The influence of decision-making in tree ring-based climate reconstructions

Büntgen, Ulf; Allen, K.; Anchukaitis, K. J.; Arseneault, D.; Boucher, E.; Brauning, A.; Chatterjee, S.; Cherubini, P.; Churakova (Sidorova), O.; Corona, C.; Gennaretti, F.; Griessinger, J.; Guillet, S.; Guiot, J.; Gunnarson, B.; Helama, S.; Hochreuther, P.; Hughes, M. K.; Huybers, P.; Kirdyanov, A.; Krusic, P. J.; Ludescher, J.; Meier, W. J.-H.; Myglan, V. S.; Nicolussi, K.; Oppenheimer, C.; Reinig, F.; Salzer, M. W.; Seftigen, K.; Stine, A. R.; Stoffel, M.; St George, S.; Tejedor, E.; Trevino, A.; Trouet, V.; Wang, J.; Wilson, R.; Yang, B.; Xu, G. B.; Esper, Jan

doi:https://dx.doi.org/10.1038/s41467-021-23627-6

Number of the records: 1

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, RID}
Number 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

Number of the records: 1