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

Impact of climate change on irrigation requirements in terms of groundwater resources

Zhou, Yu ; Zwahlen, François ; Wang, Yanxin ; Li, Yilian

In: Hydrogeology Journal, 2010, vol. 18, no. 7, p. 1571-1582

Climate change affects not only water resources but also water demand for irrigation. A large proportion of the world’s agriculture depends on groundwater, especially in arid and semi-arid regions. In several regions, aquifer resources face depletion. Groundwater recharge has been viewed as a by-product of irrigation return flow, and with climate change, aquifer storage of such flow will be...

Université de Neuchâtel

Numerical modelling of Alpine deep flow systems: a management and prediction tool for an exploited geothermal reservoir (Lavey-les-Bains, Switzerland)

Sonney, Romain ; Vuataz, François-David

In: Hydrogeology Journal, 2009, vol. 17, no. 3, p. 601-616

Le site géothermal de Lavey-les-Bains (Suisse) est un système alpin d’écoulement profond dans des terrains cristallins fracturés. Les analyses acquises depuis 1973 sur les eaux souterraines montrent un processus de mélange entre une composante profonde et chaude (68°C et TDS 1.4 g/L) et une eau froide peu profonde. La production sur le nouveau puits profond P600, réalisé en 1997, a...