{"NOAAStudyId":"14588","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":"2013-06-19","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-14588.xml","doi":null,"earliestYearBP":109200,"earliestYearCE":-107250,"entryId":"noaa-ocean-14588","funding":[],"investigators":"Deplazes, G.; Lückge, A.; Peterson, L.C.; Timmermann, A.; Hamann, Y.; Hughen, K.A.; Röhl, U.; Laj, C.; Cane, M.A.; Sigman, D.M.; Haug, G.H.","mostRecentYearBP":1740,"mostRecentYearCE":210,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/14588","originalSource":null,"publication":[{"abstract":"During the last glacial period, the North Atlantic region experienced pronounced, millennial-scale alternations between cold, stadial conditions and milder interstadial conditions—commonly referred to as Dansgaard-Oeschger oscillations - as well as periods of massive iceberg discharge known as Heinrich events. Changes in Northern Hemisphere temperature, as recorded in Greenland, are thought to have affected the location of the Atlantic inter tropical convergence zone and the strength of the Indian summer monsoon. Here we use high-resolution records of sediment color - a measure of terrigenous versus biogenic content - from the Cariaco Basin off the coast of Venezuela and the Arabian Sea to assess teleconnections with the North Atlantic climate system during the last glacial period. The Cariaco record indicates that the intertropical convergence zone migrated seasonally over the site during mild stadial conditions, but was permanently displaced south of the basin during peak stadials and Heinrich events. In the Arabian Sea, we find evidence of a weak Indian summer monsoon during the stadial events. The tropical records show a more variable response to North Atlantic cooling than the Greenland temperature records. We therefore suggest that Greenland climate is especially sensitive to variations in the North Atlantic system - in particular sea-ice extent - whereas the intertropical convergence zone and Indian monsoon system respond primarily to variations in mean Northern Hemisphere temperature.","author":null,"citation":"Deplazes, G., Lückge, A., Peterson, L.C., Timmermann, A., Hamann, Y., Hughen, K.A., Röhl, U., Laj, C., Cane, M.A., Sigman, D.M. and Haug, G.H. 2013. Links between tropical rainfall and North Atlantic climate during the last glacial period. Nature Geoscience, 6, 213-217. DOI: 10.1038/ngeo1712.","edition":null,"identifier":{"id":"10.1038/ngeo1712","type":"doi","url":"http://dx.doi.org/10.1038/ngeo1712"},"issue":null,"journal":"Nature Geoscience","pages":null,"pubRank":"1","pubYear":2013,"reportNumber":null,"title":"Links between tropical rainfall and North Atlantic climate during the last glacial period","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["Dansgaard-Oeschger cycles","Intertropical Convergence Zone (ITCZ)"],"site":[{"NOAASiteId":"55029","geo":{"geoType":"Feature","geometry":{"coordinates":["10.67817","-64.9715"],"type":"POINT"},"properties":{"easternmostLongitude":"-64.9715","maxElevationMeters":"-847","minElevationMeters":"-847","northernmostLatitude":"10.67817","southernmostLatitude":"10.67817","westernmostLongitude":"-64.9715"}},"locationName":"Ocean>Atlantic Ocean>North Atlantic Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"24636","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>physical properties"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/deplazes2013/deplazes2013-cariaco.txt","linkText":"deplazes2013-cariaco.txt","urlDescription":"Original Data and Full Metadata","variables":[{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"meter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":"corrected","cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"meter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","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":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"electromagnetic property>reflectance"}]},{"NOAAKeywords":["earth science>paleoclimate>paleocean>physical properties"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/deplazes2013/MD03-2621_SedimentImages_Reflectance.pdf","linkText":"MD03-2621_SedimentImages_Reflectance.pdf","urlDescription":"Original Data and Full Metadata","variables":[]}],"dataTableName":"MD03-2621-Reflectance13","dataTableNotes":null,"earliestYear":109200,"earliestYearBP":109200,"earliestYearCE":-107250,"mostRecentYear":6400,"mostRecentYearBP":6400,"mostRecentYearCE":-4450,"species":[],"timeUnit":"cal yr BP"}],"siteName":"MD03-2621"},{"NOAASiteId":"55030","geo":{"geoType":"Feature","geometry":{"coordinates":["23.12233","66.49722"],"type":"POINT"},"properties":{"easternmostLongitude":"66.49722","maxElevationMeters":"-571","minElevationMeters":"-571","northernmostLatitude":"23.12233","southernmostLatitude":"23.12233","westernmostLongitude":"66.49722"}},"locationName":"Ocean>Indian Ocean>Arabian Sea","mappable":"Y","paleoData":[{"NOAADataTableId":"24635","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>physical properties"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/deplazes2013/deplazes2013-arabian.txt","linkText":"deplazes2013-arabian.txt","urlDescription":"Original Data and Full Metadata","variables":[{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"meter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","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":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"electromagnetic property>reflectance"}]},{"NOAAKeywords":["earth science>paleoclimate>paleocean>physical properties"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/deplazes2013/SO130-289KL_SedimentImages_Reflectance.pdf","linkText":"SO130-289KL_SedimentImages_Reflectance.pdf","urlDescription":"Original Data and Full Metadata","variables":[]}],"dataTableName":"SO130-289KL-Reflectance13","dataTableNotes":null,"earliestYear":79472,"earliestYearBP":79472,"earliestYearCE":-77522,"mostRecentYear":1740,"mostRecentYearBP":1740,"mostRecentYearCE":210,"species":[],"timeUnit":"cal yr BP"}],"siteName":"SO130-289KL"}],"studyCode":null,"studyName":"Cariaco Basin and Arabian Sea Sediment Reflectance Data Over the Last 100,000 Years","studyNotes":"Sediment total reflectance, L*, was measured in transects from digital images of the sediment surface with a down-core resolution of ~70 μm (143- 146 pixels/cm). The age model is based on cross-correlation to 14C-dated cores from the same region and by correlating the L* records to the ice-core d18O record of NGRIP using the extended GICC05 age scale.","version":"1.0","xmlId":"12569"}