{"NOAAStudyId":"21730","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":"2017-03-24","dataPublisher":"NOAA","dataType":"SPELEOTHEMS","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/speleothem","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-cave-21730.xml","doi":null,"earliestYearBP":9745,"earliestYearCE":-7795,"entryId":"noaa-cave-21730","funding":[{"fundingAgency":"Spanish Ministerio de Ciencia e Innovación","fundingGrant":"REN2001-1409CLI, CGL2004-1866/BTE"}],"investigators":"Domínguez-Villar, D.; Wang, X.; Krklec, K.; Cheng, H.; Edwards, R.L.","mostRecentYearBP":304,"mostRecentYearCE":1646,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/21730","originalSource":null,"publication":[{"abstract":"Changes in ocean dynamics in the northern North Atlantic affect the thermohaline circulation that controls global climate. During glacial and deglaciation periods these dynamics are enhanced due to large variations in the surface ocean density caused by changes in glacier volumes. During full interglacial conditions, the dominant role of the northern North Atlantic on global climate is limited due to the reduced discharge of freshwater to the ocean, causing other regional dynamics to gain importance. Here we present a speleothem d18O record from the Iberian Peninsula that supports that the northern North Atlantic and tropical North Atlantic were both source regions of millennial climate oscillations during the Holocene. The speleothem d18O signal records millennial time-scale changes in the hydrological cycle as a result of persistent anomalies of the Gulf Stream-North Atlantic Current dynamics. In addition, the speleothem d18O record shows synchronous variability with records from the eastern Pacific region though the entire Holocene, whereas records from western Pacific region have limited or no correlation beyond periods of major instability of the northern North Atlantic. The discontinuous climate connection among the studied records is the result of different mechanisms affecting the climate system that originated in distant regions. We suggest that two regions, the tropical North Atlantic and northern North Atlantic, alternate their dominance as source regions causing millennial climate anomalies in large planetary regions. The duration of these persistent climate changes and the extension of the regions affected depend on the region triggering the anomaly because different mechanisms affecting the climate system are involved. ","author":{"name":"David Dominguez-Villar, Xianfeng Wang, Kristina Krklec, Hai Cheng, and R. Lawrence Edwards "},"citation":"David Dominguez-Villar, Xianfeng Wang, Kristina Krklec, Hai Cheng, and R. Lawrence Edwards. 2017. The control of the tropical North Atlantic on Holocene millennial climate oscillations. Geology, 45(4), 303-306. doi: 10.1130/G38573.1","edition":null,"identifier":{"id":"10.1130/G38573.1","type":"doi","url":"http://dx.doi.org/10.1130/G38573.1"},"issue":"4","journal":"Geology","pages":"303-306","pubRank":"1","pubYear":2017,"reportNumber":null,"title":"The control of the tropical North Atlantic on Holocene millennial climate oscillations","type":"publication","volume":"45"}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"52399","geo":{"geoType":"Feature","geometry":{"coordinates":["43.04","-3.6597"],"type":"POINT"},"properties":{"easternmostLongitude":"-3.6597","maxElevationMeters":"860","minElevationMeters":"860","northernmostLatitude":"43.04","southernmostLatitude":"43.04","westernmostLongitude":"-3.6597"}},"locationName":"Continent>Europe>Southern Europe>Spain","mappable":"Y","paleoData":[{"NOAADataTableId":"32764","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/spain/kaite2017d18o.txt","linkText":"Kaite Cave Composite Holocene Ice-Volume Corrected d18O Data ","urlDescription":"Formatted Text Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","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":"SPELEOTHEMS","cvDetail":null,"cvError":"unspecified margin of error","cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year","cvWhat":"age variable>age"},{"cvAdditionalInfo":"corrected for ice volume; composite of 4 cores","cvDataType":"SPELEOTHEMS","cvDetail":"corrected","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":"corrected for ice volume; composite of 4 cores","cvDataType":"SPELEOTHEMS","cvDetail":"composited","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"Kaite2017d18O","dataTableNotes":"data gap between 6315.1 and 6580.5 yr. BP","earliestYear":9745,"earliestYearBP":9745,"earliestYearCE":-7795,"mostRecentYear":304,"mostRecentYearBP":304,"mostRecentYearCE":1646,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Kaite Cave"}],"studyCode":null,"studyName":"Kaite Cave, Spain Holocene Oxygen Isotope Data","studyNotes":"Composite Holocene speleothem oxygen isotope (d18O) data, based on 4 speleothems from Kaite Cave, Cantabrian Range, northern Spain, corrected for ice-volume effect.","version":"1.0","xmlId":"19668"}