Université de Neuchâtel

Influence of conceptual model uncertainty on contaminant transport forecasting in braided river aquifers

Pirot, Guillaume ; Renard, Philippe ; Huber, E ; Straubhaar, J ; Huggenberger, P

In: Journal of Hydrology, 2015, vol. 531, p. 124-141

Hydrogeologist are commonly confronted to field data scarcity. An interesting way to compensate this data paucity, is to use analog data. Then the questions of prediction accuracy and uncertainty assessment when using analog data shall be raised. These questions are investigated in the current paper in the case of contaminant transport forecasting in braided river aquifers. In using analog data...

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...

Université de Neuchâtel

Deterministic and probabilistic numerical modelling towards sustainable groundwater management : application to seawater intrusion in the Korba aquifer (Tunisia)

Kerrou, Jaouher ; Renard, Philippe (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2008 ; Th. 2053.

This PhD endeavours numerical groundwater modelling considering heterogeneous and uncertain hydraulic parameters. It is made of three parts. First, we investigated the effects of dimensionality and heterogeneity of the hydraulic conductivity on dispersive seawater intrusion (SWI) processes. Multiple 2D and 3D unconditional simulations of hydraulic conductivity fields sharing the same statistics...