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An annual-resolution stable isotope record from Swiss subfossil pine trees growing in the late Glacial

Urheber*innen
/persons/resource/mpauly

Pauly,  Maren
4.3 Climate Dynamics and Landscape Evolution, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/ghelle

Helle,  G.
4.3 Climate Dynamics and Landscape Evolution, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Büntgen,  Ulf
External Organizations;

Wacker,  Lukas
External Organizations;

Treydte,  Kerstin
External Organizations;

Reinig,  Frederick
External Organizations;

Turney,  Chris
External Organizations;

Nievergelt,  Daniel
External Organizations;

Kromer,  Bernd
External Organizations;

Friedrich,  Michael
External Organizations;

Sookdeo,  Adam
External Organizations;

/persons/resource/heinrich

Heinrich,  Ingo
4.3 Climate Dynamics and Landscape Evolution, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Riedel,  Frank
External Organizations;

/persons/resource/balting

Balting,  Daniel
4.3 Climate Dynamics and Landscape Evolution, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/brau

Brauer,  A.
4.3 Climate Dynamics and Landscape Evolution, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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Zitation

Pauly, M., Helle, G., Büntgen, U., Wacker, L., Treydte, K., Reinig, F., Turney, C., Nievergelt, D., Kromer, B., Friedrich, M., Sookdeo, A., Heinrich, I., Riedel, F., Balting, D., Brauer, A. (2020): An annual-resolution stable isotope record from Swiss subfossil pine trees growing in the late Glacial. - Quaternary Science Reviews, 247, 106550.
https://doi.org/10.1016/j.quascirev.2020.106550


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5003181
Zusammenfassung
Previous studies have suggested that the Late Glacial period (LG; ∼14 600–11 700 cal BP) was characterised by abrupt and extreme climate variability over the European sector of the North Atlantic. The limited number of precisely dated, high-resolution proxy records, however, restricts our understanding of climate dynamics through the LG. Here, we present the first annually-resolved tree-cellulose stable oxygen and carbon isotope chronology (δ18Otree, δ13Ctree) covering the LG between ∼14 050 and 12 795 cal BP, generated from a Swiss pine trees (P. sylvestris; 27 trees, 1255 years). Comparisons of δ18Otree with regional lake and ice core δ18O records reveal that LG climatic changes over the North Atlantic (as recorded by Greenland Stadials and Inter-Stadials) were not all experienced to the same degree in the Swiss trees. Possible explanations include: (1) LG climate oscillations may be less extreme during the summer in Switzerland, (2) tree-ring δ18O may capture local precipitation and humidity changes and/or (3) decayed cellulose and various micro-site conditions may overprint large-scale temperature trends found in other δ18O records. Despite these challenges, our study emphasises the potential to investigate hydroclimate conditions using subfossil pine stable isotopes.