{"NOAAStudyId":"14192","contactInfo":{"address":"325 Broadway, E/NE31","city":"Boulder","constraints":"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.","country":"USA","dataCenterUrl":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data","email":"paleo@noaa.gov","fax":"303-497-6513","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","phone":"303-497-6280","postalCode":"80305-3328","shortName":"DOC/NOAA/NESDIS/NCEI","state":"CO","type":"CONTACT INFORMATION"},"contributionDate":"2013-04-08","dataPublisher":"NOAA","dataType":"CLIMATE RECONSTRUCTIONS","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/climate-reconstruction","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-recon-14192.xml","doi":null,"earliestYearBP":8400,"earliestYearCE":-6450,"entryId":"noaa-recon-14192","funding":[],"investigators":"Morrill, C.; Anderson, D.M.; Bauer, B.A.; Buckner, R.; Gille, E.P.; Gross, W.S.; Hartman, M.; Shah, A.","mostRecentYearBP":8000,"mostRecentYearCE":-6050,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/14192","originalSource":null,"publication":[{"abstract":"The Paleoclimate Modelling Intercomparison\r\nProject (PMIP3) now includes the 8.2 ka event as a test\r\nof model sensitivity to North Atlantic freshwater forcing.\r\nTo provide benchmarks for intercomparison, we compiled\r\nand analyzed high-resolution records spanning this event.\r\nTwo previously-described anomaly patterns that emerge are\r\ncooling around the North Atlantic and drier conditions in\r\nthe Northern Hemisphere tropics. Newer to this compilation\r\nare more robustly-defined wetter conditions in the Southern Hemisphere tropics and regionally-limited warming in\r\nthe Southern Hemisphere. Most anomalies around the globe\r\nlasted on the order of 100 to 150 yr. More quantitative reconstructions are now available and indicate cooling of ~1C and a ~20% decrease in precipitation in parts of Europe as\r\nwell as spatial gradients in d18O from the high to low latitudes. Unresolved questions remain about the seasonality of\r\nthe climate response to freshwater forcing and the extent to\r\nwhich the bipolar seesaw operated in the early Holocene.","author":null,"citation":"Morrill, C., D.M. Anderson, B.A. Bauer, R. Buckner, E.P. Gille, W.S. Gross, M. Hartman, and A. Shah. 2013. \r\nProxy benchmarks for intercomparison of 8.2 ka simulations.\r\nClimate of the Past, Vol. 9, pp. 423-432. \r\ndoi:10.5194/cp-9-423-2013","edition":null,"identifier":{"id":"10.5194/cp-9-423-2013","type":"doi","url":"http://dx.doi.org/10.5194/cp-9-423-2013"},"issue":null,"journal":"Climate of the Past","pages":null,"pubRank":"1","pubYear":2013,"reportNumber":null,"title":"Proxy benchmarks for intercomparison of 8.2 ka simulations","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":["abrupt climate change","Air Temperature Reconstruction","Precipitation Reconstruction"],"site":[{"NOAASiteId":"22723","geo":{"geoType":"Feature","geometry":{"coordinates":["-90","90","-180","180"],"type":"POLYGON"},"properties":{"easternmostLongitude":"180","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"90","southernmostLatitude":"-90","westernmostLongitude":"-180"}},"locationName":"Geographic Region>Global","mappable":"N","paleoData":[{"NOAADataTableId":"24138","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>reconstructions>air temperature"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/8.2ka/8.2ka-data.csv","linkText":"8.2ka-data.csv","urlDescription":"Data","variables":[]}],"dataTableName":"Morrill2013-8.2k","dataTableNotes":null,"earliestYear":8400,"earliestYearBP":8400,"earliestYearCE":-6450,"mostRecentYear":8000,"mostRecentYearBP":8000,"mostRecentYearCE":-6050,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Global"}],"studyCode":null,"studyName":"Proxy benchmarks for intercomparison of 8.2 ka simulations","studyNotes":"This compilation of proxy records includes quality-controlled values from cores spanning part or all\nof the period between 7,400 and 9,000 calendar years before present, provided on a common age scale\n(calendar years before present, where present = 1950 A.D.). The main data file is in comma-separated \nvalues format and first gives metadata information for each of the cores (i.e., site name, variable \nmeasured, latitude, longitude, journal citation). Below the metadata, data for all time series are\npresented in three columns. The first column is a Time series Index, which identifies the time series\naccording to the metadata table; the second column is age in calendar years BP; and the third column \nis the proxy timeseries values. Since this data set only spans a period near 8,200 calendar years\nbefore present, these are often subsets of a core's full data. All data from a core as well as chronology \nto FTP files are listed below \nin the \"File URL\" column.\n","version":"1.0","xmlId":"12193"}