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Stefan Gary


  • SAMS, Scottish Marine Institute, Oban, Argyll, PA37 1QA

    United Kingdom

  • PA37 1QA

    United Kingdom

  • 605 Citations
  • 12 h-Index
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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 2009 2019

31 Citations (Scopus)
22 Downloads (Pure)

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
meridional circulation
deep water formation
Intergovernmental Panel on Climate Change
twenty first century
7 Citations (Scopus)
1 Downloads (Pure)
Open Access
7 Citations (Scopus)
171 Downloads (Pure)
Open Access
rare earth elements
Rare earth elements
rare earth element
3 Citations (Scopus)
122 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
meridional circulation
1 Citation (Scopus)
35 Downloads (Pure)

Structure and Transport of the North Atlantic Current in the Eastern Subpolar Gyre from Sustained Glider Observations

Houpert, L., Inall, M., Dumont, E., Gary, S., Johnson, C., Porter, M., Johns, W. E. & Cunningham, S. A., 29 Aug 2018, In : Journal of Geophysical Research: Oceans. 123, 8, p. 6019-6038 19 p.

Research output: Contribution to journalArticle

Open Access

Activities 2014 2018

  • 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

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)
Jan 2016

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

ATLAS: Adding chemical sensors to the eastern portion of the OSNAP array

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