Thermohaline circulation and its response to climate change, and the role of mesoscale eddies in the ocean general circulation, numerical modeling.
Modelling and analysis of the ocean dynamics and its key contribution to climate variability using a combination of numerical models, observation and data assimilation to create realistic simulations of the global and regional ocean circulation that are relevant to describe the ocean and sea-ice variability.
Role of the oceans in the earth’s climate system and computational modelling of the ocean as geophysical fluid, developing subgrid scale parameterizations to represent unresolved physics in ocean general circulation models and investigating mechanisms and potential predictability associated with the (multi)decadal variability of the Atlantic meridional overturning circulation.
Theoretical and numerical models of ocean circulation in both tropical and global domains, parameterization of the effects of mesoscale eddies on the mean flow in ocean models that do not resolve mesoscale eddies.
Dynamical oceanography, particularly problems concerning large-scale ocean circulation.
CCSM/CESM project (CESM Coupler), Pacific Basin ocean model in ENSO.
Role of the ocean in climate variability; Variability, mechanisms, and climatic impacts of the Atlantic meridional overturning circulation, especially on decadal time scales; Air-ice-sea interactions in the context of climate variability.
Effects of changes in the Earth's atmosphere and climate on coral reefs and other marine ecosystems, coral bleaching, ocean acidification.
Physics of the upper ocean and feedbacks with the atmosphere, low frequency, large scale phenomena, and the role of the upper ocean as a conduit between the interior ocean and the atmosphere, upper ocean models for global climate modeling studies, atmosphere-ocean forcing.
Software engineering in ocean models, especially parameterizations of vertical processes. Main developer for CVMix (Community Vertical Mixing library) and heavily involved with MARBL (Marine Biogeochemistry Library); CVMix is available as an option in POP, MARBL is still a work in progress as of early 2016
Modeling ocean biogeochemical cycles and the global carbon cycle.
Modeling ocean ecosystems and biogeochemistry, interactions between ocean physics and biology, global carbon cycle, ocean tracers and stable isotope biogeochemistry, impacts of climate change on ecosystems and biogeochemistry.
Modeling marine ecosystems and plankton dynamics, representation of zooplankton in MARBL (Marine Biogeochemistry Library), role of zooplankton in the biological pump.
Representation of small scale features in the ocean and how they affect the atmosphere and climate.
Geophysical fluid dynamics, upper-ocean physics, atmosphere-ocean interaction, hydrodynamical-biogeochemical interaction, and mathematical/computational modeling and analysis methods.
Overturning circulation of the ocean, its climactic significance, and its potential predictability; air-sea fluxes, mechanisms of ocean variability, model sensitivity to configuration and surface boundary conditions.