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The potential of speleothems from western europe as recorders of regional climate: a critical assessment of the SISAL database
- Source :
- Digital.CSIC. Repositorio Institucional del CSIC, instname
- Publication Year :
- 2018
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2018.
-
Abstract
- Western Europe is the region with the highest density of published speleothem δ18O (δ18Ospel) records worldwide. Here, we review these records in light of the recent publication of the Speleothem Isotopes Synthesis and AnaLysis (SISAL) database. We investigate how representative the spatial and temporal distribution of the available records is for climate in Western Europe and review potential sites and strategies for future studies. We show that spatial trends in precipitation δ18O are mirrored in the speleothems, providing means to better constrain the factors influencing δ18Ospel at a specific location. Coherent regional δ18Ospel trends are found over stadial-interstadial transitions of the last glacial, especially in high altitude Alpine records, where this has been attributed to a strong temperature control of δ18Ospel. During the Holocene, regional trends are less clearly expressed, due to lower signal-to-noise ratios in δ18Ospel, but can potentially be extracted with the use of statistical methods. This first assessment highlights the potential of the European region for speleothem palaeoclimate reconstruction, while underpinning the importance of knowing local factors for a correct interpretation of δ18Ospel.<br />F.A.L. acknowledges funding by the Swiss National Science Foundation (SNSF) grant P2EZP2_172213. S.A.-M. and L.C.-B. acknowledge funding from the Geological Survey Ireland (Short Call 2017; grant number 2017-SC-056) and from the ERC-funded project GC2.0 (Global Change 2.0: Unlocking the past for a clearer future, grant number 694481). C.P.-M. acknowledges funding by the Government of Aragón predoctoral research grant B158/13 and CGL2016-77479-R (SPYRIT) project. K.R. acknowledges financial support by the German Research Foundation (DFG) grant RE3994-1/1.
- Subjects :
- geology
010506 paleontology
010504 meteorology & atmospheric sciences
δ18O
Cave
Distribution (economics)
Speleothem
Western Europe
010502 geochemistry & geophysics
computer.software_genre
Palaeoclimate
01 natural sciences
palaeoclimate
cave
Earth and Planetary Sciences (miscellaneous)
oxygen isotope
Precipitation
Glacial period
Holocene
speleothem
0105 earth and related environmental sciences
Earth-Surface Processes
geography
geography.geographical_feature_category
Database
business.industry
13. Climate action
Western europe
Oxygen isotopes
SISAL database
business
computer
Subjects
Details
- ISSN :
- 2571550X
- Database :
- OpenAIRE
- Journal :
- Digital.CSIC. Repositorio Institucional del CSIC, instname
- Accession number :
- edsair.doi.dedup.....a4d6f028575db874d20ba81cc6ee9b14