IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v13y2022i1d10.1038_s41467-022-31116-7.html
   My bibliography  Save this article

A deep Tasman outflow of Pacific waters during the last glacial period

Author

Listed:
  • Torben Struve

    (Imperial College London
    Imperial College London
    University of Oldenburg)

  • David J. Wilson

    (Imperial College London
    University of London)

  • Sophia K. V. Hines

    (California Institute of Technology
    Columbia University
    Woods Hole Oceanographic Institution)

  • Jess F. Adkins

    (California Institute of Technology)

  • Tina Flierdt

    (Imperial College London)

Abstract

The interoceanic exchange of water masses is modulated by flow through key oceanic choke points in the Drake Passage, the Indonesian Seas, south of Africa, and south of Tasmania. Here, we use the neodymium isotope signature (εNd) of cold-water coral skeletons from intermediate depths (1460‒1689 m) to trace circulation changes south of Tasmania during the last glacial period. The key feature of our dataset is a long-term trend towards radiogenic εNd values of ~−4.6 during the Last Glacial Maximum and Heinrich Stadial 1, which are clearly distinct from contemporaneous Southern Ocean εNd of ~−7. When combined with previously published radiocarbon data from the same corals, our results indicate that a unique radiogenic and young water mass was present during this time. This scenario can be explained by a more vigorous Pacific overturning circulation that supported a deeper outflow of Pacific waters, including North Pacific Intermediate Water, through the Tasman Sea.

Suggested Citation

  • Torben Struve & David J. Wilson & Sophia K. V. Hines & Jess F. Adkins & Tina Flierdt, 2022. "A deep Tasman outflow of Pacific waters during the last glacial period," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-31116-7
    DOI: 10.1038/s41467-022-31116-7
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-022-31116-7
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-022-31116-7?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. L. C. Skinner & F. Primeau & E. Freeman & M. de la Fuente & P. A. Goodwin & J. Gottschalk & E. Huang & I. N. McCave & T. L. Noble & A. E. Scrivner, 2017. "Radiocarbon constraints on the glacial ocean circulation and its impact on atmospheric CO2," Nature Communications, Nature, vol. 8(1), pages 1-10, December.
    2. Edouard Bard & Rosalind E. M. Rickaby, 2009. "Migration of the subtropical front as a modulator of glacial climate," Nature, Nature, vol. 460(7253), pages 380-383, July.
    3. A. Biastoch & C. W. Böning & F. U. Schwarzkopf & J. R. E. Lutjeharms, 2009. "Increase in Agulhas leakage due to poleward shift of Southern Hemisphere westerlies," Nature, Nature, vol. 462(7272), pages 495-498, November.
    4. Rong Hu & Alexander M. Piotrowski, 2018. "Neodymium isotope evidence for glacial-interglacial variability of deepwater transit time in the Pacific Ocean," Nature Communications, Nature, vol. 9(1), pages 1-12, December.
    5. Ning Zhao & Delia W. Oppo & Kuo-Fang Huang & Jacob N. W. Howe & Jerzy Blusztajn & Lloyd D. Keigwin, 2019. "Glacial–interglacial Nd isotope variability of North Atlantic Deep Water modulated by North American ice sheet," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Shinya Iwasaki & Lester Lembke-Jene & Kana Nagashima & Helge W. Arz & Naomi Harada & Katsunori Kimoto & Frank Lamy, 2022. "Evidence for late-glacial oceanic carbon redistribution and discharge from the Pacific Southern Ocean," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    2. Jingyu Liu & Yipeng Wang & Samuel L. Jaccard & Nan Wang & Xun Gong & Nianqiao Fang & Rui Bao, 2023. "Pre-aged terrigenous organic carbon biases ocean ventilation-age reconstructions in the North Atlantic," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-31116-7. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.