noaa-other-16973 PAGES2k Arctic Database v1.1 August 2014 McKay, N.P.; Kaufman, D.S. PAGES2k Arctic Database v1.1 August 2014 2014-08-19 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/16973 Investigator N.P. McKay Investigator D.S. Kaufman earth science paleoclimate others geoscientificInformation Air Temperature Reconstruction PAGES 2k Network PAGES Arctic 2k 0 AD 2012 AD 1950 cal yr BP -62 cal yr BP Complete 60 90 -180 180 Geographic Region Arctic Arctic>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 Nicholas P. McKay and Darrell S. Kaufman 2014 Nature Scientific Data 140026 1 10.1038/sdata.2014.26 http://www.nature.com/articles/sdata201426

Robust climate reconstructions of the most recent centuries and millennia are invaluable for placing modern warming in the context of natural variability. Here we present an extended and revised database (version 1.1) of proxy temperature records recently used to reconstruct Arctic temperatures for the past 2,000 years. The datasets are presented in a machine-readable format, and have been extended with the geochronologic data and consistently generated time-uncertain ensembles, which will be useful in future analyses of the influence of geochronologic uncertainty. A standardized description of the seasonality of the temperature response for each record, as reported by the original authors, is also included to motivate a more nuanced approach to integrating records with variable seasonal sensitivities. Despite the predominance of seasonal, rather than annual, temperature responders in the database, comparisons with the instrumental record of temperature suggest that, as a whole, the datasets best record annual temperature variability across the Arctic, especially in northeast Canada and Greenland, where the density of records is highest. STUDY NOTES: Update 1.1 to the Arctic portion of the PAGES2k 2013 database. This resource description was produced with support from the NSF project entitled "EarthCube RCN: C4P: Collaboration and Cyberinfrastructure for Paleogeosciences," (NSF ICER-1340301) under the direction of Kerstin A. Lehnert, Mark Uhen, John W. Williams, Christopher J. Jenkins Revision 1.1.1 added 3/4/2015. Includes database zipfile arc2k_v1.1.1.zip, Excel update history files MetadataTablev1.1.1.xlsx, Reconstruction_Arc2kv1.1.1.xlsx, and Revisions_v1.1.1.xlsx

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/arc2k_v1.1.1.zip Compressed ZIP Data File; PAGES2k Arctic Database v1.1.1 GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/arc2k_v1.1.zip Compressed ZIP Data File; PAGES2k Arctic Database v1.1 GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/arctic2014temperature-v1.1.txt Text Data File; Arctic PAGES2k 2000 Year Temperature Reconstruction v.1.1 GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/MetadataTablev1.1.1.xlsx Excel Data File; Metadata Table v1.1.1 GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/Revisions_v1.1.1.xlsx Excel Data File; Revision History v1.1.1 GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/Reconstruction_Arc2kv1.1.1.xlsx Excel Data File; Reconstruction v1.1.1 USA/NOAA DIF Version 9.8.4 2019-03-27 2019-03-27