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| Titel |
Climatic reconstruction from larch in Slovenia |
| VerfasserIn |
Iain Robertson, Tom Levanič, Polona Hafner, Mary Gagen, Rod Bale, Neil J. Loader, Emmi Hilasvuori, Eloni Sonninen, Högne Jungner, Danny McCarroll |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250044155
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| Zusammenfassung |
| Tree-ring stable isotope chronologies are now routinely based upon multiple samples with a
high degree of replication. Recent technological advances have enabled climate to be
reconstructed with a high degree of statistical veracity. Most of these pioneering
studies have focused upon reconstructing the climate of the last 1000 years to enable
recent changes to be assessed within the context of naturally changing climatic
system.
A new ring-width chronology from living trees and archaeological samples was
developed for European larch (Larix decidua Mill.) growing at Veža in the southeastern part
of the Alps in Slovenia. Carbon, oxygen and non-exchangeable hydrogen isotope
chronologies have been developed on these samples. The carbon isotope chronology was
corrected for the industrial decline in atmospheric carbon dioxide isotopic values and the
response to increasing atmospheric carbon dioxide concentrations. All isotope chronologies
were calibrated against climatic data from the nearby Ljubljana meteorological station
over the period 1900 to present. The isotope chronologies have a high degree of
common forcing demonstrated by a high Expressed Population Signal (EPS>0.85)
and correlate well with meteorological data. The predictive skill of reconstructed
climatic variables was tested using standard metrics and the calibration dataset
split to enable the temporal stability of the climatic response to be investigated. |
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