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Setting the tree-ring record straight
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SYSNO ASEP 0535241 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Setting the tree-ring record straight Tvůrce(i) Ludescher, J. (DE)
Bunde, A. (DE)
Büntgen, Ulf (UEK-B) RID, ORCID, SAI
Schellnhuber, H. J. (DE)Celkový počet autorů 4 Zdroj.dok. Climate Dynamics. - : Springer - ISSN 0930-7575
Roč. 55, č. 11-12 (2020), s. 3017-3024Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova past climate ; temperature ; variability ; reconstructions ; persistence ; Tree-ring ; Temperature reconstructions ; Harvest dates ; Long-term persistence ; Hurst exponent Vědní obor RIV DG - Vědy o atmosféře, meteorologie Obor OECD Meteorology and atmospheric sciences Způsob publikování Open access Institucionální podpora UEK-B - RVO:86652079 UT WOS 000566088600002 EID SCOPUS 85090211773 DOI 10.1007/s00382-020-05433-w Anotace Tree-ring chronologies are the main source for annually resolved and absolutely dated temperature reconstructions of the last millennia and thus for studying the intriguing problem of climate impacts. Here we focus on central Europe and compare the tree-ring based temperature reconstruction with reconstructions from harvest dates, long meteorological measurements, and historical model data. We find that all data are long-term persistent, but in the tree-ring based reconstruction the strength of the persistence quantified by the Hurst exponent is remarkably larger (h congruent to 1.02) than in the other data (h = 0.52-0.69), indicating an unrealistic exaggeration of the historical temperature variations. We show how to correct the tree-ring based reconstruction by a mathematical transformation that adjusts the persistence and leads to reduced amplitudes of the warm and cold periods. The new transformed record agrees well with both the observational data and the harvest dates-based reconstructions and allows more realistic studies of climate impacts. It confirms that the present warming is unprecedented. Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2021 Elektronická adresa https://link.springer.com/article/10.1007/s00382-020-05433-w
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