Journal cover Journal topic
Ocean Science An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 2.864
IF2.864
IF 5-year value: 3.337
IF 5-year
3.337
CiteScore value: 4.5
CiteScore
4.5
SNIP value: 1.259
SNIP1.259
IPP value: 3.07
IPP3.07
SJR value: 1.326
SJR1.326
Scimago H <br class='widget-line-break'>index value: 52
Scimago H
index
52
h5-index value: 30
h5-index30
Preprints
https://doi.org/10.5194/osd-10-555-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/osd-10-555-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

  15 Mar 2013

15 Mar 2013

Review status
This preprint was under review for the journal OS but the revision was not accepted.

Coupling of eastern and western subpolar North Atlantic: salt transport in the Irminger Current

A. Born2,1, T. F. Stocker2,1, and A. B. Sandø3,4 A. Born et al.
  • 1Climate and Environmental Physics, Physics Institute, University of Bern, Bern, Switzerland
  • 2Oeschger Centre for Climate Change Research, Bern, Switzerland
  • 3Institute for Marine Research, Bergen, Norway
  • 4Bjerknes Centre for Climate Research, Bergen, Norway

Abstract. Salt transport in the Irminger Current and thus the coupling between eastern and western subpolar North Atlantic plays an important role for climate variability across a wide range of time scales. High-resolution ocean modeling and observations indicate that salinities in the eastern subpolar North Atlantic decrease with enhanced circulation of the North Atlantic subpolar gyre (SPG). This has led to the perception that a stronger SPG also transports less salt westward. In this study, we analyze a regional ocean model and a comprehensive global coupled climate model, and show that a stronger SPG transports more salt in the Irminger Current irrespective of lower salinities in its source region. The additional salt converges in the Labrador Sea and the Irminger Basin by eddy transports, increases surface salinity in the western SPG, and favors more intense deep convection. This is part of a positive feedback mechanism with potentially large implications for climate variability and predictability.

A. Born et al.

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

A. Born et al.

A. Born et al.

Viewed

Total article views: 1,701 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
901 716 84 1,701 84 86
  • HTML: 901
  • PDF: 716
  • XML: 84
  • Total: 1,701
  • BibTeX: 84
  • EndNote: 86
Views and downloads (calculated since 15 Mar 2013)
Cumulative views and downloads (calculated since 15 Mar 2013)

Cited

Saved

Discussed

No discussed metrics found.
Latest update: 28 Oct 2020
Publications Copernicus
Download
Citation