Počet záznamů: 1
Different maximum latewood density and blue intensity measurements techniques reveal similar results
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SYSNO ASEP 0496018 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Different maximum latewood density and blue intensity measurements techniques reveal similar results Tvůrce(i) Kaczka, R. J. (PL)
Spyt, B. (PL)
Janecka, K. (DE)
Beil, I. (DE)
Büntgen, Ulf (UEK-B) RID, ORCID, SAI
Scharnweber, T. (DE)
Nievergelt, D. (CH)
Wilmking, M. (DE)Celkový počet autorů 8 Zdroj.dok. Dendrochronologia. - : Elsevier - ISSN 1125-7865
Roč. 49, JUN (2018), s. 94-101Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. IT - Itálie Klíč. slova summer temperature-variations ; tree-ring chronologies ; wood density ; paleoclimate proxy ; giant mountains ; picea-abies ; climate ; growth ; reconstruction ; width ; Climate reconstruction ; Dendrochronology ; Maximum Wood Density ; Blue intensity ; Norway spruce ; Tatra Mountains Vědní obor RIV DB - Geologie a mineralogie Obor OECD Physical geography CEP LO1415 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UEK-B - RVO:86652079 UT WOS 000433995400011 EID SCOPUS 85044724653 DOI 10.1016/j.dendro.2018.03.005 Anotace Annually resolved and absolutely dated Maximum Latewood Density (MXD) and Blue Intensity (BI) measurements are frequently used for reconstructing summer temperature variability over the last centuries to millennia. A direct comparison of the outcome of both methods using similar material is needed due to how quickly this method is being adopted. The application of slightly different measuring systems (hardware) and analysis tools (software) in tandem with different wood samples and preparation procedures further challenges any straightforward assessment. Here we process 26 Norway spruce samples from the upper timberline in the Polish Tatra Mountains with the six most frequently used MXD and BI applications. Although offset is found in the raw MXD and BI data (0.04-0.13 g/cm(3) and 0.45-1.58 dimensionless blue intensity), interannual and longer-term fluctuations are significantly (p < 0.01) positively correlated between all MXD and BI time-series. Our results emphasize the potential of faster and cheaper, as well as overall more user-friendly techniques to generate reliable MXD surrogates for high-frequency dendroclimatological studies. Although the correlations between MXD and BI were lower than within MXD and BI, the results of growth-climate response performed for both proxies show only marginal differences. The obtained level-offset further questions the suitability of joining different density surrogates for developing long-term composite chronologies to reconstruct low-frequency climate variability. Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2019
Počet záznamů: 1