noaa-cave-18516 Uamh an Tartair Cave, Northwest Scotland 3000 Year Speleothem Growth Rate Data Baker, A.; Hellstrom, J.C.; Kelly, B.F.J.; Mariethoz, G.; Trouet, V. Uamh an Tartair Cave, Northwest Scotland 3000 Year Speleothem Growth Rate Data 2015-06-11 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/18516 Investigator A. Baker Investigator J.C. Hellstrom Investigator B.F.J. Kelly Investigator G. Mariethoz Investigator V. Trouet earth science paleoclimate speleothems growth rate,calcium carbonate,null,standard deviation unit,null,speleothems,normalized,ultraviolet microscopy,N,null earth science paleoclimate speleothems growth rate,calcium carbonate,null,standard deviation unit,null,speleothems,composited,ultraviolet microscopy,N,averaged from multiple samples earth science paleoclimate speleothems age,null,null,calendar year before present,null,speleothems,null,null,N,present defined as 2010 CE earth science paleoclimate speleothems age,null,null,year Common Era,null,speleothems,null,null,N,null earth science paleoclimate speleothems growth rate,calcium carbonate,null,micrometer per year,null,speleothems,raw,ultraviolet microscopy,N,null earth science paleoclimate speleothems lithology geoscientificInformation North Atlantic Oscillation -991 AD 2004 AD 2941 cal yr BP -54 cal yr BP Complete 58.15 58.15 -4.98 -4.98 220 220 Continent Europe Northern Europe British Isles United Kingdom Uamh an Tartair>LATITUDE 58.15>LONGITUDE -4.98 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 Andy Baker, John C. Hellstrom, Bryce F. J. Kelly, Gregoire Mariethoz, and Valerie Trouet 2015 Scientific Reports 10307 5 10.1038/srep10307 http://www.nature.com/srep/2015/150611/srep10307/full/srep10307.html

Annually laminated stalagmites can be used to construct a precise chronology, and variations in laminae thickness provide an annual growth-rate record that can be used as a proxy for past climate and environmental change. Here, we present and analyse the first composite speleothem annual growth-rate record based on five stalagmites from the same cave system in northwest Scotland, where precipitation is sensitive to North Atlantic climate variability and the winter North Atlantic Oscillation (NAO). Our 3000-year record confirms persistently low growth-rates, reflective of positive NAO states, during the Medieval Climate Anomaly (MCA). Another persistently low growth period occurring at 290-550 CE coincides with the European Migration Period, and a subsequent period of sustained fast growth-rate (negative NAO) from 600-900 AD provides the climate context for the Viking Age in northern and western Europe. STUDY NOTES: This is the final compilation of stalagmite growth-rate data from Uamh an Tartair cave, Sutherland, northwest Scotland. Uamh an Tartair (Cave of the roaring), is located near Inchnadamph, Sutherland, northwest Scotland. Individual stalagmite growth-rate series are archived with a new composite series, SUcomp. The 3000 year composite stalagmite growth rate record has an instrumental-period calibration with the North Atlantic Oscillation, so it is also a long annually-resolved proxy record of the NAO and effectively an extension of the NAO reconstruction of Trouet et al. 2009, Science 324:78. Additional information on this project is available at: https://theconversation.com/stalagmites-preserve-3-000-years-of-northern-hemisphere-climate-43254

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/scotland/tartair2015su963.txt Data File; Speleothem SU963 Growth Rate Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/scotland/tartair2015sucomp.txt Data File; Composite Normalized Speleothem Growth Rate Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/scotland/tartair2015su967.txt Data File; Speleothem SU967 Growth Rate Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/scotland/tartair2015su032.txt Data File; Speleothem SU032 Growth Rate Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/scotland/tartair2015su962.txt Data File; Speleothem SU962 Growth Rate Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/scotland/tartair2015su961.txt Data File; Speleothem SU961 Growth Rate Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11