|
The Past, Present, and Future ENSO. Markus Jochum, Peter Molnar, Samantha Stevenson, and I are studying the changes to the El Nino/Southern Oscillation (ENSO) under different climate forcing scenarios, from the early Pliocene to potential future warming scenarios. |
|
Diagnosing the Eddy Stirring Tensor. In collaboration with a team of scientists using the 1/10 degree global POP model, especially Frank Bryan and John Dennis, I am trying to optimally diagnose the tensor that constitutes the flux-gradient relationship for eddy tracer transport. If this tensor were mapped, it would be a powerful tool in understanding and parameterizing mesoscale eddy fluxes. |
|
Submesoscale Eddies in the Ocean Mixed Layer.. In collaboration with members of the climate process team on eddy-mixed layer interaction, I've been working on modeling and parameterizing submesoscale eddies in the oceanic mixed layer. Presently, I am working with Raf Ferrari and Glenn Flierl on high horizontal-resolution simulations of these submesoscale eddies and their interactions with mesoscale eddies. The model is a limited vertical-mode model based on Blumen's. Some future directions may be the coupling (or lack thereof) between convective plumes and mixed layer eddies, and testing our parameterization versus simulations of deep convection. |
|
Wind-Driven Ocean. My dissertation work focused on closing the vorticity budget in the wind-driven ocean. That is, if the wind spins up the ocean, how does it spin-down/equilibrate? I wrote a Chebyshev-pseudospectral model for simulating a barotropic ocean at high Reynolds number, and published a number of papers studying this model and using it to interpret the ocean. Balu Nadiga and I are presently trying to understand how and why a Lagrangian-averaged alpha model is able to reproduce some of the high-resolution effects in this model at coarser resolution. Joel Franklin and I have been talking about doing stochastics in this model for years, and might just do it some day... |
|
