noaa-recon-20429 Central Scandinavia 1200 Year MXD April-September Temperature Reconstruction Zhang, P.; Linderholm, H.W.; Gunnarson, B.E.; Björklund, J.; Chen, D. Central Scandinavia 1200 Year MXD April-September Temperature Reconstruction 2016-08-18 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/20429 Investigator P. Zhang Investigator H.W. Linderholm Investigator B.E. Gunnarson Investigator J. Björklund Investigator D. Chen earth science paleoclimate climate reconstructions|tree ring age,null,null,year Common Era,null,climate reconstructions|tree ring,null,null,N,null earth science paleoclimate climate reconstructions|tree ring surface temperature,ring density,null,degree Celsius,Apr-Sep,climate reconstructions|tree ring,anomalized,regression analysis,N,based on latewood density; anomaly from 1961-1990 period; simple linear regression earth science paleoclimate reconstructions air temperature geoscientificInformation Air Temperature Reconstruction PISY Pinus sylvestris L. Scots pine Scotch pine 850 AD 2011 AD 1100 cal yr BP -61 cal yr BP Complete 62.8 63.2 13.2 14.9 500 500 Continent Europe Northern Europe Scandanavia Sweden Jämtland 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 Peng Zhang, Hans W. Linderholm, Björn E. Gunnarson, Jesper Björklund, and Deliang Chen 2016 Climate of the Past 12 1297-1312 10.5194/cp-12-1297-2016 http://www.clim-past.net/12/1297/2016/

Despite the emergence of new high-resolution temperature reconstructions around the world, only a few cover the Medieval Climate Anomaly (MCA). Here we present C-Scan, a new Scots pine tree-ring density-based reconstruction of warm-season (April-September) temperatures for central Scandinavia back to 850 CE, extending the previous reconstruction by 250 years. C-Scan is based on samples collected in a confined mountain region, adjusted for their differences in altitude and local environment, and standardised using the new RSFi algorithm to preserve low-frequency signals. In C-Scan, the warm peak of MCA occurs ca. 1000-1100 CE, and the Little Ice Age (LIA) between 1550 and 1900 CE. Moreover, during the last millennium the coldest decades are found around 1600 CE, and the warmest 10 and 30 years occur in the most recent century. By comparing C-Scan with other millennium-long temperature reconstructions from Fennoscandia, regional differences in multi-decadal temperature variability, especially during the warm period of the last millennium are revealed. Although these differences could be due to methodological reasons, they may indicate asynchronous warming patterns across Fennoscandia. Further investigation of these regional differences and the reasons and mechanisms behind them are needed. STUDY NOTES: Central Scandinavia (C-Scan) 1200-year warm season (April-September) mean temperature reconstruction, based on tree-ring maximum density (MXD) data from Jämtland, Sweden, standardized using the RSFi algorithm, a hybrid of Regional Curve Standardization (RCS) and individual Signal-Free (SF) standardisation.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/europe/c-scan2016mxd-temp.txt Data File; C-Scan MXD April-September Temperature Reconstruction USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11