noaa-ocean-22585 New Zealand and Australia Pacific Region d18O and d13C data for the last 30,000 years Sikes, E.L.; Elmore, A.C.; Allen, K.A.; Cook, M.S.; Guilderson, T.P. New Zealand and Australia Pacific Region d18O and d13C data for the last 30,000 years 2017-08-25 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/22585 Investigator E.L. Sikes Investigator A.C. Elmore Investigator K.A. Allen Investigator M.S. Cook Investigator T.P. Guilderson earth science paleoclimate paleoceanography delta 18O,Cibicidoides wuellerstorfi,null,per mil PDB,null,paleoceanography,null,isotope ratio mass spectrometry,N,null earth science paleoclimate paleoceanography sample identification,null,null,null,null,paleoceanography,null,null,C,core name earth science paleoclimate paleoceanography collection water depth,null,null,meter,null,paleoceanography,null,null,N,water depth of core site earth science paleoclimate paleoceanography age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 13C,Cibicidoides wuellerstorfi,null,per mil PDB,null,paleoceanography,null,isotope ratio mass spectrometry,N,null earth science paleoclimate paleoceanography depth,null,null,centimeter,null,paleoceanography,null,null,N,null earth science paleoclimate paleocean oxygen isotopes earth science paleoclimate paleocean carbon isotopes geoscientificInformation 36167 cal yr BP 0 cal yr BP Complete -45.15 -33.53 146.28 177.67 -3836 -663 Ocean Pacific Ocean South Pacific Ocean RR0503-87JPC>LATITUDE -37.2635>LONGITUDE 176.6643 Ocean Pacific Ocean South Pacific Ocean RR0503 41JPC>LATITUDE -39.88>LONGITUDE 177.67 Ocean Pacific Ocean South Pacific Ocean RR0503-79JPC>LATITUDE -36.9587>LONGITUDE 176.5928 Ocean Pacific Ocean South Pacific Ocean RS147-GC07>LATITUDE -45.15>LONGITUDE 146.28 Ocean Pacific Ocean South Pacific Ocean H214>LATITUDE -36.92>LONGITUDE 177.43 Ocean Pacific Ocean South Pacific Ocean RR0503-125JPC>LATITUDE -36.1983>LONGITUDE 176.8892 Ocean Pacific Ocean South Pacific Ocean RR0503 83TC/JPC>LATITUDE -36.7375>LONGITUDE 176.6398 Ocean Pacific Ocean South Pacific Ocean Z2112>LATITUDE -33.53>LONGITUDE 166.53 None 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. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Sikes, Elisabeth L., Aurora C. Elmore, Katherine A. Allen, Mea S. Cook, and Thomas P. Guilderson 2016 Earth and Planetary Science Letters 456 87-97 10.1016/j.epsl.2016.09.043 http://www.sciencedirect.com/science/article/pii/S0012821X16305234?via%3Dihub

Changes in ocean circulation are thought to have contributed to lowering glacial atmospheric CO2 levels by enhancing deep ocean sequestration of carbon that was returned to the atmosphere during glacial terminations. High-resolution benthic foraminiferal d13C and d18O records from a depth transect of cores in the Southwest Pacific Ocean presented here provide evidence that both wind-and thermohaline-driven circulation drove CO2from the ocean during the last deglaciation. Shallow geochemical stratification in the glacial Southern Ocean was followed by a short pulse of rapid d13C enrichment to intermediate water depths during Heinrich Stadial1, indicative of better-ventilated intermediate waters co-occurring with documented wind-driven upwelling in the Southern Ocean. Intermediate depth d13C enrichment paused at the start of the Antarctic Cold Reversal (~14.7ka), implying a brief shallow restratification, while deeper layers were progressively flushed of d13C-depleted and d18O-enriched waters, likely caused by the increasing influence of deep waters sourced from the North Atlantic. The coincidence of atmospheric CO2increases with these geochemical shifts in both shallow and deep cores suggests that shifts in both atmospheric and oceanic circulation contributed to the deglacial rise of CO2. STUDY NOTES: Cores in study with location name and age model basis: RR0503 87TC/JPC Bay of Plenty tephrachronology; RR0503 79JPC Bay of Plenty tephrachronology; RR0503 83TC/JPC Bay of Plenty tephrachronology; H214 Bay of Plenty tephrachronology; RR0503 125JPC Bay of Plenty tephrachronology; RR0503 41JPC Bay of Plenty tephrachronology; RS147-GC07 South Tasman Rise 14C AMS; Z2112 Z2112 14C AMS

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sikes2016/sikes2016-gc07.txt NOAA Template File; GC07 d18O and d13C Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sikes2016/sikes2016-41jpc.txt NOAA Template File; 41JPC d18O and d13C Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sikes2016/sikes2016-87tcjpc.txt NOAA Template File; 87TC/JPC d18O and d13C Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sikes2016/sikes2016-z2112.txt NOAA Template File; Z2112 d18O and d13C Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sikes2016/sikes2016-h214.txt NOAA Template File; H214 d18O and d13C Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sikes2016/sikes2016-83tcjpc.txt NOAA Template File; 83TC/JPC d18O and d13C Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sikes2016/sikes2016-125jpc.txt NOAA Template File; 125JPC d18O and d13C Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/sikes2016/sikes2016-79jpc.txt NOAA Template File; 79JPC d18O and d13C Data USA/NOAA DIF Version 9.8.4 2019-05-02 2019-05-02