{"xmlId":"10977","NOAAStudyId":"12911","studyName":"Subpolar North Atlantic 4500 Year Alkenone SST Reconstructions","doi":"https://doi.org/10.25921/f5ph-ax07","uuid":"8c30272c-ea58-4e2e-9a42-70242af77bc5","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":"Sicre, M.-A.; Yiou, P.; Eiríksson, J.; Ezat, U.; Guimbaut, E.; Dahhaoui, I.; Knudsen, K.L.; Jansen, E.; Turon, J.-L.","investigatorDetails":[{"firstName":"Marie-Alexandrine","lastName":"Sicre","initials":"M.-A.","orcId":"0000-0002-5015-1400"},{"firstName":"Pascal","lastName":"Yiou","initials":"P.","orcId":null},{"firstName":"Jón","lastName":"Eiríksson","initials":"J.","orcId":"0000-0001-5598-2417"},{"firstName":"Ullah","lastName":"Ezat","initials":"U.","orcId":null},{"firstName":"Elwrick","lastName":"Guimbaut","initials":"E.","orcId":null},{"firstName":"Imane","lastName":"Dahhaoui","initials":"I.","orcId":null},{"firstName":"Karen-Luise","lastName":"Knudsen","initials":"K.L.","orcId":"0000-0002-4006-3618"},{"firstName":"Eystein","lastName":"Jansen","initials":"E.","orcId":null},{"firstName":"Jean-Louis","lastName":"Turon","initials":"J.-L.","orcId":null}],"version":"1.0","funding":[{"fundingAgency":"European Union","fundingGrant":"EVK2-2002-00143"},{"fundingAgency":"European Commission MILLENNIUM Integrated Project","fundingGrant":"EVK-CT-2006-017008"},{"fundingAgency":"French National Centre for Scientific Research (CNRS)","fundingGrant":"LEFE Program, Institut National de lUnivers"}],"studyNotes":"A 4500 year long reconstruction of sea surface temperature (SST) obtained from alkenone paleothermometry from the MD99-2275 site, North of Iceland. This record combines data from Sicre et al., QSR 2008 and Sicre et al., Paleoceanography 2011. The latter extend the record to the most recent part of the record that was missing in the 2008 data set. Overall, this spliced record combines three sediment sequence reconstructions with different coring devices (piston, gravity and box) in a highly variable region thus represents a unique regional reconstruction benchmark.  \r\n\r\nMD99-2275:  66°33'N, 17°42'W, 470 m water depth","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/12911","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-ocean-12911.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-ocean-12911.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/paleoceanography","studyCode":null,"scienceKeywords":["Meridional Overturning Circulation (MOC)","Sea Surface Temperature Reconstruction"],"reconstruction":"Y","contributionDate":"2012-05-17","entryId":"noaa-ocean-12911","earliestYearBP":4499,"mostRecentYearBP":-51,"earliestYearCE":-2549,"mostRecentYearCE":2001,"publication":[{"author":{"name":"Sicre, M.-A., P. Yiou, J. Eiríksson, U. Ezat, E. Guimbaut, I. Dahhaoui,  K. L. Knudsen, E. Jansen, and J.-L. Turon"},"pubYear":2008,"title":"A 4500-year reconstruction of sea surface temperature  variability at decadal time scales off North Iceland","journal":"Quaternary Science Reviews","volume":"27","edition":null,"issue":"21-22","pages":"2041-2047","reportNumber":null,"citation":"Sicre, M.-A., P. Yiou, J. Eiríksson, U. Ezat, E. Guimbaut, I. Dahhaoui,  K. L. Knudsen, E. Jansen, and J.-L. Turon. 2008. A 4500-year reconstruction of sea surface temperature  variability at decadal time scales off North Iceland. Quaternary Science Reviews, 27(21-22), 2041-2047. doi: 10.1016/j.quascirev.2008.08.009","type":"publication","identifier":{"type":"doi","id":"10.1016/j.quascirev.2008.08.009","url":"http://dx.doi.org/10.1016/j.quascirev.2008.08.009"},"abstract":"Marine paleo-records acquired at high temporal resolution provide critical data for testing numerical climate models and help to understand processes underlying ocean variability. This study presents a unique 4500-year reconstruction of sea surface temperature (SST) obtained from alkenones in the North Atlantic Polar Front area off North Iceland, at an average temporal resolution of 4-5 years. Spectral analysis of this signal shows dominant multidecadal oscillations which occurred with a stronger amplitude between 2500 and 4200 years BP, hand in hand with fluctuations of bottom currents indicated by paleomagnetic proxies. Contemporaneous large excursions of the Inter-tropical Convergence Zone (ITCZ) are also recorded by the distant Cariaco titanium time series, suggesting a link with low latitude Atlantic climate. We speculate that the oscillations reflect changes of the Meridional Overturning Circulation (MOC) induced by increased ENSO activity.","pubRank":"1"}],"site":[{"NOAASiteId":"52581","siteName":"MD99-2275","siteCode":null,"mappable":"Y","locationName":"Ocean>Atlantic Ocean>North Atlantic Ocean","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["66.551","-17.699"]},"properties":{"southernmostLatitude":"66.551","northernmostLatitude":"66.551","westernmostLongitude":"-17.699","easternmostLongitude":"-17.699","minElevationMeters":"-470","maxElevationMeters":"-470"}},"paleoData":[{"dataTableName":"MD99-2275Sicre","NOAADataTableId":"21254","earliestYear":4499,"mostRecentYear":-51,"timeUnit":"cal yr BP","earliestYearBP":4499,"mostRecentYearBP":-51,"earliestYearCE":-2549,"mostRecentYearCE":2001,"coreLengthMeters":null,"dataTableNotes":"Sicre et al. 2008/2011 MD99-2275 Alkenone SST update after splicing","species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/sicre2008/sicre2008-noaa.txt","urlDescription":"NOAA Template File","linkText":"Sea Surface Temperature Reconstruction","variables":[{"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>age unit>calendar year before present","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"age_calBP"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>age unit>year Common Era","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"age_CE"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvWhat":"earth system variable>temperature variable>temperature>sea water temperature>sea surface temperature","cvMaterial":"reconstruction material>organic compound index>alkenone unsaturation index","cvError":null,"cvUnit":"temperature unit>degree Celsius","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"SST_uk37"}],"NOAAKeywords":["earth science>paleoclimate>paleocean>reconstruction","earth science>paleoclimate>paleocean>biomarkers"]}]}]}],"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}