For the past two decades, hydrology and hydrogeology research at Georgia State University has focused upon the evolution of natural water systems within Georgia and the southeastern Piedmont. Dr. Seth Rose, Professor Emeritus, and his students completed numerous studies involving the utilization of isotope hydrology, particularly environmental tritium, to better estimate the residence-time of shallow ground water in Piedmont Provinces. Shallow flow systems are the source of stream base flow which is an important water resource throughout the region.
The hydrology and hydrogeology program at Georgia State has taken a leading role in studying the effects of urbanization upon the hydrology and geochemistry of stream flow within the Atlanta metropolitan region. Recent studies have focused upon better understanding major ion variation through the Upper Chattahoochee basin. We also have a strong interest in studying the chemical interactions of aqueous contaminants (particularly metals) on sediments. Currently we are involved in studying temporal variation patterns in rainfall and runoff to discern possible effects of climate change on water resources in the southeastern United States.
Dr. Luke Pangle is now focusing our Water Sciences on field studies and laboratory experiments aimed at quantifying distributions of transit times that water and conservative solutes require to move though soils, hillslopes, and catchments. The motivating question is “what is the distribution of ages (exit time – entry time) of water molecules that are discharged from landscapes into surface water bodies, and how are those age distributions controlled by ecological, geological, geomorphic, and pedologic features of the landscape?” He is also interested in research regarding the iscernment of the impacts of meteorological variability and climatic change on water balance partitioning in diverse landscape and novel applications of stable-isotope tracers in hydrological science.