My research concentrates on several aspects of hydrogeology:

• Groundwater-Surface Water Interactions - I have been collaborating with two ASU colleagues, Dr. Chris Thaxton (Department of Physics and Astronomy) and Dr. Carol Babyak (Department of Chemistry), in a study of Boone Creek, a small trout stream which flows through the ASU campus. We have established several monitoring sites on this stream at which we collect both water quality and discharge data. We also have a number of streambed piezometers which we are using to quantify baseflow velocities and document streambed heterogeneity.

• Groundwater-Climate Interactions - I have been collaborating with a departmental colleague, Dr. Ryan Emanuel, in evaluating the effects of interannual climate oscillations such as the El Nino - Southern Oscillation and the Pacific Decadal Oscillation on groundwater and surface-water conditions in North Carolina. We recently had a manuscript accepted for publication in Geophysical Research Letters on this topic.

• Coastal Hydrogeology - I continue my work into the morphology of the freshwater-saltwater mixing zone in the surficial aquifers of barrier islands. I recently had a paper published by the Hydrogeology Journal with a former graduate student, Rachel Lauer, on the role of storm surge on mixing zone morphology.

• Fractured Bedrock Hydrogeology - In addition to studying barrier-island aquifers, I am interested in flow and transport within fractured bedrock aquifers. I have been monitoring water levels in several wells drilled into fractured bedrock in several rock units in the area. I have also been collaborating in this work with the USGS North Carolina Water Science Center in Raleigh. 

• Recharge Quantification -  I use groundwater modeling techniques to quantify recharge to unconfined aquifers. I have been monitoring a field site on Hatteras Island, North Carolina, since 1994, and have a wealth of water-level data on a cross-island transect with which to calibrate transient groundwater flow simulations. I am collaborating with Dr. David Evans of the Department of Geology at Sacramento State University on this work.

Publications
A listing of peer-reviewed publications, proceedings, dissertation, thesis, and papers that are currently in review.

Published Abstracts & Invited Talks
A listing of invited and submitted abstracts to various regional and national meetings.