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Five centuries of Southern Moravian drought variations revealed from living and historic tree rings

Büntgen, Ulf ; Brázdil, Rudolf ; Dobrovolný, Petr ; Trnka, Mirek ; Kyncl, Tomáš

In: Theoretical and Applied Climatology, 2011, vol. 105, no. 1-2, p. 167-180

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    Titre
    • Five centuries of Southern Moravian drought variations revealed from living and historic tree rings
    Auteur
    • Büntgen, Ulf. Swiss Federal Research Institute WSL, 8903, Birmensdorf, Switzerland
    • Brázdil, Rudolf. Institute of Geography, Masaryk University, 61137, Brno, Czech Republic
    • Dobrovolný, Petr. Institute of Geography, Masaryk University, 61137, Brno, Czech Republic
    • Trnka, Mirek. Institute of Agrosystems and Bioclimatology, Mendel University, 61300, Brno, Czech Republic
    • Kyncl, Tomáš. Moravian Dendro-Labor, 61600, Brno, Czech Republic
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Theoretical and Applied Climatology, 2011, vol. 105, no. 1-2, p. 167-180. Springer Vienna
    Autre version électronique
    Classification
    • Sciences de la terre
    Identifiant OAI-PMH
    • oai:doc.rero.ch:316087
    Summary
    Past, present, and projected fluctuations of the hydrological cycle, associated to anthropogenic climate change, describe a pending challenge for natural ecosystems and human civilizations. Here, we compile and analyze long meteorological records from Brno, Czech Republic and nearby tree-ring measurements of living and historic firs from Southern Moravia. This unique paleoclimatic compilation together with innovative reconstruction methods and error estimates allows regional-scale May-June drought variability to be estimated back to ad 1500. Driest and wettest conditions occurred in 1653 and 1713, respectively. The ten wettest decades are evenly distributed throughout time, whereas the driest episodes occurred in the seventeenth century and from the 1840s onward. Discussion emphasizes agreement between the new reconstruction and documentary evidence, and stresses possible sources of reconstruction uncertainty including station inhomogeneity, limited frequency preservation, reduced climate sensitivity, and large-scale constraints