Université de Neuchâtel

Reply to “Comment on groundwater age, life expectancy and transit time distributions in advective–dispersive systems : 1. Generalized reservoir theory” by Timothy R. Ginn

Cornaton, Fabien ; Perrochet, Pierre

In: Advances in Water Resources, 2007, vol. 30, no. 4, p. 1058-1059

We thank T.R. Ginn for his interest in our recently published article (1) on the subject of groundwater age modelling and reservoir theory. In his previous comment (2), T.R. Ginn expresses concern about some conceptual inconsistencies in the formulations presented in our work. We basically agree with the fundaments of his comments, and we wish to continue the discussion. (1) F. Cornaton and P....

Université de Neuchâtel

Direct simulation of groundwater transit-time distributions using the reservoir theory

Etcheverry, David ; Perrochet, Pierre

In: Hydrogeology Journal, 2000, vol. 8, no. 2, p. 200-208

Groundwater transit times are of interest for the management of water resources, assessment of pollution from non-point sources, and quantitative dating of groundwaters by the use of environmental isotopes. The age of water is the time water has spent in an aquifer since it has entered the system, whereas the transit time is the age of water as it exits the system. Water at the outlet of an...