Coastal Systems
Geosciences
Fitzsimmons
Wiberg
My primary research interest is in sediment erosion, transport, and deposition in river, coastal, and wetland environments. Current research topics include storm-driven transport and the formation of sedimentary strata on the continental shelf, erosion and deposition on tidal salt marshes, flow-sediment-vegetation interactions in shallow coastal bays, mud dynamics in meso- and macro-tidal flats, wave-formed ripples, impact of climate change on barrier-bay-marsh morphology, and sediment associated contaminant transport.
Miller
Dr. Lauren Miller’s research broadly focuses on past changes in coastal, marine, and glacial environments and the processes that control those changes, primarily using sedimentological and geomorphological archives. For more information and available graduate student positions, visit her research website.
Scanlon
My primary research interests are in the areas of (1) catchment hydrology, focusing on hydrological and geochemical transport processes, and (2) land-atmosphere interaction, including the exchange of water, energy, and gaseous compounds such as carbon dioxide, nitrous oxide, and methane between the terrestrial surface and the atmosphere. I seek to develop an integrated understanding of how the hydrological cycle, vegetation processes, and atmospheric dynamics are linked as well as how these connections are manifest in terms of nutrient cycling and ecosystem function.
Rice
My overall research interest is in watershed biogeochemical processes and identifying the hydrologic drivers of those processes. More specifically, my research focuses on the status and trends of stream flow and stream-water quality in response to stressors, including air pollution, climatic variability, and anthropogenic land-use influences.
Macko
Howard
My research focuses on the complex interactions and constraints that govern the evolution of natural landscapes, including surfaces of other planets. This research combines field studies, theory, simulation modeling, and quantitative analysis. Field studies have included evolution of channels in badlands, the natural regime and man’s influence on the Colorado River in the Grand Canyon, and the role of groundwater sapping in erosion of sandstone canyons in the southwest U.S..
Herman
My general field of interest is low-temperature aqueous geochemistry, encompassing problems in water-rock interactions, kinetics of geochemical reactions, and evolution of groundwater chemistry in various hydrogeological environments. My research includes elements of field studies, laboratory experimentation, and theoretical modeling. One research project is focused on the fate and transport of bacteria and organic contaminants in groundwater and is a collaborative effort with Messrs. Mills and Hornberger.
Galloway
My biogeochemical research includes investigations on the natural and anthropogenic controls on chemical cycles at the watershed, regional and global scales. I started first with trace metal biogeochemistry of the coastal ocean, and then expanded to investigations on the increased acidification of the atmosphere, soils and fresh waters. My current research focuses on beneficial and detrimental effects of reactive nitrogen as it cascades between the atmosphere, terrestrial ecosystems and freshwater and marine ecosystems. My most recent work examines how to maximize the use of nitrogen for
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