Ocean Circulation and Dynamics, Ocean’s Role in Climate
My overall research interest is the fundamental understanding of the physics of the basin-scale ocean and its role in Earth’s climate. I am involved in improving estimates of the geophysical state of the ocean circulation through analysis of field data and circulation model results. The subpolar North Atlantic and Arctic Ocean ventilation process (rates, pathways, variability, and mechanisms) interest me in particular. High latitude physical oceanography, in both hemispheres, is another research theme. I also investigate key physical processes that maintain the state of the global upper ocean focusing on fluid dynamics and thermodynamics and their role in controlling sea surface temperature variability over years to decades. These are all examples of rotating stratified fluid dynamics, an amazing and beautiful subject.
Knowledge of these processes is vital if we are to describe and understand climatic fluctuations on time-scales of years to decades. At these low frequencies we know that the ocean and atmosphere interact as a coupled system. Understanding low frequency natural climate perturbations is clearly a problem of special current relevance. Further, explaining natural climate variability is a prerequisite of addressing mankind’s effect on global climate.
Moreover, this understanding guides our thinking about other oceans in time and space. Recent discoveries of extra-terrestrial oceans in our solar system and recognition of how much Earth’s ocean has changed in the past, galvanizes me to think about the role of oceans in planetary system dynamics writ large.
2012–2018 Morton K. Blaustein Chair and Professor of Earth & Planetary Sciences, Johns Hopkins University.
2000– Assistant, Associate, then Full Professor, Johns Hopkins University.
1996 University Lecturer in Physics, University of Oxford, UK.
1994 Postdoc, MIT.
1993 Ph.D. Physical Oceanography, University of Southampton, UK (alumnus profile).
1992 M.A. Physics & Theoretical Physics, University of Cambridge, UK.
1988 B.A. Physics & Theoretical Physics, University of Cambridge, UK
News & Announcements
Mattia Almansi presented and defended his PhD thesis yesterday. His thesis title is “Denmark Strait Ocean Circulation Variability.” The presentation and discussion was online with participants in Europe and the US. Mattia himself was alone in an AirBnB in Southampton, UK (where he will start his postdoc next week). Under these challenging circumstances, Mattia did… Read more »
Postdoc Miguel Jimenez Urias, Tom Haine, and Charles Meneveau have been awarded a $25,000 IDIES seed fund grant for the project “Towards the Development of Scale-Dependent, Non-Local, Turbulent Closures in Rotating Stratified Flows”! The project will last one year, starting 1 April 2020.
Congratulations to graduate student Atousa Saberi who has been awarded a Dean’s Teaching Fellowship! Atousa will teach a class on “Natural Hazards” in the Earth & Planetary Sciences department in Fall 2020.
Graduate student Mattia Almansi published his latest research findings on Denmark Strait Overflow cyclones, and their relationship to overflow surges, in Geophysical Research Letters. Well done Mattia!
Atousa Saberi passed her Graduate Board Oral exam today, an important milestone on her journey towards her PhD. Congratulations!
Supported by a recent NASA award, we’re studying the freshwater cycle in the northern North Atlantic Ocean and its impacts on the currents there.
Dr. Miguel Jimenez Urias joined to group as a postdoc after finishing his PhD at the University of Washington. Dr. Renske Gelderloos was promoted to Associate Research Scientist! Ocean Circulation in Three Dimensions was published by Cambridge University Press. The python OceanSpy software package for analysing circulation model results was released.