John Marshall

John Marshall is an oceanographer interested in climate and the general circulation of the atmosphere and oceans, which he studies through the development of mathematical and numerical models of key processes. His research has focused on problems of ocean circulation and coupled climate dynamics involving interactions between motions on different scales, using theory, laboratory experiments, observations and new innovative approaches to global ocean modeling pioneered by his group at MIT— particularly through the development of MITgcm and participation in CliMA, the Climate Modeling Alliance collaboration with Caltech and NASA JPL.

Current research interests include: ocean convection and subduction, stirring and mixing in the ocean, eddy dynamics and the Antarctic Circumpolar Current, the role of the ocean in climate, climate dynamics, aquaplanets.

Topics I investigate:

• Ocean Dynamics and particularly understanding interactions across scales from those of convection, through the mesoscale up to the global scale circulation.
• Climate Dynamics and the role of the ocean in setting the climate of the planet.
• Climate modeling.