Marine Chemistry & Geochemistry
Work: 508 289 2798
Building: McLean 205
Woods Hole Oceanographic Institution
Woods Hole, MA 02543
My research interests include ecosystem metabolism, calcification, and nutrient cycling, the in-situ natural drivers of these processes, and their roles in global biogeochemical cycling. I have interests in global environmental change, specifically hypoxia, ocean acidification, and rising temperatures, and their influence on specific bio-physical interactions and generally on the global carbon cycle. This research often includes the development and engineering of new in situ sensors, platforms, and vehicles to investigate these processes. My research is interdisciplinary involving biology, geochemistry, fluid dynamics, and community ecology.
Turbulent exchange processes are a major tool that I use to investigate these processes, such as the aquatic eddy covariance technique. The technique derives from terrestrial systems, where there is currently over 500 "Eddy Flux" towers around the world that continuosly measure the exchange of carbon dioxide, heat, and mositure between the Earth's surface and the atmosphere. I use these same basic principles in aquatic environments to examine the flux of oxygen across the sediment-water interface to investigate metabolism and carbon cycling. Recently, I have adapted the technique to measure fluxes of pH or hydrogen ions to investigate ocean acidification and carbonate chemistry in seawater.
B.S. Biochemistry, Albright College M.S. Environmental Science, University of Virginia Ph.D. Environmental Science - Ecology, University of Virginia