{"xmlId":"2642","NOAAStudyId":"5874","studyName":"Mudelsee and Raymo 2005 Pliocene Northern Hemisphere Glaciation Marine Proxy Data","doi":"https://doi.org/10.25921/d24s-fm44","uuid":"e395528a-3995-4baf-b27e-1689bfc2f256","dataPublisher":"NOAA","contactInfo":{"type":"CONTACT INFORMATION","shortName":"DOC/NOAA/NESDIS/NCEI","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","address":"325 Broadway, E/NE31","city":"Boulder","state":"CO","postalCode":"80305-3328","country":"USA","dataCenterUrl":"https://www.ncei.noaa.gov/products/paleoclimatology","email":"paleo@noaa.gov","phone":"828-271-4800","fax":null,"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."},"dataType":"PALEOCEANOGRAPHY","investigators":"Mudelsee, M.; Raymo, M.E.","investigatorDetails":[{"firstName":"Manfred","lastName":"Mudelsee","initials":"M.","orcId":"0000-0002-2364-9561"},{"firstName":"Maureen","lastName":"Raymo","initials":"M.E.","orcId":"0000-0001-7967-9105"}],"version":"1.0","funding":[],"studyNotes":null,"onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/5874","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-ocean-5874.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-ocean-5874.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/paleoceanography","studyCode":null,"scienceKeywords":null,"reconstruction":"N","contributionDate":"2007-03-02","entryId":"noaa-ocean-5874","earliestYearBP":3600000,"mostRecentYearBP":2400000,"earliestYearCE":-3598050,"mostRecentYearCE":-2398050,"publication":[{"author":{"name":"Mudelsee, M., and M.E. Raymo"},"pubYear":2005,"title":"Slow dynamics of the Northern Hemisphere glaciation","journal":"Paleoceanography","volume":"20","edition":null,"issue":"4","pages":null,"reportNumber":"PA4022","citation":"Mudelsee, M., and M.E. Raymo. 2005. Slow dynamics of the Northern Hemisphere glaciation. Paleoceanography, 20(4), PA4022. doi: 10.1029/2005PA001153","type":"publication","identifier":{"type":"doi","id":"10.1029/2005PA001153","url":"http://dx.doi.org/10.1029/2005PA001153"},"abstract":"Unraveling the dynamics of the Northern Hemisphere glaciation (NHG) in the Pliocene is a key step toward a quantitative theory of the climate transition from a greenhouse to an icehouse world. Extracting the ice volume signal from marine oxygen isotope (´18O) records corrupted with temperature noise can be accomplished using statistical time series analysis. We use 45 ´18O records from benthic and planktonic foraminifera and globally distributed sites to reconstruct the dynamics of NHG initiation. We compare ´18O amplitudes with those of temperature proxy records and estimate a global ice volumerelated increase of 0.40, equivalent to an overall sea level lowering of 43 m. We find the NHG started significantly earlier than previously assumed, as early as 3.6 Ma, and ended at 2.4 Ma. This long-term increase points to slow, tectonic forcing such as closing of ocean gateways or mountain building as the root cause of the NHG.","pubRank":"1"}],"site":[{"NOAASiteId":"22723","siteName":"Global","siteCode":null,"mappable":"N","locationName":"Geographic Region>Global","geo":{"geoType":"Feature","geometry":{"type":"POLYGON","coordinates":["-90","90","-180","180"]},"properties":{"southernmostLatitude":"-90","northernmostLatitude":"90","westernmostLongitude":"-180","easternmostLongitude":"180","minElevationMeters":null,"maxElevationMeters":null}},"paleoData":[{"dataTableName":"Global proxy temp Mudelsee05","NOAADataTableId":"32742","earliestYear":3600000,"mostRecentYear":2400000,"timeUnit":"cal yr BP","earliestYearBP":3600000,"mostRecentYearBP":2400000,"earliestYearCE":-3598050,"mostRecentYearCE":-2398050,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/mudelsee2005/","urlDescription":"Data Folder","linkText":"Data Folder","variables":[{"cvDataType":"PALEOCEANOGRAPHY","cvWhat":"depth variable>depth","cvMaterial":null,"cvError":null,"cvUnit":"length unit>meter","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"PALEOCEANOGRAPHY","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>age unit>calendar kiloyear before present","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"PALEOCEANOGRAPHY","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"biological material>organism>foraminifer>benthic foraminifer>calcareous benthic foraminifer>Cibicidoides sp.","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"PALEOCEANOGRAPHY","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"biological material>organism>foraminifer>benthic foraminifer","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"mainly C. wuellerstorfi and Uvigerina spp.","cvFormat":"Numeric","cvShortName":null},{"cvDataType":"PALEOCEANOGRAPHY","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"biological material>organism>foraminifer>planktic foraminifer>Trilobatus sp.>Trilobatus sacculifer","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"PALEOCEANOGRAPHY","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"biological material>organism>foraminifer>planktic foraminifer>Globorotalia sp.>Globorotalia tumida","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"PALEOCEANOGRAPHY","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"biological material>organism>foraminifer>planktic foraminifer","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"N. numerosa and N. dutertrei","cvFormat":"Numeric","cvShortName":null},{"cvDataType":"PALEOCEANOGRAPHY","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"biological material>organism>foraminifer>benthic foraminifer>calcareous benthic foraminifer>Cibicidoides sp.>Cibicidoides wuellerstorfi","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"PALEOCEANOGRAPHY","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"biological material>organism>foraminifer>benthic foraminifer","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"C. wuellerstorfi and U. peregrina","cvFormat":"Numeric","cvShortName":null}],"NOAAKeywords":["earth science>paleoclimate>paleocean"]}]}]}],"reference":{"pastThesaurusSkos":"https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf","pastThesaurusExplorer":"https://www.ncei.noaa.gov/access/paleo-search/cvterms","gcmdKeywordThesaurus":"https://earthdata.nasa.gov/earth-observation-data/find-data/idn/gcmd-keywords"},"dataLicenseDescription":null,"dataLicenseUrl":null}