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Consortium of Swiss Academic Libraries

A simple solution to tunnel or well discharge under constant drawdown

Perrochet, Pierre

In: Hydrogeology Journal, 2005, vol. 13, no. 5-6, p. 886-888

Université de Neuchâtel

Assessing groundwater quality trends in pumping wells using spatially varying transfer functions

Baillieux, A ; Moeck, C ; Perrochet, Pierre ; Hunkeler, Daniel

In: Hydrogeology journal, 2015, vol. 23, p. 1449-1463

When implementing remediation programs to mitigate diffuse-source contamination of aquifers, tools are required to anticipate if the measures are sufficient to meet groundwater quality objectives and, if so, in what time frame. Transfer function methods are an attractive approach, as they are easier to implement than numerical groundwater models. However, transfer function approaches as commonly...

Université de Neuchâtel

A quantitative method for the characterisation of karst aquifers based on spring hydrograph analysis

Kovács, Attila ; Perrochet, Pierre ; Király, László ; Jeannin, Pierre-Yves

In: Journal of Hydrology, 2005, vol. 303, no. 1-4, p. 152-164

This paper presents a method for characterizing flow systems in karst aquifers by acquiring quantitative information about the geometric and hydraulic aquifer parameters from spring hydrograph analysis. Numerical sensitivity analyses identified two fundamentally different flow domains, depending on the overall configuration of aquifer parameters. These two domains have been quantitatively...

Université de Neuchâtel

Assessing the impact of thermal feedback and recycling in open-loop groundwater heat pump (GWHP) systems : a complementary design tool

Milnes, Ellen ; Perrochet, Pierre

In: Hydrogeology Journal, 2013, vol. 21, no. 2, p. 505-514

Thermal feedback and thermal recycling in open-loop groundwater heat pump (GWHP) systems occurs when a fraction of the injected water in a well doublet returns to the production well. They reflect two different mathematical representations of the same physical process. Thermal feedback assumes a constant injection temperature, while thermal recycling couples the injection and...

Université de Neuchâtel

Stochastic forecasts of seawater intrusion towards sustainable groundwater management : application to the Korba aquifer (Tunisia)

Kerrou, Jaouher ; Renard, Philippe ; Cornaton, Fabien ; Perrochet, Pierre

In: Hydrogeology Journal, 2013, vol. 21, no. 2, p. 425-440

A stochastic study of long-term forecasts of seawater intrusion with an application to the Korba aquifer (Tunisia) is presented. Firstly, a geostatistical model of the exploitation rates was constructed, based on a multi-linear regression model combining incomplete direct data and exhaustive secondary information. Then, a new method was designed and used to construct a geostatistical model of the...