{"NOAAStudyId":"22450","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":"2017-08-04","dataPublisher":"NOAA","dataType":"OTHER COLLECTIONS","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/other-collections","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-other-22450.xml","doi":null,"earliestYearBP":27780,"earliestYearCE":-25830,"entryId":"noaa-other-22450","funding":[{"fundingAgency":"Natural Environment Research Council (NERC)","fundingGrant":"NE/H009922/1, NE/H007865/1"},{"fundingAgency":"Australian Research Council  ","fundingGrant":"FL100100195, DP170104665, SR140300001"}],"investigators":"Turney, C.S.M.; Palmer, J.G.; Bronk Ramsey, C.; Adolphi, F.; Muscheler, R.; Hughen, K.A.; Staff, R.A.; Jones, R.T.; Thomas, Z.A.; Fogwill, C.; Hogg, A.","mostRecentYearBP":25330,"mostRecentYearCE":-23380,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/22450","originalSource":null,"publication":[{"abstract":"Robustly testing hypotheses of geographic synchroneity of abrupt and extreme change during the late Pleistocene (60,000 to 11,650 years ago) requires a level of chronological precision often lacking in ice, marine and terrestrial sequences. Here we report a bidecadally-resolved New Zealand kauri (Agathis australis) tree-ring sequence spanning two millennia that preserves a record of atmospheric radiocarbon (14C) during ice-rafted debris event Heinrich Event 3 (HE3) in the North Atlantic and Antarctic Isotope Maximum 4 (AIM4) in the Southern Hemisphere. Using 14C in the marine Cariaco Basin and 10Be preserved in Greenland ice, the kauri 14C sequence allows us to precisely align sequences across this period. We observe no significant difference between atmospheric and marine 14C records during HE3, suggesting no stratification of surface waters and collapse in Atlantic Meridional Overturning Circulation (AMOC). Instead our results support recent evidence for a weakened AMOC across at least two millennia of the glacial period. Our work adds to a growing body of literature confirming that Heinrich events are not the cause of stadial cooling and suggests changes in the AMOC were not the primary driver of antiphase temperature trends between the hemispheres. Decadally-resolved 14C in ancient kauri offers a powerful new (and complementary) approach to polar ice core CH4 alignment for testing hypotheses of abrupt and extreme climate change.","author":{"name":"Chris S.M. Turney, Jonathan Palmer, Christopher Bronk Ramsey, Florian Adolphi, Raimund Muscheler, Konrad A. Hughen, Richard A. Staff, Richard T. Jones, Zoë A. Thomas, Christopher J. Fogwill, Alan Hogg"},"citation":"Chris S.M. Turney, Jonathan Palmer, Christopher Bronk Ramsey, Florian Adolphi, Raimund Muscheler, Konrad A. Hughen, Richard A. Staff, Richard T. Jones, Zoë A. Thomas, Christopher J. Fogwill, Alan Hogg. 2016. High-precision dating and correlation of ice, marine and terrestrial sequences spanning Heinrich Event 3: Testing mechanisms of interhemispheric change using New Zealand ancient kauri (Agathis australis). Quaternary Science Reviews, 137, 126-134. doi: 10.1016/j.quascirev.2016.02.005","edition":null,"identifier":{"id":"10.1016/j.quascirev.2016.02.005","type":"doi","url":"http://dx.doi.org/10.1016/j.quascirev.2016.02.005"},"issue":null,"journal":"Quaternary Science Reviews","pages":"126-134","pubRank":"1","pubYear":2016,"reportNumber":null,"title":"High-precision dating and correlation of ice, marine and terrestrial sequences spanning Heinrich Event 3: Testing mechanisms of interhemispheric change using New Zealand ancient kauri (Agathis australis)","type":"publication","volume":"137"},{"abstract":null,"author":{"name":"Chris S.M. Turney, Richard T. Jones, Steven J. Phipps, Zoë Thomas, Alan Hogg, A. Peter Kershaw, Christopher J. Fogwill, Jonathan Palmer, Christopher Bronk Ramsey, Florian Adolphi, Raimund Muscheler, Konrad A. Hughen, Richard A. Staff, Mark Grosvenor, Nicholas R. Golledge, Sune Olander Rasmussen, David K. Hutchinson, Simon Haberle, Andrew Lorrey, Gretel Boswijk, and Alan Cooper"},"citation":"Chris S.M. Turney, Richard T. Jones, Steven J. Phipps, Zoë Thomas, Alan Hogg, A. Peter Kershaw, Christopher J. Fogwill, Jonathan Palmer, Christopher Bronk Ramsey, Florian Adolphi, Raimund Muscheler, Konrad A. Hughen, Richard A. Staff, Mark Grosvenor, Nicholas R. Golledge, Sune Olander Rasmussen, David K. Hutchinson, Simon Haberle, Andrew Lorrey, Gretel Boswijk, and Alan Cooper. 2017. Rapid global ocean-atmosphere response to Southern Ocean freshening during the last glacial. Nature Communications, 8, 520. doi: 10.1038/s41467-017-00577-6","edition":"520","identifier":{"id":"10.1038/s41467-017-00577-6","type":"doi","url":"http://dx.doi.org/10.1038/s41467-017-00577-6"},"issue":null,"journal":"Nature Communications","pages":null,"pubRank":"2","pubYear":2017,"reportNumber":null,"title":"Rapid global ocean-atmosphere response to Southern Ocean freshening during the last glacial","type":"publication","volume":"8"}],"reconstruction":"N","scienceKeywords":["Agathis australis (D. Don) Loudon","kauri pine","AGAU"],"site":[{"NOAASiteId":"57384","geo":{"geoType":"Feature","geometry":{"coordinates":["-35.83","173.64"],"type":"POINT"},"properties":{"easternmostLongitude":"173.64","maxElevationMeters":"100","minElevationMeters":"100","northernmostLatitude":"-35.83","southernmostLatitude":"-35.83","westernmostLongitude":"173.64"}},"locationName":"Continent>Australia/New Zealand>New Zealand","mappable":"Y","paleoData":[{"NOAADataTableId":"33586","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>others"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/radiocarbon/finlayson2016c14.txt","linkText":"Finlayson, New Zealand Ancient Kauri Radiocarbon Data","urlDescription":"Formatted Text Data File","variables":[]}],"dataTableName":"Fin8C14","dataTableNotes":null,"earliestYear":27780,"earliestYearBP":27780,"earliestYearCE":-25830,"mostRecentYear":25330,"mostRecentYearBP":25330,"mostRecentYearCE":-23380,"species":[],"timeUnit":"cal yr BP"},{"NOAADataTableId":"37213","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/radiocarbon/finlayson08.rwl","linkText":"Finlayson, New Zealand Ancient Kauri Ring Width Data","urlDescription":"Data File","variables":[]}],"dataTableName":"FIN08rwl","dataTableNotes":null,"earliestYear":27780,"earliestYearBP":27780,"earliestYearCE":-25830,"mostRecentYear":25420,"mostRecentYearBP":25420,"mostRecentYearCE":-23470,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Finlayson"}],"studyCode":null,"studyName":"Finlayson, New Zealand Ancient Kauri Radiocarbon and Ringwidth Data","studyNotes":"Bidecadal 14C measurements on a 2000 year ancient Kauri tree-ring record from Finlayson, New Zealand.  Floating Finlayson08 ringwidth data series added 10/10/2018.","version":"1.0","xmlId":"20624"}