in Table 1 (8,18,22,29,33,47, 65 and more) are composed of simple intervals of the lunar-solar calendar -3, 4, 7, 11 years. It is interesting that at the end of the period of the Roman optimum, the interval between years with 4-5 polar eclipses reached 65 (289-354) and 95 (372-470) years (Table 1).…”

Section: Number Of Years With Four Eclipsesmentioning

confidence: 99%

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Modern warming, medieval and ancient optimums as the result of orbital changes in the Earth-Moon-Sun system

Litvinenko

2020

E3S Web Conf.

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The root cause of modern climate warming is the influence of gravitational forces on the geospheres of our planet, determined by the orbital configuration of the Earth-Moon-Sun system. The annual changes in the position of the total vector of gravitational forces in space visually reflects the movement of the shadow cone of solar eclipses around the globe. The aim and novelty of the study is to identify the relationship between the number of years with four to five polar eclipses (in periods of pessimums, their number reaches 15-17 years, and in periods of optimums – 2-7 years in a century) and glaciation processes, such as the Fernau fluctuation, Late Antique Little Ice Age, or processes of warming and degradation of glaciers in the Roman and Medieval optimums. The research methods were study, generalization of materials, data synthesis, logical and graphical analysis. The anthropogenic causes of modern warming, which will last until the middle of the 22nd century, are secondary. In the second half of the 22nd century, and throughout the entire 24th century, the advance of the alpine glaciers will be associated with the conditions of the climatic pessimum. Solar activity, planetary factors and processes - volcanic activity, current intensity, heat transfer with the World Ocean – can noticeably strengthen or weaken both the manifestation of optimums and pessimums. The results of the study, taking into account other factors, can be used in the retroanalysis of the periods of glaciation in centuries before the Common Era and the prediction of them in the future.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Number Of Years With Four Eclipsesmentioning

confidence: 99%

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Modern warming, medieval and ancient optimums as the result of orbital changes in the Earth-Moon-Sun system

Litvinenko

2020

E3S Web Conf.

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Annual Variation in Atmospheric ¹⁴C Between 1700 BC and 1480 BC

et al. 2020

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In 2018 Pearson et al. published a new sequence of annual radiocarbon (14C) data derived from oak (Quercus sp.) trees from Northern Ireland and bristlecone pine (Pinus longaeva) from North America across the period 1700–1500 BC. The study indicated that the more highly resolved shape of an annually based calibration dataset could improve the accuracy of 14C calibration during this period. This finding had implications for the controversial dating of the eruption of Thera in the Eastern Mediterranean. To test for interlaboratory variation and improve the robustness of the annual dataset for calibration purposes, we have generated a replicate sequence from the same Irish oaks at ETH Zürich. These data are compatible with the Irish oak 14C dataset previously produced at the University of Arizona and are used (along with additional data) to examine inter-tree and interlaboratory variation in multiyear annual 14C time-series. The results raise questions about regional 14C offsets at different scales and demonstrate the potential of annually resolved 14C for refining subdecadal and larger scale features for calibration, solar reconstruction, and multiproxy synchronization.

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Illuminating Intcal During the Younger Dryas

et al. 2020

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As the worldwide standard for radiocarbon ( 14 C) dating over the past ca. 50,000 years, the International Calibration Curve (IntCal) is continuously improving towards higher resolution and replication. Tree-ring-based 14 C measurements provide absolute dating throughout most of the Holocene, although high-precision data are limited for the Younger Dryas interval and farther back in time. Here, we describe the dendrochronological characteristics of 1448 new 14 C dates, between~11,950 and 13,160 cal BP, from 13 pines that were growing in Switzerland. Significantly enhancing the ongoing IntCal update (IntCal20), this Late Glacial (LG) compilation contains more annually precise 14 C dates than any other contribution during any other period of time. Thus, our results now provide unique geochronological dating into the Younger Dryas, a pivotal period of climate and environmental change at the transition from LG into Early Holocene conditions.

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Author Correction: Tree rings reveal globally coherent signature of cosmogenic radiocarbon events in 774 and 993 CE

Cited by 10 publications

References 0 publications

Modern warming, medieval and ancient optimums as the result of orbital changes in the Earth-Moon-Sun system

Modern warming, medieval and ancient optimums as the result of orbital changes in the Earth-Moon-Sun system

Annual Variation in Atmospheric ¹⁴C Between 1700 BC and 1480 BC

Illuminating Intcal During the Younger Dryas

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Author Correction: Tree rings reveal globally coherent signature of cosmogenic radiocarbon events in 774 and 993 CE

Cited by 10 publications

References 0 publications

Modern warming, medieval and ancient optimums as the result of orbital changes in the Earth-Moon-Sun system

Modern warming, medieval and ancient optimums as the result of orbital changes in the Earth-Moon-Sun system

Annual Variation in Atmospheric 14C Between 1700 BC and 1480 BC

Illuminating Intcal During the Younger Dryas

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Product

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Annual Variation in Atmospheric ¹⁴C Between 1700 BC and 1480 BC