{"NOAAStudyId":"5943","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":"2006-08-01","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-5943.xml","doi":null,"earliestYearBP":23491,"earliestYearCE":-21541,"entryId":"noaa-ocean-5943","funding":[],"investigators":"Benway, H.M.; Mix, A.C.; Haley, B.A.; Klinkhammer, G.P.","mostRecentYearBP":492,"mostRecentYearCE":1458,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/5943","originalSource":null,"publication":[{"abstract":"Multiproxy geologic records of δ18O and Mg/Ca in fossil foraminifera from sediments under the Eastern Pacific Warm Pool (EPWP) region west of Central America document variations in upper ocean temperature, pycnocline strength, and salinity (i.e., net precipitation) over the past 30 kyr. Although evident in the paleotemperature record, there is no glacial-interglacial difference in paleosalinity, suggesting that tropical hydrologic changes do not respond passively to high-latitude ice sheets and oceans. Millennial variations in paleosalinity with amplitudes as high as ~4 practical salinity units occur with a dominant period of ~3-5 ky during the glacial/deglacial interval and ~1.0-1.5 ky during the Holocene. The amplitude of the EPWP paleosalinity changes greatly exceeds that of published Caribbean and western tropical Pacific paleosalinity records. EPWP paleosalinity changes correspond to millennial-scale climate changes in the surface and deep Atlantic and the high northern latitudes, with generally higher (lower) paleosalinity during cold (warm) events. In addition to Intertropical Convergence Zone (ITCZ) dynamics, which play an important role in tropical hydrologic variability, changes in Atlantic-Pacific moisture transport, which is closely linked to ITCZ dynamics, may also contribute to hydrologic variations in the EPWP. Calculations of interbasin salinity average and interbasin salinity contrast between the EPWP and the Caribbean help differentiate long-term changes in mean ITCZ position and Atlantic-Pacific moisture transport, respectively. ","author":null,"citation":"Benway, H.M., A.C. Mix, B.A. Haley, and G.P. Klinkhammer. 2006. Eastern Pacific Warm Pool paleosalinity and climate variability: 0–30 kyr. Paleoceanography, 21, PA3008. 10.1029/2005PA001208.","edition":null,"identifier":{"id":"10.1029/2005PA001208","type":"doi","url":"http://dx.doi.org/10.1029/2005PA001208"},"issue":null,"journal":"Paleoceanography","pages":null,"pubRank":"1","pubYear":2006,"reportNumber":null,"title":"Eastern Pacific Warm Pool paleosalinity and climate variability: 0-30 kyr","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":null,"site":[{"NOAASiteId":"52403","geo":{"geoType":"Feature","geometry":{"coordinates":["7.85583","-83.60833"],"type":"POINT"},"properties":{"easternmostLongitude":"-83.60833","maxElevationMeters":"-1368","minElevationMeters":"-1368","northernmostLatitude":"7.85583","southernmostLatitude":"7.85583","westernmostLongitude":"-83.60833"}},"locationName":"Ocean>Pacific Ocean>Eastern Pacific Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"20697","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>reconstruction","earth science>paleoclimate>paleocean>age control","earth science>paleoclimate>paleocean>oxygen isotopes","earth science>paleoclimate>paleocean>trace metals in carbonates","earth science>paleoclimate>paleocean>biomarkers"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/benway2006/benway2006.txt","linkText":"benway2006.txt","urlDescription":"Original Data and Full Metadata","variables":[{"cvAdditionalInfo":"core top sediment; Globigerinoides ruber; Anand et al. 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