{"NOAAStudyId":"6375","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":"2006-11-01","dataPublisher":"NOAA","dataType":"CLIMATE RECONSTRUCTIONS","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/climate-reconstruction","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-recon-6375.xml","doi":null,"earliestYearBP":51930,"earliestYearCE":-49980,"entryId":"noaa-recon-6375","funding":[],"investigators":"Cacho, I.; Grimalt, J.O.; Pelejero, C.; Canals, M.; Sierro, F.J.; Flores, J.A.; Shackleton, N.J.","mostRecentYearBP":1008,"mostRecentYearCE":942,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/6375","originalSource":null,"publication":[{"abstract":"Past sea surface temperature (SST) evolution in the Alboran Sea (western Mediterranean) during the last 50,000 years has been inferred from the study of C37 alkenones in International Marine Global Change Studies MD952043 core. This record has a time resolution of ∼200 years allowing the study of millennial-scale and even shorter climatic changes. The observed SST curve displays characteristic sequences of extremely rapid warming and cooling events along the glacial period. Comparison of this Alboran record with δ18O from Greenland ice (Greenland Ice Sheet Project 2 core) shows a strong parallelism between these SST oscillations and the Dansgaard-Oeschger events. Five prominent cooling episodes standing out in the SST profile are accompanied by an anomalous high abundance of Neogloboquadrina pachyderma sinistral which is confined to the duration of these cold intervals. These features and the isotopic record reflect drastic changes in the surface hydrography of the Alboran Sea in association with Heinrich events Hl–5.","author":null,"citation":"Cacho, I., J. O. Grimalt, C. Pelejero, M. Canals, F. J. Sierro, J. A. Flores, and N. Shackleton. 1999. Dansgaard-Oeschger and Heinrich event imprints in Alboran Sea paleotemperatures. Paleoceanography, 14(6), 698–705. doi: 10.1029/1999PA900044.\r\n","edition":null,"identifier":{"id":"10.1029/1999PA900044","type":"doi","url":"http://dx.doi.org/10.1029/1999PA900044"},"issue":null,"journal":"Paleoceanography","pages":null,"pubRank":"1","pubYear":1999,"reportNumber":null,"title":"Dansgaard-Oeschger and Heinrich event imprints in Alboran Sea paleotemperatures","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":["Sea Surface Temperature Reconstruction"],"site":[{"NOAASiteId":"52223","geo":{"geoType":"Feature","geometry":{"coordinates":["36.14333","-2.62167"],"type":"POINT"},"properties":{"easternmostLongitude":"-2.62167","maxElevationMeters":"-1841","minElevationMeters":"-1841","northernmostLatitude":"36.14333","southernmostLatitude":"36.14333","westernmostLongitude":"-2.62167"}},"locationName":"Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"19930","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>reconstructions>sea surface temperature"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/cacho1999/cacho1999.txt","linkText":"cacho1999.txt","urlDescription":"Original Data and Full Metadata","variables":[{"cvAdditionalInfo":"calibration data set: Muller et al. 1998","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>organic compound index>alkenone unsaturation index","cvMethod":null,"cvSeasonality":"annual","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":"gas chromatography","cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"chemical composition>compound>organic compound>organic compound index>alkenone unsaturation index>alkenone unsaturation index Uk37 prime"},{"cvAdditionalInfo":"size fraction: 300-355 micron","cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>foraminifer>planktic foraminifer>Globigerina sp.>Globigerina bulloides","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":"size fraction: 63-150 micron","cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"percent","cvWhat":"biological material>organism>foraminifer>identified foraminifer>Neogloboquadrina pachyderma>Neogloboquadrina pachyderma sinistral"},{"cvAdditionalInfo":null,"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"}]},{"NOAAKeywords":["earth science>paleoclimate>reconstructions>sea surface temperature"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/md952043-tab.txt","linkText":"md952043-tab.txt","urlDescription":"Alternate Format Data","variables":[]}],"dataTableName":"MD95-2043","dataTableNotes":null,"earliestYear":51930,"earliestYearBP":51930,"earliestYearCE":-49980,"mostRecentYear":1008,"mostRecentYearBP":1008,"mostRecentYearCE":942,"species":[],"timeUnit":"cal yr BP"}],"siteName":"MD95-2043"}],"studyCode":null,"studyName":"Cacho et al. 1999 Alboran Sea MD95-2043 Uk37 Data and SST Reconstructions","studyNotes":"SST calculated as  Uk37 = 0.033SST + 0.044 ","version":"1.0","xmlId":"2965"}