{"NOAAStudyId":"2571","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":"2002-07-01","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-2571.xml","doi":null,"earliestYearBP":7040,"earliestYearCE":-5090,"entryId":"noaa-ocean-2571","funding":[],"investigators":"Lamy, F.; Rühlemann, C.; Hebbeln, D.; Wefer, G.","mostRecentYearBP":0,"mostRecentYearCE":1950,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/2571","originalSource":null,"publication":[{"abstract":"We reconstructed changes of temperature, salinity, and productivity within the southern Peru-Chile Current during the last 8000 years from a high-resolution sediment core recovered at 41°S using alkenones, isotope ratios of planktic foraminifera, biogenic opal, and organic carbon. Paleotemperatures and paleosalinities reached maximum values at ~5500 years ago and thereafter declined to modern values, whereas paleoproductivity continuously increased throughout the last 8000 years. We ascribe these long-term Holocene trends primarily to latitudinal shifts of the Antarctic Circumpolar Current (ACC). The concurrence with shifts in the position of the Southern Westerlies points to a common response of atmospheric and oceanographic circulation patterns off southern Chile. Millennial- to centennial-scale fluctuations of paleotemperatures and paleosalinities, on the other hand, lag displacements in the position of the Southern Westerlies but reveal a significant correlation to short-term temperature changes in Antarctica, indicating a high-latitude control of the ACC at these timescales.","author":null,"citation":"Lamy, F., C. Rühlemann, D. Hebbeln, and G. Wefer. 2002. High- and low-latitude climate control on the position of the southern Peru-Chile Current during the Holocene. Paleoceanography 17(2):1028.","edition":null,"identifier":null,"issue":null,"journal":"Paleoceanography","pages":null,"pubRank":"1","pubYear":2002,"reportNumber":null,"title":"High- and low-latitude climate control on the position of the southern Peru-Chile Current during the Holocene","type":"publication","volume":null},{"abstract":null,"author":null,"citation":"Lamy, F., D. Hebbeln, U. Röhl, and G. Wefer. 2001. Holocene rainfall variability in southern Chile: a marine record of latitudinal shifts of the Southern Westerlies. Earth and Planetary Science Letters 185(3-4):369-382.","edition":null,"identifier":null,"issue":null,"journal":"Earth and Planetary Science Letters","pages":null,"pubRank":"2","pubYear":2001,"reportNumber":null,"title":"Holocene rainfall variability in southern Chile: a marine record of latitudinal shifts of the Southern Westerlies","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":["Sea Surface Temperature Reconstruction"],"site":[{"NOAASiteId":"19169","geo":{"geoType":"Feature","geometry":{"coordinates":["-41","-74.45"],"type":"POINT"},"properties":{"easternmostLongitude":"-74.45","maxElevationMeters":"-852","minElevationMeters":"-852","northernmostLatitude":"-41","southernmostLatitude":"-41","westernmostLongitude":"-74.45"}},"locationName":"Ocean>Pacific Ocean>South Pacific Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"4186","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>reconstruction","earth 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carbon"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"count per second","cvWhat":"chemical composition>element or single-element molecule>iron"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>foraminifer>planktic foraminifer>Neogloboquadrina sp.>Neogloboquadrina pachyderma>Neogloboquadrina pachyderma dextral","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"GeoB 3313-1","dataTableNotes":"Reconstructed changes of paleotemperature, -salinity, and -productivity within the southern Peru-Chile Current during the last 8,000 years from a high-resolution sediment core recovered at 41°S using alkenones, isotope ratios of planktic foraminifera, biogenic opal, and organic carbon. Fe and chronologic data previously published in Lamy et al, 2001.","earliestYear":6170,"earliestYearBP":7040,"earliestYearCE":-5090,"mostRecentYear":195,"mostRecentYearBP":0,"mostRecentYearCE":1950,"species":[],"timeUnit":"14C yr BP"}],"siteName":"GeoB 3313-1"}],"studyCode":null,"studyName":"Southeast Pacific SST Reconstruction","studyNotes":"","version":"1.0","xmlId":"1571"}