noaa-tree-22121 Southeast Sweden 1,000 Year Tree-Ring Isotopes and Climate Reconstructions Edwards, T.W.D.; Hammarlund, D.; Newton, B.W.; Sjolte, J.; Linderson, H.; Sturm, C.; St. Amour, N.A.; Bailey, J.N.-L.; Nilsson, A.L. Southeast Sweden 1,000 Year Tree-Ring Isotopes and Climate Reconstructions 2017-05-24 NCDC-Paleoclimatology ONLINE Files 10.25921/yaky-mg19 https://www.ncdc.noaa.gov/paleo/study/22121 Investigator T.W.D. Edwards Investigator D. Hammarlund Investigator B.W. Newton Investigator J. Sjolte Investigator H. Linderson Investigator C. Sturm Investigator N.A. St. Amour Investigator J.N.-L. Bailey Investigator A.L. Nilsson earth science paleoclimate tree ring age at sample end,null,null,year Common Era,null,tree ring,null,null,N,null earth science paleoclimate tree ring delta 18O,cellulose,null,per mil VSMOW,null,tree ring,null,null,N,null earth science paleoclimate climate reconstructions|tree ring relative humidity,delta 13C|delta 18O,null,standard deviation unit,Jun,climate reconstructions|tree ring,normalized,null,N,null earth science paleoclimate tree ring delta 13C,cellulose,null,per mil VPDB,null,tree ring,null,null,N,null earth science paleoclimate tree ring delta 13C,cellulose,null,per mil VPDB,null,tree ring,corrected,null,N,corrected for changing d13C of atmospheric CO2 post-1850 earth science paleoclimate tree ring age at sample start,null,null,year Common Era,null,tree ring,null,null,N,null earth science paleoclimate climate reconstructions|tree ring surface temperature,delta 13C|delta 18O,null,standard deviation unit,Feb,climate reconstructions|tree ring,normalized,null,N,null earth science paleoclimate tree-ring carbon isotopes earth science paleoclimate tree-ring oxygen isotopes geoscientificInformation 950 AD 2005 AD 1000 cal yr BP -55 cal yr BP Complete 57 59 14 16 Continent Europe Northern Europe Scandanavia Sweden Southeast Sweden>LATITUDE >LONGITUDE 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 Thomas W.D. Edwards, Dan Hammarlund, Brandi W. Newton, Jesper Sjolte, Hans Linderson, Christophe Sturm, Natalie A. St. Amour, Joscelyn N.-L. Bailey, Anders L. Nilsson 2017 Quaternary Science Reviews 165 102-110 10.1016/j.quascirev.2017.04.018 http://www.sciencedirect.com/science/article/pii/S0277379117303475

Here we report new reconstructions of winter temperature and summer moisture during the past millennium in southeastern Sweden, based on stable-isotope data from a composite tree-ring sequence, that further enhances our knowledge and understanding of seasonal climate variability in the Northern Hemisphere over the past millennium. Key features of these new climate proxy records include evidence for distinctive fluctuations in winter temperature in SE Sweden, superimposed upon the general pattern of cooling between the so-called Medieval Climate Anomaly (MCA) of the early millennium and the Little Ice Age (LIA) of the late millennium, as well as evidence for sustained summer wetness during the MCA, followed by drier and less variable conditions during the LIA. We also explore these new records within a circumpolar spatial context by employing self-organizing map analysis of meteorological reanalysis data to identify potential modern analogues of mid-tropospheric synoptic circulation types in the Northern Hemisphere extratropics that can reconcile varying seasonal climate states during the MCA and LIA in SE Sweden with less variable conditions in southwestern Canada, as portrayed by paleoclimate records developed in the same manner in an earlier study. STUDY NOTES: Pinus sylvestris tree-ring stable isotope (d13C and d18O) data from southeastern Sweden for the past 1,000 years, plus reconstructed winter temperature and summer relative humidity. IITRDB18

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/europe/sweden/se-sweden2017iso.txt Formatted Text Data File; SE Sweden Tree-Ring Isotopes, Temperature, and Relative Humidity USA/NOAA DIF Version 9.8.4 2019-03-01 2019-03-01