I am a Professor in the School of Earth and Climate Sciences at the University of

My current research activities include: the influence of ground-water flow and solute
transport in wetland systems, watershed modeling and stream-groundwater interaction, and
applying borehole geophysics to characterize bedrock aquifer properties. 

My research usually involves applying computer models to better understanding field
observation and test the plausibility of ideas. I have used ground-water software
developed by the U.S. Geologic Survey (Modflow and Phreeqc) to simulate ground-water
processes and use the computer language ‘Python’ to manipulate data. I am currently
exploring the utility of ‘FiPy’, a general python-based toolkit capable of modeling a
wide variety of processes, for simulating hydrogeologic processes. 



Containing Arsenic-Enriched Groundwater Tracing Lead Isotopic Compositions Of Common Arsenical Pesticides In A Coastal Maine Watershed Containing Arsenic-Enriched Ground Water (with Robert A. Ayuso, Nora K. Foley, Gilpin R. Robinson Jr., Anna S. Colvin, and Gail Lipfert), Proceedings of the Annual International Conference on Soils, Sediments, Water and Energy (2012)

Arsenical pesticides and herbicides were extensively used on apple, blueberry, and potato crops in New...



Seasonal Geophysical Monitoring of Biogenic Gases in a Northern Peatland: Implications for Temporal and Spatial Variability in Free Phase Gas Production Rates (with Xavier Comas and Lee Slater), Journal of Geophysical Research-Biogeosciences (2008)

A set of high resolution surface ground penetrating radar (GPR) surveys, combined with elevation rod...



In Situ Monitoring of Free-Phase Gas Accumulation and Release in Peatlands Using Ground Penetrating Radar (GPR) (with Xavier Comas and Lee Slater), Geophysical Research Letters (2007)

We tested a set of surface common mid-point (CMP) ground penetrating radar (GPR) surveys combined...



Geophysical and Hydrological Evaluation of Two Bog Complexes in a Northern Peatland: Implications for the Distribution of Biogenic Gases at the Basin Scale (with Xavier Comas and Lee Slater), Global Biogeochemical Cycles (2005)

Ground penetrating radar (GPR) was used to determine peat basin geometry and the spatial distribution...



Spatial Variability in Biogenic Gas Accumulations in Peat Soils Is Revealed By Ground Penetrating Radar (GPR) (with Xavier Comas and Lee Slater), Geophysical Research Letters (2005)

We performed surface and borehole ground penetrating radar (GPR) tests, together with moisture probe measurements...