Current Interests: Ground-water exchange has significant effects on the physical hydrology, chemistry, and ecology of lake, river, and wetland systems. An improved understanding of their connections and exchanges can improve water resources management and policy. Eastern North Carolina is blessed with an abundance of rivers, wetlands, and aquifers and is an ideal location to study surface water and groundwater hydrology! Below are some of the research topics I am currently involved with. Much of our recent work focuses on human impacts on water resources. We are always looking for interested students that don't mind getting their feet wet! If you are interested please contact me at: email@example.com . A more detailed summary of past and recent works can be found here: C.V. I teach numerous courses in hydrology and environmental geology, including portions of our summer Field Camp in New Mexico and Colorado and have participated in the ReachUp program for science outreach. If you are interested in the Graduate Certificate in Hydrogeology and Environmental Geology, please contact me or visit our website: http://www.ecu.edu/geology/hydrogeology_certificate_webpage%20update.htm
Effects of urbanization on river-groundwater interactions in the Coastal Plain of North Carolina.
of surface water-groundwater interactions along the
Geological controls on septic system treatment of wastewater in Coastal NC.
Field methods to investigate nourishment of wetlands and wastewater migration in the subsurface.
Nutrient processing in Appalachian Mountain and Coastal Plain headwater catchments.
Humphrey, C., and O’Driscoll, M. 2011. Cumulative saturation of low chroma soil colors and shallower depths: Implications for on-site wastewater system design. International Journal of Soil Science 6(4):249-258.
Humphrey, C., and O’Driscoll, M. 2011. Evaluation of on-site wastewater system E. coli contributions to shallow groundwater in coastal North Carolina. Water Science and Technology: Water Supply 63(4):789-795.
Humphrey, C., and O’Driscoll, M. 2011. Evaluation of soil colors as indicators of the seasonal high water table in coastal North Carolina. International Journal of Soil Science 6(2):103-113.
Humphrey, C., O’Driscoll, M., and Zarate, M. 2010. Controls on groundwater nitrogen contributions from on-site wastewater systems in coastal North Carolina. Water Science and Technology: Water Supply 62(6):1448-1455.
O’Driscoll, M., Clinton, S., Jefferson, A., Manda, A., and McMillan, S. 2010. The effects of urbanization on streams in the southern US: A Review. Water 2: 605-648; DOI:10.3390/w2030605.
O’Driscoll, M., Johnson, P., and Mallinson, D. 2010. Geological controls and effects of floodplain asymmetry on river-groundwater interactions in the southeastern coastal plain, USA. Hydrogeology Journal 18: 1265-1279.
Harnsberger, D. and O’Driscoll, M. 2010. The influence of urban channel incision and water table decline on floodplain groundwater nitrogen dynamics; Greenville, NC. Journal of Environmental Hydrology 18 (6):1-22.
O’Driscoll, M., and DeWalle, D. 2010. Seeps regulate stream nitrate concentration in a forested Appalachian catchment. Journal of Environmental Quality 39:420-431.
Humphrey, C., Deal, N., O’Driscoll, M., and Lindbo, D. 2010. Characterization of on-site wastewater nitrogen plumes in shallow coastal aquifers, North Carolina. P. 949-958 in: Proceedings of the World Environmental and Water Resources Congress, May 16-20, Providence, RI.
O’Driscoll, M., Soban, J., and Lecce, S. 2009. Stream channel enlargement response to urban land cover in small Coastal Plain watersheds, North Carolina. Physical Geography 30(6): 528-555.
Hardison, E., O’Driscoll, M., DeLoatch, J., Howard, R., and Brinson, M. 2009. Urban land use, channel incision, and riparian water table decline along Coastal Plain streams, North Carolina. Journal of the American Water Resources Association 45(4):1032-1046.
O’Driscoll, M.A. and Parizek, R.R. 2008. Geological controls on seasonal pool hydroperiod in a karst setting. WETLANDS, Vol. 28, No. 4, December 2008, pp. 1004–1017.
M.A. and DeWalle, D.R. 2008. Groundwater Seepage and Dissolved Organic Carbon
Flux in an Appalachian Catchment. p. 1-6. In: Riparian Ecosystems and Buffers:
Working at the Water’s Edge. American Water Resources Association 2008 Summer
Specialty Conference Proceedings, Virginia Beach , VA.
O’Driscoll, M.A. and DeWalle, D.R. Stream-air temperature relations to classify stream-ground water interactions in a karst setting, central Pennsylvania , USA . 2006. Journal of Hydrology 329:140-153.
O’Driscoll, M.A., S.R. Riggs, D.V. Ames, M. M. Brinson, D.R. Corbett, and D. J. Mallinson. 2006. Geomorphic, Ecologic, and Hydrologic Dynamics of Merchants Millpond, North Carolina . In “Hydrology and Management of Forested Wetlands." Proceedings of The American Society of Agricultural and Biological Engineers International Conference on Hydrology and Management of Forested Wetlands. New Bern , North Carolina , USA -April 8-12, 2006. Pp. 423-431.
DeWalle, D.R., Buda, A.R., Eismeier, J.A., Sharpe, W.E., Swistock, B.R., Craig, P.L., and O’Driscoll, M.A. 2005. Nitrogen cycling on five headwater forested catchments in mid-Appalachians of Pennsylvania . Pp. 29-36. In: Dynamics and Biogeochemistry of River Corridors and Wetlands (IAHS-294). Eds: Heathwaite,L., Webb,B., Rosenberry, D., Weaver, D., and Hayashi, M. International Association of Hydrological Sciences, Oxfordshire , UK .
O’Driscoll, M.A., DeWalle, D.R., McGuire, K.J., and Gburek, W.J. 2005. Seasonal 18O variations and groundwater recharge for three landscape types in central Pennsylvania , USA. Journal of Hydrology. 303: (1-4):108-124.
O’Driscoll, M.A., and DeWalle, D.R. 2004. Stream-air temperature relationships as indicators of ground water inputs. Watershed Update 2 (6). An online publication of the American Water Resources Association. http://www.awra.org/committees/techcom /watershed/watershed.html.
O’Driscoll, M.A. and Parizek, R.R. 2003. The hydrological catchment area of a chain of karst wetlands in central Pennsylvania. Wetlands 23: (1):171-179.
O’Driscoll, M.A. and DeWalle, D.R. 2002. Episodic stream/aquifer interactions in a Pennsylvania urban/agricultural watershed. Pp. 535-540. In: Ground Water/Surface Water Interactions. Kenny, J.F. (ed.) AWRA 2002 Summer Specialty Conference Proceedings, American Water Resources Association, Middleburg , Virginia .