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Stefan Gary


  • PA37 1QA

    United Kingdom

  • 641 Citations
  • 12 h-Index

Research output per year

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Personal profile

Research expertise

As a large-scale physical oceanographer, my overarching research focus is the Atlantic Meridional Overturning Circulation (AMOC): a northward flow of relatively warm, shallow, and salty waters and the corresponding southward return flow of cold, deep, fresher waters.  As such, the AMOC impacts the global redistribution of heat and freshwater as well as the timescale and extent of oceanic anthropogenic carbon uptake.  For my PhD dissertation and associated publications, my collaborators and I showed that a signficant component of the deep flow follows a broad, distributed pathway though the interior of the Atlantic in addition to a generally accepted pathway along the Deep Western Boundary Current.  This result is important because the interior pathway is much slower than the boundary pathway, prompting a reevaluation of the timescales of the AMOC.  More recently, I have also explored the fate of temperature anomalies in Eighteen Degree Water (EDW), a watermass embedded in the upper layer of the AMOC.  Now, I am investigating heat and freshwater fluxes in the subpolar North Atlantic by conducting observations with ships and gliders on the Extended Ellett Line (

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Research Output

Open Access
  • A sea change in our view of overturning in the sub polar North Atlantic

    Lozier, M. S., Li, F., Bacon, S., Bahr, F., Bower, A. S., Cunningham, S., de Jong, M. F., de Steur, L., deYoung, B., Fischer, J., Gary, S., Greenan, B. J. W., Holliday, N. P., Houk, A., Houpert, L., Inall, M., Johns, W., Johnson, C. L., Karstensen, J., koman, G. & 17 others, Le Bras, I. A., Lin, X., Mackay, N., Marshall, D., Mercier, H., Oltmans, M., Pickart, R. S., Ramsey, A. L., Rayner, D., Straneo, F., Thierry, V., Torres, D. J., Williams, R., Wilson, C., Yang, J., Yashayaev, I. & Zhao, J., 1 Feb 2019, In : Science. 363, 6426, p. 516-521 6 p.

    Research output: Contribution to journalArticle

    Open Access
  • 41 Citations (Scopus)
    23 Downloads (Pure)
    Open Access
  • 10 Citations (Scopus)
    1 Downloads (Pure)
    Open Access
  • 8 Citations (Scopus)
    172 Downloads (Pure)

    Seasonal cycles of oceanic transports in the eastern subpolar North Atlantic

    Gary, S., Cunningham, S., Johnson, C., Houpert, L., Holliday, N. P., Behrens, E., Biastoch, A. & Böning, C. W., 27 Feb 2018, In : Journal of Geophysical Research: Oceans. 123, p. 1471-1484 36 p.

    Research output: Contribution to journalArticle

    Open Access
  • 4 Citations (Scopus)
    122 Downloads (Pure)


    • 19 Oral presentation

    Out of sight out of mind? Microplastic pollution of the deep-sea ecosystem, a study from the Rockall Trough

    Winnie Courtene-Jones (Speaker), Brian Quinn (Speaker), Stefan Gary (Speaker), Bhavani Narayanaswamy (Speaker)
    13 Sep 2018

    Activity: Talk or presentationOral presentation

    Ocean heat content and fluxes of energy in the Labrador Sea: 1992 to 2014

    Stuart Cunningham (Speaker), B. Berx (Speaker), Clare Johnson (Speaker), Loic Houpert (Speaker), Stefan Gary (Speaker)
    Nov 2016

    Activity: Talk or presentationOral presentation

    Particle residence times and AMOC pathways in the eastern subpolar North Atlantic

    Stefan Gary (Speaker), Stuart Cunningham (Speaker), Clare Johnson (Speaker)
    Nov 2016

    Activity: Talk or presentationOral presentation

    Source, cycling and circulation effects of seawater rare earth elements in the NE Atlantic

    K.C. Crocket (Speaker), emily hill (Speaker), Richard Abell (Speaker), Clare Johnson (Speaker), Stefan Gary (Speaker), Tim Brand (Speaker), ed hathorne (Speaker)
    Jun 2016

    Activity: Talk or presentationOral presentation


    Microplastic pollution in the deep sea ecosystem: a study from the Rockall Trough, North East Atlantic Ocean

    Author: Courtene-Jones, W., 4 Jun 2019

    Supervisor: Narayanaswamy, B. (Supervisor), Gary, S. (Supervisor) & Quinn, B. (Supervisor)

    Student thesis: Doctoral ThesisDoctor of Philosophy (awarded by UHI)