{"xmlId":"20088","NOAAStudyId":"22110","studyName":"Ocean Circulation and Carbon Cycle (OC3) Project's Global Compilation of Sediment Core Top (Late Holocene) Carbon Isotope (´13C) Data From Benthic Foraminifera (Cibicides) Version 1.1","doi":"https://doi.org/10.25921/my9p-pm54","uuid":"d6c7d3b0-281b-4d55-8d70-1723d24a565b","dataPublisher":"NOAA","contactInfo":{"type":"CONTACT INFORMATION","shortName":"DOC/NOAA/NESDIS/NCEI","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","address":"325 Broadway, E/NE31","city":"Boulder","state":"CO","postalCode":"80305-3328","country":"USA","dataCenterUrl":"https://www.ncei.noaa.gov/products/paleoclimatology","email":"paleo@noaa.gov","phone":"828-271-4800","fax":null,"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."},"dataType":"PALEOCEANOGRAPHY","investigators":"Schmittner, A.; Bostock, H.C.","investigatorDetails":[{"firstName":"Andreas","lastName":"Schmittner","initials":"A.","orcId":"0000-0002-8376-0843"},{"firstName":"Helen","lastName":"Bostock","initials":"H.C.","orcId":"0000-0002-8903-8958"}],"version":"1.0","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"1634719"}],"studyNotes":null,"onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/22110","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-ocean-22110.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-ocean-22110.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/paleoceanography","studyCode":null,"scienceKeywords":null,"reconstruction":"N","contributionDate":"2017-03-27","entryId":"noaa-ocean-22110","earliestYearBP":6000,"mostRecentYearBP":0,"earliestYearCE":-4050,"mostRecentYearCE":1950,"publication":[{"author":{"name":"Schmittner, Andreas, Helen C. Bostock, Olivier Cartapanis, William B. Curry, Helena L. Filipsson, Eric D. Galbraith, Julia Gottschalk, Juan Carlos Herguera, Babette Hoogakker, Samuel Jaccard, Lorraine E. Lisiecki, David C. Lund, Gema Martínez-Méndez, Jean Lynch-Stieglitz, Andreas Mackensen, Elisabeth Michel, Alan C. Mix, Delia W. Oppo, Carlye D. Peterson, Janne Repschläger, Elisabeth L. Sikes, Howard J. Spero, and Claire Waelbroeck"},"pubYear":2017,"title":"Calibration of the Carbon Isotope Composition (d13C) of Benthic Foraminifera","journal":"Paleoceanography","volume":"32","edition":null,"issue":"6","pages":null,"reportNumber":null,"citation":"Schmittner, Andreas, Helen C. Bostock, Olivier Cartapanis, William B. Curry, Helena L. Filipsson, Eric D. Galbraith, Julia Gottschalk, Juan Carlos Herguera, Babette Hoogakker, Samuel Jaccard, Lorraine E. Lisiecki, David C. Lund, Gema Martínez-Méndez, Jean Lynch-Stieglitz, Andreas Mackensen, Elisabeth Michel, Alan C. Mix, Delia W. Oppo, Carlye D. Peterson, Janne Repschläger, Elisabeth L. Sikes, Howard J. Spero, and Claire Waelbroeck. 2017. Calibration of the Carbon Isotope Composition (d13C) of Benthic Foraminifera. Paleoceanography, 32(6). doi: 10.1002/2016pa003072","type":"publication","identifier":{"type":"doi","id":"10.1002/2016pa003072","url":"http://dx.doi.org/10.1002/2016pa003072"},"abstract":"The carbon isotope composition (´13C) of seawater provides valuable insight on ocean circulation, air-sea exchange, the biological pump and the global carbon cycle, and is reflected by the ´13C of foraminifera tests. Here, more than 1,700 ´13C observations of the benthic foraminifera genus Cibicides from late Holocene sediments (´13CCibnat) are compiled and compared with newly updated estimates of the natural (pre-industrial) water-column ´13C of dissolved inorganic carbon (´13CDICnat) as part of the international Ocean Circulation and Carbon Cycling (OC3) project. Using selection criteria based on the spatial distance between samples we find high correlation between ´13CCibnat and ´13CDICnat, confirming earlier work. Regression analyses indicate significant carbonate ion (-2.6±0.4)×10-3 0/(¼mol kg-1) [CO32-] and pressure (-4.9±1.7)×10-3 0 m-1 (depth) effects, which we use to propose a new global calibration for predicting ´13CDICnat from ´13CCibnat. This calibration is shown to remove some systematic regional biases and decrease errors compared with the one-to-one relationship (´13CDICnat = ´13CCibnat). However, these effects and the error reductions are relatively small, which suggests that most conclusions from previous studies using a one-to-one relationship remain robust. The remaining standard error of the regression is generally à E 0.25 0, with larger values found in the southeast Atlantic and Antarctic (à E 0.4 0) and for species other than Cibicides wuellerstorfi. Discussion of species effects and possible sources of the remaining errors may aid future attempts to improve the use of the benthic ´13C record.","pubRank":"1"}],"site":[{"NOAASiteId":"Unspecified","siteName":"Unspecified","siteCode":null,"mappable":null,"locationName":null,"geo":null,"paleoData":[{"dataTableName":"Global Sediment Core Top Schmittner17","NOAADataTableId":"32775","earliestYear":6000,"mostRecentYear":0,"timeUnit":"cal yr BP","earliestYearBP":6000,"mostRecentYearBP":0,"earliestYearCE":-4050,"mostRecentYearCE":1950,"coreLengthMeters":null,"dataTableNotes":"core flag : 0 - unassigned\r\n1 (best) - MC (Multicore - some institutions might just use M), BC (Box Core), or Push Core (which is not PC, but would be from a submersible such as Alvin). \r\n2 (good)- TC (trigger core),GC (gravity core), KC (kasten core)\r\n3 (acceptable)- PC (piston core), JC or JPC (jumbo piston core), GPC (giant piston core)\r\n4 (last resort)- H,R,X (drill cores: H = hydraulic, R=Rotory, X=extended core barrel)\r\n5 (try not to use)- G (grab), or D (dredge)","species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/schmittner2017/schmittner2017-coretop.txt","urlDescription":"Formatted Text File","linkText":"Core Top Data","variables":[],"NOAAKeywords":["earth science>paleoclimate>paleocean>carbon isotopes"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/schmittner2017/rS17/","urlDescription":"Data Folder","linkText":"R Scripts","variables":[],"NOAAKeywords":["earth science>paleoclimate>paleocean>carbon isotopes"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/schmittner2017/coretop_supp/","urlDescription":"Data Folder","linkText":"Supplementary files including datasets used and original Excel file","variables":[],"NOAAKeywords":["earth science>paleoclimate>paleocean>carbon isotopes"]}]}]}],"reference":{"pastThesaurusSkos":"https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf","pastThesaurusExplorer":"https://www.ncei.noaa.gov/access/paleo-search/cvterms","gcmdKeywordThesaurus":"https://earthdata.nasa.gov/earth-observation-data/find-data/idn/gcmd-keywords"},"dataLicenseDescription":null,"dataLicenseUrl":null}