PhD, 2000, Columbia University
I am trained in oceanography and low temperature geochemistry. The general areas of my research are carbon cycle, climate change, and their interactions. Typically, I use physics-biogeochemistry coupled models of global ocean in order to probe carbon-climate feedbacks. The time period of interest spans the late Pleistocene glacial-interglacial, the modern, and the near future. Recently I have been interested in how the plasticity of phytoplankton's chemical makeup affects the global ocean carbon cycle and why dissolved organic carbon in the deep ocean is so old. A local research interest is Lake Superior. I aim to understand the formation and migration of Lake Superior's thermal bar using satellite imagery and numerical modeling.
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