{"xmlId":"2769","NOAAStudyId":"8742","studyName":"Ishiwatari et al. 1999 Japan Sea 30KYr Organic Geochemical Data","doi":"https://doi.org/10.25921/15qr-9578","uuid":"ddeb0b58-993b-4aca-9e95-ba76f64f83ba","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":"Ishiwatari, R.; Yamada, K.; Matsumoto, K.; Houtatsu, M.; Naraoka, H.","investigatorDetails":[{"firstName":"Ryoshi","lastName":"Ishiwatari","initials":"R.","orcId":null},{"firstName":"Keita","lastName":"Yamada","initials":"K.","orcId":null},{"firstName":"Kohei","lastName":"Matsumoto","initials":"K.","orcId":null},{"firstName":null,"lastName":"Houtatsu","initials":"M.","orcId":null},{"firstName":"Hiroshi","lastName":"Naraoka","initials":"H.","orcId":"0000-0002-2373-8759"}],"version":"1.0","funding":[],"studyNotes":null,"onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/8742","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-ocean-8742.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-ocean-8742.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/paleoceanography","studyCode":null,"scienceKeywords":null,"reconstruction":"Y","contributionDate":"2009-11-02","entryId":"noaa-ocean-8742","earliestYearBP":30000,"mostRecentYearBP":0,"earliestYearCE":-28050,"mostRecentYearCE":1950,"publication":[{"author":{"name":"Ishiwatari, R., K. Yamada, K. Matsumoto, M. Houtatsu, and H. Naraoka"},"pubYear":1999,"title":"Organic Molecular and Carbon Isotopic Records of the Japan Sea Over the Past 30 kyr","journal":"Paleoceanography","volume":"14","edition":null,"issue":"2","pages":"260-270","reportNumber":null,"citation":"Ishiwatari, R., K. Yamada, K. Matsumoto, M. Houtatsu, and H. Naraoka. 1999. Organic Molecular and Carbon Isotopic Records of the Japan Sea Over the Past 30 kyr. Paleoceanography, 14(2), 260-270. doi: 10.1029/1998PA900014","type":"publication","identifier":{"type":"doi","id":"10.1029/1998PA900014","url":"http://dx.doi.org/10.1029/1998PA900014"},"abstract":"The organic and isotopic geochemical study of two sediment cores (KH-79-3, L-3, and KH-79-3, C-3) from the Oki Ridge in the Japan Sea has revealed that total organic carbon (TOC) mass accumulation rates are extremely high in the 1211 ka (calendar age) interval and TOC in the sections in the 2417 ka interval is depleted in 13C by 3.50 relative to Holocene sediments. Alkenone sea surface temperature (SST) shows a decrease from 18° to 14°C from 17.5 to 11.6 ka and a sharp increase from 14° to 19°C from 11.6 to 11.1 ka. The SST changes are associated with the inflow of cold seawater with the vertical water mixing and the inflowof warm Tsushima Current into the Japan Sea. The ´13C values for both 24-methylcholesta-5,22-dien-3²-ol (diatom marker) and dinosterol (dinoflagellate marker), are at their minimum from 24 to 17 ka, while those for long-chain alkenones are not. The theoretical considerations on ´13C for biomarkers suggest low photosynthetic carbon demand of diatoms and dinoflagellates from 24 to 17 ka.","pubRank":"1"}],"site":[{"NOAASiteId":"57076","siteName":"KH79-3","siteCode":null,"mappable":"Y","locationName":"Ocean>Pacific Ocean>North Pacific Ocean>Sea Of Japan","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["37.0583","134.71"]},"properties":{"southernmostLatitude":"37.0583","northernmostLatitude":"37.0583","westernmostLongitude":"134.71","easternmostLongitude":"134.71","minElevationMeters":"-935","maxElevationMeters":"-935"}},"paleoData":[{"dataTableName":"Ishiwatari1999","NOAADataTableId":"32634","earliestYear":30000,"mostRecentYear":0,"timeUnit":"cal yr 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