{"NOAAStudyId":"24250","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":"2018-05-27","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-24250.xml","doi":null,"earliestYearBP":10970,"earliestYearCE":-9020,"entryId":"noaa-ocean-24250","funding":[{"fundingAgency":"Japan Society for the Promotion of Science (JSPS)","fundingGrant":"16340158, 19204051"},{"fundingAgency":"Japanese Ministry of Science, Education, Culture and Sports","fundingGrant":"Global Carbon and Related Mapping based on Satellite Imagery (GCMAPS) Program"}],"investigators":"Isono, D.; Yamamoto, M.; Irino, T.; Oba, T.; Murayama, M.; Nakamura, T.; Kawahata, H.","mostRecentYearBP":-40,"mostRecentYearCE":1990,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/24250","originalSource":null,"publication":[{"abstract":"Suborbital climate variability during the last glacial period is suggested to have involved a 1500-year pacing cycle, but the expression and spatial distribution of the ~1500-year oscillation during interglacials remains unclear. We generated a multidecade resolution record of alkenone sea surface temperature (SST) in the northwestern Pacific off central Japan during the Holocene. The SST record showed centennial and millennial variability with an amplitude of ~1C throughout the entire Holocene. Spectral analysis for SST variation revealed a statistically significant peak with 1470-year periodicity. The SST variation partly correlated with the variations of ice-rafted hematite-stained grain content in North Atlantic sediments. These findings indicate that the mean latitude of the Kuroshio Extension has varied on a 1500-year cycle, and suggest that a climatic link exists between the North Pacific gyre system and the high-latitude North Atlantic thermohaline circulation. The regular pacing at 1500-year intervals seen throughout both the Holocene and the last glacial period suggests that the oscillation was a response to external forcing.","author":{"name":"Dai Isono, Masanobu Yamamoto, Tomohisa Irino, Tadamichi Oba, Masafumi Murayama, Toshio Nakamura, Hodaka Kawahata"},"citation":"Dai Isono, Masanobu Yamamoto, Tomohisa Irino, Tadamichi Oba, Masafumi Murayama, Toshio Nakamura, Hodaka Kawahata. 2009. The 1500-year climate oscillation in the midlatitude North Pacific during the Holocene. Geology, 37(7), 591-594. doi: 10.1130/G25667A.1","edition":null,"identifier":{"id":"10.1130/G25667A.1","type":"doi","url":"http://dx.doi.org/10.1130/G25667A.1"},"issue":"7","journal":"Geology","pages":"591-594","pubRank":"1","pubYear":2009,"reportNumber":null,"title":"The 1500-year climate oscillation in the midlatitude North Pacific during the Holocene","type":"publication","volume":"37"}],"reconstruction":"Y","scienceKeywords":["Sea Surface Temperature Reconstruction"],"site":[{"NOAASiteId":"19275","geo":{"geoType":"Feature","geometry":{"coordinates":["36.02","141.78"],"type":"POINT"},"properties":{"easternmostLongitude":"141.78","maxElevationMeters":"-2224","minElevationMeters":"-2224","northernmostLatitude":"36.02","southernmostLatitude":"36.02","westernmostLongitude":"141.78"}},"locationName":"Ocean>Pacific Ocean>North Pacific Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"35934","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>biomarkers"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/isono2009/isono2009.txt","linkText":"North Pacific Holocene Alkenone SST","urlDescription":"NOAA Template File","variables":[{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Character","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"sampling metadata>sample identification"},{"cvAdditionalInfo":"sample midpoint depth","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar kiloyear before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"chemical composition>compound>organic compound>organic compound index>alkenone unsaturation index>alkenone unsaturation index Uk37 prime"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>organic compound index>alkenone unsaturation index","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>sea water temperature>sea surface temperature"}]}],"dataTableName":"Isono2009","dataTableNotes":null,"earliestYear":10970,"earliestYearBP":10970,"earliestYearCE":-9020,"mostRecentYear":-40,"mostRecentYearBP":-40,"mostRecentYearCE":1990,"species":[],"timeUnit":"cal yr BP"}],"siteName":"MD01-2421"}],"studyCode":null,"studyName":"North Pacific Holocene Alkenone Sea Surface Temperature Reconstruction","studyNotes":"Alkenone unsaturation index and sea surface temperature reconstruction for 3 co-located North Pacific sediment cores over the Holocene","version":"1.0","xmlId":"22394"}