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Signal strength and climate calibration of a European tree-ring isotope network
- Source :
- Geophysical research letters 34, L24302 (2007). doi:10.1029/2007GL031106., Geophysical Research Letters, Geophysical Research Letters, 2007, 34 (24), ⟨10.1029/2007GL031106⟩, Geophysical Research Letters, American Geophysical Union, 2007, 34 (24), ⟨10.1029/2007GL031106⟩
- Publication Year :
- 2007
- Publisher :
- American Geophysical Union, 2007.
-
Abstract
- We present the first European network of tree ring delta(13)C and delta(18)O, containing 23 sites from Finland to Morocco. Common climate signals are found over broad climatic-ecological ranges. In temperate regions we find positive correlations with summer maximum temperatures and negative correlations with summer precipitation and Palmer Drought Severity Indices (PDSI) with no obvious speciesspecific differences. Regional delta(13)C and delta(18)O chronologies share high common variance in year-to-year variations. Long-term variations, however, exhibit differences that may reflect spatial variability in environmental forcings, age trends and/or plant physiological responses to increasing atmospheric CO(2) concentration. Rotated principal component analysis (RPCA) and climate field correlations enable the identification of four sub-regions in the delta(18)O network - northern and eastern Central Europe, Scandinavia and the western Mediterranean. Regional patterns in the delta(13)C network are less clear and are timescale dependent. Our results indicate that future reconstruction efforts should concentrate on delta(18)O data in the identified European regions.
- Subjects :
- Mediterranean climate
010506 paleontology
010504 meteorology & atmospheric sciences
δ18O
d13C
550 - Earth sciences
01 natural sciences
Mediterranean sea
Trend surface analysis
Temperate climate
Dendrochronology
ddc:550
Precipitation
20th century chronologies
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment
0105 earth and related environmental sciences
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere
tree ring
15. Life on land
d18O
European network
Geophysics
13. Climate action
General Earth and Planetary Sciences
Environmental science
Spatial variability
Physical geography
Subjects
Details
- Language :
- English
- ISSN :
- 00948276 and 19448007
- Database :
- OpenAIRE
- Journal :
- Geophysical research letters 34, L24302 (2007). doi:10.1029/2007GL031106., Geophysical Research Letters, Geophysical Research Letters, 2007, 34 (24), ⟨10.1029/2007GL031106⟩, Geophysical Research Letters, American Geophysical Union, 2007, 34 (24), ⟨10.1029/2007GL031106⟩
- Accession number :
- edsair.doi.dedup.....05b2f1e4181c9377e386752ac1b10c04