We combine field experiments with numerical modeling to study seawater-groundwater interaction over tidal, lunar, and seasonal cycles. Understanding the physics of flowing water provides the foundation for understanding nutrient and contaminant fluxes to the ocean, as well as the capacity of coastal sediments to filter seawater that circulates through the subsurface.
We are now focussing on coastal marshes: how biogeochemical processes interact with flow patterns to support the remarkable productivity of coastal marshes, how coupled physical, biological, and geochemical processes control nutrient cycling, greenhouse gas fluxes, and carbon accumulation within marsh platforms.
We aim to unify hydrologic and biological perspectives. How do plants and microbes operate in the oscillating porewater flow of coastal marshes? How do oscillations with different frequencies —transpiration, tidal cycles, rainstorms, and seasons — interact to drive biochemical processes in marsh sediments?
STAFF
COASTAL PAPERS
- Transient Groundwater Dynamics in a Coastal Aquifer: Tides, the Lunar Cycle and the Beach Profile, Water Resources Research, 2013, (E. Abarca, H Karam, H. F. Hemond, C. F. Harvey).
- Marine Electrical Resistivity Imaging of Submarine Ground-Water Discharge: Sensitivity Analysis and Application in Waquoit Bay, Massachusetts, USA, Hydrogeology, 2010, (R. D. Henderson, F. D. Day-Lewis, E. Abarca, C. F. Harvey, H. N. Karam, L. Liu, J.W. Lane, Jr.).
- Patterns and Variability of Groundwater Flow and Radium Activity at the Coast: A Case Study from Cape Cod, Marine Chemistry, 2011, (Michael, H., M. Charette, C. F. Harvey).
- Investigation of Aquifer-Estuary Interaction Using Wavelet Analysis of Fiber-Optic Temperature Data, Geophysical Research Letters, 2009, (R.D. Henderson, F.D. Day-Lewis, C.F. Harvey)
- A Differential Pressure Instrument with Wireless Telemetry for In-Situ Measurement of Fluid Flow across Sediment-Water Boundaries, Sensors, 2009, (A. Gardner, H. Karam, A. Mulligan, C.F. Harvey, T. Hammar, and H. F. Hemond).
COASTAL MEDIA GALLERY
