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

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    SYSNO ASEP0544714
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleThe 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 authors40
    Article number3411
    Source TitleNature Communications. - : Nature Publishing Group
    Roč. 12, č. 1 (2021)
    Number of pages10 s.
    Languageeng - English
    CountryGB - United Kingdom
    Keywordssummer temperatures ; density ; chronology ; width ; variability ; sensitivity ; persistence
    Subject RIVDG - Athmosphere Sciences, Meteorology
    OECD categoryPhysical geography
    R&D ProjectsEF16_019/0000797 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
    Research InfrastructureCzeCOS III - 90123 - Ústav výzkumu globální změny AV ČR, v. v. i.
    Method of publishingOpen access
    Institutional supportUEK-B - RVO:86652079
    UT WOS000687325100004
    EID SCOPUS85107533760
    DOI10.1038/s41467-021-23627-6
    AnnotationTree-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.
    WorkplaceGlobal Change Research Institute
    ContactNikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268
    Year of Publishing2022
    Electronic addresshttps://www.nature.com/articles/s41467-021-23627-6
Number of the records: 1  

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