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M.S. Hydrogeology

 

 

Advisor: Dr. John B. Gates


 

 

 

 

 

 

 

 

 

 

 

 

nathan.roddy.0328@gmail.com

Department of Earth and Atmospheric Sciences

University of Nebraska - Lincoln




 

Research

My research is focused on deriving the age of groundwater recharge using dissolved noble gas concentrartions as hydrogeologic tracers. My study area is located around Lake McConaughy and the southern edge of the Sand Hills in western Nebraska. The Sand Hills gives me the opportunity to date young groundwater because of the high rates of hydraulic conductivity and recharge. Because the concentration of gases is dependent on the temperature, seasonality of recharge can be determined. The sampling wells are located north of Lake McConaughy.

 




 

In addition, I will also be looking at the effects of surface water has on dating groundwater in this manner. I will use Lake McConaughy as my source of surface water. In order to fully understand the ramifications of the mixing process, I will also be examining the dissolved concentrations of noble gases in the lake water.

 

 



 

 

 

Nathan Roddy-sampling water from a windmill. Photo Courtesy of John Gates