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The influence of decision-making in tree ring-based climate reconstructions
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SYSNO ASEP 0544714 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The influence of decision-making in tree ring-based climate reconstructions Author(s) Büntgen, Ulf (UEK-B) RID, ORCID, SAI
Allen, K. (AU)
Anchukaitis, K. J. (US)
Arseneault, D. (CA)
Boucher, E. (CA)
Brauning, A. (DE)
Chatterjee, S. (IN)
Cherubini, P. (CH)
Churakova (Sidorova), O. (RU)
Corona, C. (FR)
Gennaretti, F. (FR)
Griessinger, J. (DE)
Guillet, S. (CH)
Guiot, J. (FR)
Gunnarson, B. (SE)
Helama, S. (FI)
Hochreuther, P. (DE)
Hughes, M. K. (US)
Huybers, P. (US)
Kirdyanov, A. (RU)
Krusic, P. J. (SE)
Ludescher, J. (DE)
Meier, W. J.-H. (DE)
Myglan, V. S. (RU)
Nicolussi, K. (AT)
Oppenheimer, C. (GB)
Reinig, F. (CH)
Salzer, M. W. (US)
Seftigen, K. (SE)
Stine, A. R. (US)
Stoffel, M. (CH)
St George, S. (US)
Tejedor, E. (AL)
Trevino, A. (US)
Trouet, V. (US)
Wang, J. (CH)
Wilson, R. (GB)
Yang, B. (CN)
Xu, G. B. (CN)
Esper, Jan (UEK-B) SAI, ORCID, RIDNumber of authors 40 Article number 3411 Source Title Nature Communications. - : Nature Publishing Group
Roč. 12, č. 1 (2021)Number of pages 10 s. Language eng - English Country GB - United Kingdom Keywords summer temperatures ; density ; chronology ; width ; variability ; sensitivity ; persistence Subject RIV DG - Athmosphere Sciences, Meteorology OECD category Physical geography R&D Projects EF16_019/0000797 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure CzeCOS III - 90123 - Ústav výzkumu globální změny AV ČR, v. v. i. Method of publishing Open access Institutional support UEK-B - RVO:86652079 UT WOS 000687325100004 EID SCOPUS 85107533760 DOI 10.1038/s41467-021-23627-6 Annotation Tree-ring chronologies underpin the majority of annually-resolved reconstructions of Common Era climate. However, they are derived using different datasets and techniques, the ramifications of which have hitherto been little explored. Here, we report the results of a double-blind experiment that yielded 15 Northern Hemisphere summer temperature reconstructions from a common network of regional tree-ring width datasets. Taken together as an ensemble, the Common Era reconstruction mean correlates with instrumental temperatures from 1794-2016 CE at 0.79 (p<0.001), reveals summer cooling in the years following large volcanic eruptions, and exhibits strong warming since the 1980s. Differing in their mean, variance, amplitude, sensitivity, and persistence, the ensemble members demonstrate the influence of subjectivity in the reconstruction process. We therefore recommend the routine use of ensemble reconstruction approaches to provide a more consensual picture of past climate variability. Tree rings are a crucial archive for Common Era climate reconstructions, but the degree to which methodological decisions influence outcomes is not well known. Here, the authors show how different approaches taken by 15 different groups influence the ensemble temperature reconstruction from the same data. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2022 Electronic address https://www.nature.com/articles/s41467-021-23627-6
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