{"NOAAStudyId":"6398","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":"2005-07-01","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-6398.xml","doi":null,"earliestYearBP":144000,"earliestYearCE":-142050,"entryId":"noaa-ocean-6398","funding":[],"investigators":"Yamamoto, M.; Suemune, R.; Oba, T.","mostRecentYearBP":316,"mostRecentYearCE":1634,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/6398","originalSource":null,"publication":[{"abstract":"We have generated a high-resolution record of alkenone sea surface temperature (SST) between 10ŋ24 ka from Core MD01-2421 off central Japan, in the northwestern Pacific. The cooling by 5°C from 21 ka to 12.8 ka implies the equatorward shift of the subarctic boundary in the northwestern Pacific by ~2.8° in latitude. This shift was a result of the stronger summer Okhotsk High. The Okhotsk High was likely enhanced by the combined effects of El Niņo-like conditions in the tropical Pacific and the heating of the land surface of northeastern Siberia.","author":null,"citation":"Yamamoto, M., R. Suemune, and T. Oba. 2005. Equatorward shift of the subarctic boundary in the northwestern Pacific during the last deglaciation. Geophys. Res. Lett., Vol. 32, L05609.","edition":null,"identifier":null,"issue":null,"journal":"Geophysical Research Letters","pages":null,"pubRank":"1","pubYear":2005,"reportNumber":null,"title":"Equatorward shift of the subarctic boundary in the northwestern Pacific during the last deglaciation","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":null,"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":"9541","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>age control"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/yamamoto2005","linkText":"yamamoto2005","urlDescription":"Original Data and Full Metadata","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>paleocean>age control"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/m2421-y-tab.txt","linkText":"m2421-y-tab.txt","urlDescription":"Alternate Format Data","variables":[{"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"},{"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":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":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"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"}]}],"dataTableName":"M2421-Y","dataTableNotes":"The analysis of alkenones and the calculation of temperature were conducted following the methods of Yamamoto et al. [2000] and Prahl et al. [1988], respectively, with an analytical accuracy of 0.24°C. Please see Oba et al. (2006) for age-depth model. ","earliestYear":144000,"earliestYearBP":144000,"earliestYearCE":-142050,"mostRecentYear":240,"mostRecentYearBP":316,"mostRecentYearCE":1634,"species":[],"timeUnit":"14C yr BP"}],"siteName":"MD01-2421"}],"studyCode":null,"studyName":"Northwestern Pacific 144KYr Alkenone Sea Surface Temperature Estimates.","studyNotes":null,"version":"1.0","xmlId":"2418"}