IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v10y2019i1d10.1038_s41467-019-13083-8.html
   My bibliography  Save this article

Rebound of shelf water salinity in the Ross Sea

Author

Listed:
  • Pasquale Castagno

    (Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope”, Centro Direzionale, Isola C4)

  • Vincenzo Capozzi

    (Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope”, Centro Direzionale, Isola C4)

  • Giacomo R. DiTullio

    (Grice Marine Laboratory, University of Charleston)

  • Pierpaolo Falco

    (Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope”, Centro Direzionale, Isola C4)

  • Giannetta Fusco

    (Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope”, Centro Direzionale, Isola C4)

  • Stephen R. Rintoul

    (CSIRO Oceans and Atmosphere
    Centre for Southern Hemisphere Oceans Research
    Australian Antarctic Program Partnership)

  • Giancarlo Spezie

    (Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope”, Centro Direzionale, Isola C4)

  • Giorgio Budillon

    (Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope”, Centro Direzionale, Isola C4)

Abstract

Antarctic Bottom Water (AABW) supplies the lower limb of the global overturning circulation and ventilates the abyssal ocean. In recent decades, AABW has warmed, freshened and reduced in volume. Ross Sea Bottom Water (RSBW), the second largest source of AABW, has experienced the largest freshening. Here we use 23 years of summer measurements to document temporal variability in the salinity of the Ross Sea High Salinity Shelf Water (HSSW), a precursor to RSBW. HSSW salinity decreased between 1995 and 2014, consistent with freshening observed between 1958 and 2008. However, HSSW salinity rebounded sharply after 2014, with values in 2018 similar to those observed in the mid-late 1990s. Near-synchronous interannual fluctuations in salinity observed at five locations on the continental shelf suggest that upstream preconditioning and large-scale forcing influence HSSW salinity. The rate, magnitude and duration of the recent salinity increase are unusual in the context of the (sparse) observational record.

Suggested Citation

  • Pasquale Castagno & Vincenzo Capozzi & Giacomo R. DiTullio & Pierpaolo Falco & Giannetta Fusco & Stephen R. Rintoul & Giancarlo Spezie & Giorgio Budillon, 2019. "Rebound of shelf water salinity in the Ross Sea," Nature Communications, Nature, vol. 10(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13083-8
    DOI: 10.1038/s41467-019-13083-8
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-019-13083-8
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-019-13083-8?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
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Una Kim Miller & Christopher J. Zappa & Arnold L. Gordon & Seung-Tae Yoon & Craig Stevens & Won Sang Lee, 2024. "High Salinity Shelf Water production rates in Terra Nova Bay, Ross Sea from high-resolution salinity observations," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
    2. Zhaoru Zhang & Chuan Xie & Pasquale Castagno & Matthew H. England & Xiaoqiao Wang & Michael S. Dinniman & Alessandro Silvano & Chuning Wang & Lei Zhou & Xichen Li & Meng Zhou & Giorgio Budillon, 2024. "Evidence for large-scale climate forcing of dense shelf water variability in the Ross Sea," Nature Communications, Nature, vol. 15(1), pages 1-13, 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:10:y:2019:i:1:d:10.1038_s41467-019-13083-8. 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.

    We have no bibliographic references for this item. You can help adding them by using 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.