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Autoren: Esper, Jan
Hartl, Claudia
Tejedor, Ernesto
Luis, Martin de
Günther, Björn
Büntgen, Ulf
Titel: High-resolution temperature variability reconstructed from black pine tree ring densities in southern Spain
Online-Publikationsdatum: 7-Sep-2020
Erscheinungsdatum: 2020
Sprache des Dokuments: Englisch
Zusammenfassung/Abstract: The presence of an ancient, high-elevation pine forest in the Natural Park of Sierras de Cazorla in southern Spain, including some trees reaching >700 years, stimulated efforts to develop high-resolution temperature reconstructions in an otherwise drought-dominated region. Here, we present a reconstruction of spring and fall temperature variability derived from black pine tree ring maximum densities reaching back to 1350 Coefficient of Efficiency (CE). The reconstruction is accompanied by large uncertainties resulting from low interseries correlations among the single trees and a limited number of reliable instrumental stations in the study region. The reconstructed temperature history reveals warm conditions during the early 16th and 19th centuries that were of similar magnitude to the warm temperatures recorded since the late 20th century. A sharp transition from cold conditions in the late 18th century (t1781–1810 = −1.15 °C ± 0.64 °C) to warm conditions in the early 19th century (t1818–1847 = −0.06 °C ± 0.49 °C) is centered around the 1815 Tambora eruption (t1816 = −2.1 °C ± 0.55 °C). The new reconstruction from southern Spain correlates significantly with high-resolution temperature histories from the Pyrenees located ~600 km north of the Cazorla Natural Park, an association that is temporally stable over the past 650 years (r1350–2005 > 0.3, p < 0.0001) and particularly strong in the high-frequency domain (rHF > 0.4). Yet, only a few of the reconstructed cold extremes (1453, 1601, 1816) coincide with large volcanic eruptions, suggesting that the severe cooling events in southern Spain are controlled by internal dynamics rather than external (volcanic) forcing.
DDC-Sachgruppe: 550 Geowissenschaften
550 Earth sciences
Veröffentlichende Institution: Johannes Gutenberg-Universität Mainz
Organisationseinheit: FB 09 Chemie, Pharmazie u. Geowissensch.
Veröffentlichungsort: Mainz
Version: Published version
Publikationstyp: Zeitschriftenaufsatz
Nutzungsrechte: CC BY
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Zeitschrift: Atmosphere
Seitenzahl oder Artikelnummer: 748
Verlag: MDPI AG
Verlagsort: Basel
Erscheinungsdatum: 2020
ISSN: 2073-4433
URL der Originalveröffentlichung:
DOI der Originalveröffentlichung: 10.3390/atmos11070748
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