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Tree rings reveal g...
Tree rings reveal globally coherent signature of cosmogenic radiocarbon events in 774 and 993 CE
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Buntgen, U. (author)
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- Linderholm, Hans W., 1968 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences
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Galvan, J. D. (author)
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Arnold, S. (author)
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Arseneault, D. (author)
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Baillie, M. (author)
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Beer, J. (author)
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Bernabei, M. (author)
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Bleicher, N. (author)
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Boswijk, G. (author)
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Brauning, A. (author)
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Carrer, M. (author)
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- Charpentier Ljungqvist, Fredrik (author)
- Stockholms universitet,Historiska institutionen,University of Cambridge, UK
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Cherubini, P. (author)
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Christl, M. (author)
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Christie, D. A. (author)
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Clark, P. W. (author)
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Cook, E. R. (author)
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D'Arrigo, R. (author)
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Davi, N. (author)
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Eggertsson, O. (author)
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Esper, J. (author)
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Fowler, A. M. (author)
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Gedalof, Z. (author)
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Gennaretti, F. (author)
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Griessinger, J. (author)
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Grissino-Mayer, H. (author)
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Grudd, H. (author)
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- Gunnarson, Björn E. (author)
- Stockholms universitet,Institutionen för naturgeografi
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Hantemirov, R. (author)
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Herzig, F. (author)
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Hessl, A. (author)
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Heussner, K. U. (author)
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Jull, A. J. T. (author)
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Kukarskih, V. (author)
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Kirdyanov, A. (author)
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Kolar, T. (author)
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- Krusic, Paul J. (author)
- Stockholms universitet,Institutionen för naturgeografi,University of Cambridge, UK; Navarino Environmental Observatory, Greece
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Kyncl, T. (author)
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Lara, A. (author)
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LeQuesne, C. (author)
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- Linderholm, Hans W., 1968 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences
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Loader, N. J. (author)
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Luckman, B. (author)
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Miyake, F. (author)
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Myglan, V. S. (author)
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Nicolussi, K. (author)
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Oppenheimer, C. (author)
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Palmer, J. (author)
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Panyushkina, I. (author)
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Pederson, N. (author)
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Rybnicek, M. (author)
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Schweingruber, F. H. (author)
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Seim, A. (author)
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Sigl, M. (author)
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Sidorova, O. (author)
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Speer, J. H. (author)
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Synal, H. A. (author)
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Tegel, W. (author)
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Treydte, K. (author)
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Villalba, R. (author)
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Wiles, G. (author)
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Wilson, R. (author)
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Winship, L. J. (author)
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Wunder, J. (author)
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Yang, B. (author)
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Young, G. H. F. (author)
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(creator_code:org_t)
- 2018-09-06
- 2018
- English.
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In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 9
- Related links:
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https://www.nature.c...
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https://doi.org/10.1...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
Close
- Though tree-ring chronologies are annually resolved, their dating has never been independently validated at the global scale. Moreover, it is unknown if atmospheric radiocarbon enrichment events of cosmogenic origin leave spatiotemporally consistent fingerprints. Here we measure the 14C content in 484 individual tree rings formed in the periods 770–780 and 990–1000 CE. Distinct 14C excursions starting in the boreal summer of 774 and the boreal spring of 993 ensure the precise dating of 44 tree-ring records from five continents. We also identify a meridional decline of 11-year mean atmospheric radiocarbon concentrations across both hemispheres. Corroborated by historical eye-witness accounts of red auroras, our results suggest a global exposure to strong solar proton radiation. To improve understanding of the return frequency and intensity of past cosmic events, which is particularly important for assessing the potential threat of space weather on our society, further annually resolved 14C measurements are needed.
Subject headings
- HUMANIORA -- Historia och arkeologi -- Arkeologi (hsv//swe)
- HUMANITIES -- History and Archaeology -- Archaeology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
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Buntgen, U.
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Linderholm, Hans ...
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Galvan, J. D.
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Arnold, S.
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Arseneault, D.
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Baillie, M.
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show more...
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Beer, J.
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Bernabei, M.
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Bleicher, N.
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Boswijk, G.
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Brauning, A.
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Carrer, M.
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Charpentier Ljun ...
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Cherubini, P.
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Christl, M.
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Christie, D. A.
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Clark, P. W.
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Cook, E. R.
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D'Arrigo, R.
-
Davi, N.
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Eggertsson, O.
-
Esper, J.
-
Fowler, A. M.
-
Gedalof, Z.
-
Gennaretti, F.
-
Griessinger, J.
-
Grissino-Mayer, ...
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Grudd, H.
-
Gunnarson, Björn ...
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Hantemirov, R.
-
Herzig, F.
-
Hessl, A.
-
Heussner, K. U.
-
Jull, A. J. T.
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Kukarskih, V.
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Kirdyanov, A.
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Kolar, T.
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Krusic, Paul J.
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Kyncl, T.
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Lara, A.
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LeQuesne, C.
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Loader, N. J.
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Luckman, B.
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Miyake, F.
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Myglan, V. S.
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Nicolussi, K.
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Oppenheimer, C.
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Palmer, J.
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Panyushkina, I.
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Pederson, N.
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Rybnicek, M.
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Schweingruber, F ...
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Seim, A.
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Sigl, M.
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Sidorova, O.
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Speer, J. H.
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Synal, H. A.
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Tegel, W.
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Treydte, K.
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Villalba, R.
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Wiles, G.
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Wilson, R.
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Winship, L. J.
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Wunder, J.
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Yang, B.
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Young, G. H. F.
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show less...
- About the subject
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- HUMANITIES
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HUMANITIES
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and History and Arch ...
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and Archaeology
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Geology
- Articles in the publication
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Nature Communica ...
- By the university
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University of Gothenburg
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Stockholm University