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Recognising bias in Common Era temperature reconstructions

A steep decline in the quality and quantity of available climate proxy records before medieval times challenges any comparison of reconstructed temperature and hydroclimate trends and extremes between the first and second half of the Common Era. Understanding of the physical causes, ecological respo...

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Published in:Dendrochronologia (Verona) 2022-08, Vol.74, p.125982, Article 125982
Main Authors: Büntgen, Ulf, Arseneault, Dominique, Boucher, Étienne, Churakova (Sidorova), Olga V., Gennaretti, Fabio, Crivellaro, Alan, Hughes, Malcolm K., Kirdyanov, Alexander V., Klippel, Lara, Krusic, Paul J., Linderholm, Hans W., Ljungqvist, Fredrik C., Ludescher, Josef, McCormick, Michael, Myglan, Vladimir S., Nicolussi, Kurt, Piermattei, Alma, Oppenheimer, Clive, Reinig, Frederick, Sigl, Michael, Vaganov, Eugene A., Esper, Jan
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Language:English
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Summary:A steep decline in the quality and quantity of available climate proxy records before medieval times challenges any comparison of reconstructed temperature and hydroclimate trends and extremes between the first and second half of the Common Era. Understanding of the physical causes, ecological responses and societal consequences of past climatic changes, however, demands highly-resolved, spatially-explicit, seasonally-defined and absolutely-dated archives over the entire period in question. Continuous efforts to improve existing proxy records and reconstruction methods and to develop new ones, as well as clear communication of all uncertainties (within and beyond academia) must be central tasks for the paleoclimate community.
ISSN:1125-7865
1612-0051
DOI:10.1016/j.dendro.2022.125982