noaa-cave-20082 Cueva de Asiul, Spain 12,000 Year Speleothem Oxygen Isotope Data Smith, A.C.; Wynn, P.M.; Barker, P.A.; Leng, M.J.; Noble, S.R.; Tych, W. Cueva de Asiul, Spain 12,000 Year Speleothem Oxygen Isotope Data 2016-04-25 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/20082 Investigator A.C. Smith Investigator P.M. Wynn Investigator P.A. Barker Investigator M.J. Leng Investigator S.R. Noble Investigator W. Tych earth science paleoclimate speleothems delta 18O,calcium carbonate,null,standard deviation unit,null,speleothems,composited|normalized,isotope ratio mass spectrometry,N,null earth science paleoclimate speleothems delta 18O,calcium carbonate,null,standard deviation unit,null,speleothems,composited|detrended|normalized,isotope ratio mass spectrometry,N,null earth science paleoclimate speleothems age,null,null,calendar year before present,null,speleothems,null,null,N,null earth science paleoclimate speleothems age,null,95% confidence interval upper bound,calendar year before present,null,speleothems,null,null,N,null earth science paleoclimate speleothems delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null earth science paleoclimate speleothems age,null,95% confidence interval lower bound,calendar year before present,null,speleothems,null,null,N,null earth science paleoclimate speleothems oxygen isotopes geoscientificInformation 12153 cal yr BP -62 cal yr BP Complete 43.32 43.32 -3.59 -3.59 285 285 Continent Europe Southern Europe Spain Cueva de Asiul>LATITUDE 43.32>LONGITUDE -3.59 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Andrew C. Smith, Peter M. Wynn, Philip A. Barker, Melanie J. Leng, Stephen R. Noble, and Wlodek Tych 2016 Scientific Reports 24745 6 10.1038/srep24745 http://www.nature.com/articles/srep24745

Century-to-millennial scale fluctuations in precipitation and temperature are an established feature of European Holocene climates. Changes in moisture delivery are driven by complex interactions between ocean moisture sources and atmospheric circulation modes, making it difficult to resolve the drivers behind millennial scale variability in European precipitation. Here, we present two overlapping decadal resolution speleothem oxygen isotope (d18O) records from a cave on the Atlantic coastline of northern Iberia, covering the period 12.1-0 ka. Speleothem d18O reveals nine quasi-cyclical events of relatively wet-to-dry climatic conditions during the Holocene. Dynamic Harmonic Regression modelling indicates that changes in precipitation occurred with a ~1500 year frequency during the late Holocene and at a shorter length during the early Holocene. The timing of these cycles coincides with changes in North Atlantic Ocean conditions, indicating a connectivity between ocean conditions and Holocene moisture delivery. Early Holocene climate is potentially dominated by freshwater outburst events, whilst ~1500 year cycles in the late Holocene are more likely driven by changes internal to the ocean system. This is the first continental record of its type that clearly demonstrates millennial scale connectivity between the pulse of the ocean and precipitation over Europe through the entirety of the Holocene. STUDY NOTES: Oxygen isotope (d18O) data from 2 stalagmites collected in Cueva de Asiul, Matienzo, Cantabria, Spain, covering the past 12,000 years.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/spain/asiul2016composite.txt Data File; Cueva de Asiul Composite d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/spain/asiul2016asr.txt Data File; Cueva de Asiul Stalagmite ASR d18O Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/spain/asiul2016asm.txt Data File; Cueva de Asiul Stalagmite ASM d18O Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11