Research interests lie in the general field of aqueous geochemistry and center on: 1) the transport of water and dissolved material in groundwater, surface waters, and the coastal ocean; 2) how flow patterns affect water quality; 3) gas exchange across the air-water interface; 4) climate change during the last 30,000 years. These questions are examined using experiments conducted by introducing chemical tracers into the water bodies, plus analysis of flow patterns, residence times, and mixing rates inferred from the distribution of natural and anthropogenic tracers.
• Impact of natural marine hydrocarbon seeps on the regional environment and global methane cycle. For more on seeps, surf to the Seeps website.
• Groundwater flow near Aquifer Storage and Recovery sites.
• Chemical evolution of the shallow groundwater.