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Global wood anatomical perspective on the onset of the Late Antique Little Ice Age (LALIA) in the mid-6th century CE
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SYSNO ASEP 0568198 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Global wood anatomical perspective on the onset of the Late Antique Little Ice Age (LALIA) in the mid-6th century CE Author(s) Büntgen, Ulf (UEK-B) RID, ORCID, SAI
Crivellaro, A. (GB)
Arseneault, D. (CA)
Baillie, M. (IE)
Barclay, D. (US)
Bernabei, M. (IT)
Bontadi, J. (IT)
Boswijk, G. (NZ)
Brown, D. (IE)
Christie, D. A. (CL)
Churakova (Sidorova), O. (RU)
Cook, E.R. (US)
D'Arrigo, R. (US)
Davi, N. (US)
Esper, Jan (UEK-B) SAI, ORCID, RID
Fonti, P. (CH)
Greaves, C. (GB)
Hantemirov, R. (RU)
Hughes, Malcolm K. (US)
Kirdyanov, A. V. (RU)
Krusic, P. J. (SE)
Le Quesne, C. (CL)
Ljungqvist, F. C. (SE)
McCormick, M. (US)
Myglan, V. S. (RU)
Nicolussi, K. (AT)
Oppenheimer, C. (GB)
Palmer, J. (GB)
Qin, C. (CN)
Reinig, F. (DE)
Trnka, Miroslav (UEK-B) RID, ORCID, SAINumber of authors 39 Source Title Science Bulletin - ISSN 2095-9273
Roč. 67, č. 22 (2022), s. 2336-2344Number of pages 9 s. Language eng - English Country CN - China Keywords Blue Rings ; Climate extremes ; Dendrochronology ; Late Antiquity ; Tree rings ; Volcanic eruptions Subject RIV EH - Ecology, Behaviour OECD category Climatic research R&D Projects EF16_019/0000797 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UEK-B - RVO:86652079 UT WOS 000910089600014 EID SCOPUS 85141992308 DOI 10.1016/j.scib.2022.10.019 Annotation Linked to major volcanic eruptions around 536 and 540 CE, the onset of the Late Antique Little Ice Age has been described as the coldest period of the past two millennia. The exact timing and spatial extent of this exceptional cold phase are, however, still under debate because of the limited resolution and geographical distribution of the available proxy archives. Here, we use 106 wood anatomical thin sections from 23 forest sites and 20 tree species in both hemispheres to search for cell-level fingerprints of ephemeral summer cooling between 530 and 550 CE. After cross-dating and double-staining, we identified 89 Blue Rings (lack of cell wall lignification), nine Frost Rings (cell deformation and collapse), and 93 Light Rings (reduced cell wall thickening) in the Northern Hemisphere. Our network reveals evidence for the strongest temperature depression between mid-July and early-August 536 CE across North America and Eurasia, whereas more localised cold spells occurred in the summers of 532, 540-43, and 548 CE. The lack of anatomical signatures in the austral trees suggests limited incursion of stratospheric volcanic aerosol into the Southern Hemisphere extra-tropics, that any forcing was mitigated by atmosphere-ocean dynamical responses and/or concentrated outside the growing season, or a combination of factors. Our findings demonstrate the advantage of wood anatomical investigations over traditional dendrochronological measurements, provide a benchmark for Earth system models, support cross-disciplinary studies into the entanglements of climate and history, and question the relevance of global climate averages. (c) 2022 Science China Press. Published by Elsevier B.V. and Science China Press. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2023 Electronic address https://www.sciencedirect.com/science/article/pii/S2095927322004790?via%3Dihub
Number of the records: 1