noaa-ocean-20365 Bay of Plenty, New Zealand Deglacial Planktonic Stable Isotope Data Schiraldi Jr., B.; Sikes, E.L.; Elmore, A.C.; Cook, M.S.; Rose, K.A. Bay of Plenty, New Zealand Deglacial Planktonic Stable Isotope Data 2016-08-01 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/20365 Investigator B. Schiraldi Jr. Investigator E.L. Sikes Investigator A.C. Elmore Investigator M.S. Cook Investigator K.A. Rose earth science paleoclimate paleoceanography delta 18O,Globigerina bulloides,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography age,null,null,calendar kiloyear before present,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 13C,Globigerina bulloides,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 13C,Globorotalia inflata,null,per mil PDB,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography delta 18O,Globorotalia inflata,null,per mil PDB,null,paleoceanography,null,null,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 Last Glacial Maximum 28022 cal yr BP 0 cal yr BP Complete -37.4223 -36.1983 176.5928 177.0023 -2541 -651 Ocean Pacific Ocean South Pacific Ocean RR0503-87JPC>LATITUDE -37.2635>LONGITUDE 176.6643 Ocean Pacific Ocean South Pacific Ocean RR0503-64JPC>LATITUDE -37.4223>LONGITUDE 177.0023 Ocean Pacific Ocean South Pacific Ocean RR0503-79JPC>LATITUDE -36.9587>LONGITUDE 176.5928 Ocean Pacific Ocean South Pacific Ocean RR0503-125JPC>LATITUDE -36.1983>LONGITUDE 176.8892 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 Benedetto Schiraldi Jr., Elisabeth L. Sikes, Aurora C. Elmore, Mea S. Cook, Kathryn A. Rose 2014 Paleoceanography 29 6 595-611 10.1002/2013PA002584 http://onlinelibrary.wiley.com/doi/10.1002/2013PA002584/full

This study examined sources of mixed layer and shallow subsurface waters in the subtropical Bay of Plenty, New Zealand, across the last deglaciation (~30-5 ka). d18O and d13C from planktonic foraminifera Globgerinoides bulloides and Globorotalia inflata in four sediment cores were used to reconstruct surface mixed layer thickness, d18O of seawater (d18OSW) and differentiate between high- and low-latitude water provenance. During the last glaciation, depleted planktonic d18OSW and enriched d13C (-0.4-0.1 per mil) indicate surface waters had Southern Ocean sources. A rapid d13C depletion of ~1 per mil in G. bulloides between 20 and 19 ka indicates an early, permanent shift in source to a more distal tropical component, likely with an equatorial Pacific contribution that persisted into the Holocene. At 18 ka, a smaller but similar shift in G. inflata d13C depletion of ~0.3 per mil suggests that deeper subsurface waters had a delayed reaction to changing conditions during the deglaciation. This contrasts with the isotopic records from nearby Hawke Bay, to the east of the North Island of New Zealand, which exhibited several changes in thermocline depth indicating switches between distal subtropical and proximal subantarctic influences during the early deglaciation ending only after the Antarctic Cold Reversal. Our results identify the midlatitude subtropics, such as the area around the North Island of New Zealand, as a key region to decipher high- versus low-latitude influences in Southern Hemisphere shallow water masses. STUDY NOTES: Stable isotope (d18O and d13C) from planktonic foraminifera (G. inflata and G. bulloides) in 4 sediment cores collected in the Bay of Plenty, New Zealand for the deglacial interval (~30 - 5 KYrBP).

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/schiraldi2014/schiraldi2014jpc125.txt Data File; Bay of Plenty Core RR0503-125-JPC Planktonic Stable Isotope Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/schiraldi2014/schiraldi2014jpc79.txt Data File; Bay of Plenty Core RR0503-79-JPC Planktonic Stable Isotope Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/schiraldi2014/schiraldi2014jpc87.txt Data File; Bay of Plenty Core RR0503-87-JPC Planktonic Stable Isotope Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/schiraldi2014/schiraldi2014jpc64.txt Data File; Bay of Plenty Core RR0503-64-JPC Planktonic Stable Isotope Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11