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The effects of ocean eddies on tropical cyclones
(Massachusetts Institute of Technology, 2012)
The purpose of this study is to understand the interactions of tropical cyclones with ocean eddies. In particular we examine the influence of a cold-core eddy on the cold wake formed during the passage of Typhoon Fanapi ...
Radium isotopes and radon-222 as tracers of sediment-water interaction in Arctic coastal and lacustrine environments
(Massachusetts Institute of Technology, 2020)
Arctic marine and lacustrine systems are experiencing rapid warming due to climate change. These changes are especially important at the interface between sediments and surface waters because they are hotspots for ...
Urea and nickel utilization in marine cyanobacteria as evaluated by incubation, proteomic, and uptake techniques
(Massachusetts Institute of Technology, 2013)
Nitrogen and trace metal biogeochemical effects on phytoplankton productivity were compared through whole water bottle incubations and proteomic evaluation of in situ harvested particulate matter from two distinct oceanographic ...
Modeling convection in the Greenland Sea
(Massachusetts Institute of Technology, 1998)
A detailed examination of the development of a deep convection event observed in the Greenland Sea in 1988-89 is carried out through a combination of modeling, scale estimates, and data analysis. We develop a prognostic ...
Vortices in sinusoidal shear, with applications to Jupiter
(Massachusetts Institute of Technology, 2016)
In this thesis, we have studied the existence of vortex steady states in a sinusoidal background shear flow in a 1.75 layer quasi-geostrophic model. Trying to find vortex structures by integrating the Hamiltonian system ...
Linear and nonlinear Rossby waves in basins both with and without a thin meridional barrier
(Massachusetts Institute of Technology, 2002)
The linear and nonlinear Rossby wave solutions are examined in homogeneous square basins on the [beta]-plane both with and without a thin meridional barrier. In the presence of the meridional barrier the basin is almost ...
Abyssal mixing from bottom boundary effects in Mid-Atlantic Ridge flank canyons
(Massachusetts Institute of Technology, 2010)
This paper begins to explore a previously neglected mechanism for abyssal ocean mixing using bottom boundary layer dynamics. Abyssal mixing and the associated upward buoyancy fluxes are necessary to balance the sinking of ...
Phosphate-mineral interactions and potential consequences for nutrient cycling
(Massachusetts Institute of Technology, 2008)
Biogeochemical cycling of phosphate is a key component in the overall production rate of coastal ecosystems. Mineral phases in the near-shore sediments play a significant role in the return of phosphate remineralized in ...
Plagioclase preferred orientation in the layered mylonites : evaluation of flow laws for the lower crust
(Massachusetts Institute of Technology, 2008)
We evaluate the applicability of plagioclase and gabbro flow laws by comparing predicted and observed deformation mechanisms in gabbroic shear zones. Gabbros and layered gabbro mylonites were collected from the Southwest ...
Variability of zooplankton and sea surface temperature in the Southern Ocean
(Massachusetts Institute of Technology, 2006)
Interactions between physical and biological processes in the Southern Ocean have significant impacts on local ecosystems as well as on global climate. In this thesis, I present evidence that the Southern Ocean circulation ...