{"NOAAStudyId":"2570","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":"2001-10-01","dataPublisher":"NOAA","dataType":"PALEOCEANOGRAPHY","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/paleoceanography","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-ocean-2570.xml","doi":null,"earliestYearBP":200500,"earliestYearCE":-198550,"entryId":"noaa-ocean-2570","funding":[],"investigators":"de Garidel-Thoron, T.; Beaufort, L.; Linsley, B.K.; Dannenmann, S.","mostRecentYearBP":4846,"mostRecentYearCE":-2896,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/2570","originalSource":null,"publication":[{"abstract":"The primary productivity dynamics of the last 200,000 years in the Sulu Sea was reconstructed using the abundance of the coccolithophore Florisphaera profunda in the IMAGES MD97-2141 core. We find that primary productivity was enhanced during glacial periods, which we suggest is due to a stronger East Asian winter monsoon. During the last 80 kyr, eight significant increases in primary productivity (PP) in the Sulu Sea are similar to East Asian winter monsoon changes recorded in Chinese loess. The PP maxima are not linked with Heinrich events (HE) in the North Atlantic, although four PP peaks are synchronous with HE. The PP oscillations have frequencies near those of the Dansgaard--Oeschger cycles in Northern Hemisphere ice records and indicate a teleconnection of the East Asian winter monsoon with Greenland climate. In this Sulu Sea record the East Asian winter monsoon oscillates with periodicities of ~6, 4.2--3.4, 2.3, and 1.5 kyr. In particular, the 1.5 kyr cycle exhibits a strong and pervasive signal from stage 6 to the Holocene without any ice volume modulation. This stationarity suggests that the 1.5 kyr cycle is not driven by some high-latitude forcing.","author":null,"citation":"de Garidel-Thoron, T., L. Beaufort, B.K. Linsley, and S. Dannenmann. 2001. Millenial-scale dynamics of the East Asian winter monsoon during the last 200,000 years. Paleoceanography 16(5):491-503.","edition":null,"identifier":null,"issue":null,"journal":"Paleoceanography","pages":null,"pubRank":"1","pubYear":2001,"reportNumber":null,"title":"Millenial-scale dynamics of the East Asian winter monsoon during the last 200,000 years","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":null,"site":[{"NOAASiteId":"19168","geo":{"geoType":"Feature","geometry":{"coordinates":["8.78","121.28"],"type":"POINT"},"properties":{"easternmostLongitude":"121.28","maxElevationMeters":"-3633","minElevationMeters":"-3633","northernmostLatitude":"8.78","southernmostLatitude":"8.78","westernmostLongitude":"121.28"}},"locationName":"Ocean>Pacific Ocean>North Pacific Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"4185","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>reconstruction","earth science>paleoclimate>paleocean>age control","earth science>paleoclimate>paleocean>population abundance"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/md972141-tab.txt","linkText":"md972141-tab.txt","urlDescription":"Alternate Format Data","variables":[{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":"reconstructed from the abundance of coccolithophore Florisphaera profunda","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>isotope ratio>delta 18O","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"gram per square meter per year","cvWhat":"earth system variable>ecosystem variable>ecosystem process>productivity>primary productivity"},{"cvAdditionalInfo":"reconstructed from the abundance of coccolithophore Florisphaera profunda","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>element or compound ratio>magnesium/calcium","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"gram per square meter per year","cvWhat":"earth system variable>ecosystem variable>ecosystem process>productivity>primary productivity"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":"Florisphaera profunda percent relative to the other coccoliths","cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"biological material>organism>coccolithophore>identified coccolithophore"}]},{"NOAAKeywords":["earth science>paleoclimate>paleocean>age control","earth science>paleoclimate>paleocean>population abundance","earth science>paleoclimate>paleocean>reconstruction"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/degaridel-thoron2001/","linkText":"Data File and Readme","urlDescription":"Data Folder","variables":[]}],"dataTableName":"MD972141","dataTableNotes":null,"earliestYear":200500,"earliestYearBP":200500,"earliestYearCE":-198550,"mostRecentYear":4290,"mostRecentYearBP":4846,"mostRecentYearCE":-2896,"species":[],"timeUnit":"14C yr BP"}],"siteName":"MD97-2141"}],"studyCode":null,"studyName":"Pacific Pleistocene Primary Production Data ","studyNotes":null,"version":"1.0","xmlId":"1570"}