{"xmlId":"20703","NOAAStudyId":"22544","studyName":"Gulf of Aden 200,000 Year Stable Isotope and Alkenone SST Data","doi":"https://doi.org/10.25921/k92a-8583","uuid":"aed09410-7596-427b-a58e-ec2f5d6a0f9c","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":"Tierney, J.E.; deMenocal, P.B.; Zander, P.D.","investigatorDetails":[{"firstName":"Jessica","lastName":"Tierney","initials":"J.E.","orcId":"0000-0002-9080-9289"},{"firstName":"Peter","lastName":"deMenocal","initials":"P.B.","orcId":"0000-0002-7191-717X"},{"firstName":"Paul","lastName":"Zander","initials":"P.D.","orcId":"0000-0001-7340-4768"}],"version":"1.0","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"OCE-1203892"}],"studyNotes":"Stable isotope (dD, d18O, d13C) data and alkenone SST from sediments collected in Gulf of Aden sediment core RC09-166 for the past 200,000 years.","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/22544","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-ocean-22544.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-ocean-22544.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/paleoceanography","studyCode":null,"scienceKeywords":["Sea Surface Temperature Reconstruction"],"reconstruction":"Y","contributionDate":"2017-10-03","entryId":"noaa-ocean-22544","earliestYearBP":212041,"mostRecentYearBP":1884,"earliestYearCE":-210091,"mostRecentYearCE":66,"publication":[{"author":{"name":"Jessica E. Tierney, Peter B. deMenocal, Paul D. Zander"},"pubYear":2017,"title":"A climatic context for the out-of-Africa migration","journal":"Geology","volume":"45","edition":null,"issue":"11","pages":"1023-1026","reportNumber":null,"citation":"Jessica E. Tierney, Peter B. deMenocal, Paul D. Zander. 2017. A climatic context for the out-of-Africa migration. Geology, 45(11), 1023-1026. doi: 10.1130/G39457.1","type":"publication","identifier":{"type":"doi","id":"10.1130/G39457.1","url":"http://dx.doi.org/10.1130/G39457.1"},"abstract":"Around 200,000 yr ago, Homo sapiens emerged in Africa. By 40 ka, Homo sapiens had spread throughout Eurasia, and a major competing species, the Neanderthals, became extinct. The factors that drove our species \"out of Africa\" remain a topic of vigorous debate. Existing research invokes climate change as either providing opportunities or imposing limits on human migration. Yet the paleoclimate history of northeast Africa, the gateway to migration, is unknown. Here, we reconstruct temperature and aridity in the Horn of Africa region spanning the past 200,000 yr. Our data suggest that warm and wet conditions from 120,000 to 90,000 yr ago could have facilitated early waves of human migration toward the Levant and Arabia, as supported by fossil and lithic evidence. However, the primary out-of-Africa event, as constrained by genetic studies (ca. 65-55 ka), occurred during a cold and dry time. This complicates the climate-migration relationship, suggesting that both \"push\" and \"pull\" factors may have prompted Homo sapiens to colonize Eurasia.","pubRank":"1"}],"site":[{"NOAASiteId":"57404","siteName":"RC09-166","siteCode":null,"mappable":"Y","locationName":"Ocean>Indian Ocean>Arabian Sea","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["12.15","44.4"]},"properties":{"southernmostLatitude":"12.15","northernmostLatitude":"12.15","westernmostLongitude":"44.4","easternmostLongitude":"44.4","minElevationMeters":"-738","maxElevationMeters":"-738"}},"paleoData":[{"dataTableName":"Tierney2017b","NOAADataTableId":"33642","earliestYear":212041,"mostRecentYear":1884,"timeUnit":"cal yr 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