Search Results - "Dupont, J.P"

Hamiltonian Monte Carlo algorithm for the characterization of hydraulic conductivity from the heat tracing data by Djibrilla Saley, A., Jardani, A., Soueid Ahmed, A., Antoine, R., Dupont, J.P.

“…•A heat tracer experiment is performed to image the hydraulic conductivity.•Hamiltonian Monte Carlo algorithm is implemented to invert the temperature…”
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Intensive exploitation of a karst aquifer leads to Cryptosporidium water supply contamination by Khaldi, S., Ratajczak, M., Gargala, G., Fournier, M., Berthe, T., Favennec, L., Dupont, J.P.

“…Groundwater from karst aquifers is an important source of drinking water worldwide. Outbreaks of cryptosporidiosis linked to surface water and treated public…”
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Quantitative Interpretation of Specific Conductance Frequency Distributions in Karst by Massei, N, Mahler, B.J, Bakalowicz, M, Fournier, M, Dupont, J.P

“…Use of the coefficient of variation (CV) of specific conductance has been a simple and popular approach to classifying karst aquifers; however, problems with…”
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Stochastic joint inversion of hydrogeophysical data for salt tracer test monitoring and hydraulic conductivity imaging by Jardani, A., Revil, A., Dupont, J.P.

“…► Fully coupled inversion of hydrogeochemical and geoelectrical data. ► Hydraulic conductivity tomography from the joint inversion of hydrogeophysical data. ►…”
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Redox potential distribution of an organic-rich contaminated site obtained by the inversion of self-potential data by Abbas, M., Jardani, A., Soueid Ahmed, A., Revil, A., Brigaud, L., Bégassat, Ph, Dupont, J.P.

“…•Self potential measurements were done at a hydrocarbon contaminated site.•A groundwater flow model was calibrated to remove the electrokinetic SP signal.•The…”
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Specific storage and hydraulic conductivity tomography through the joint inversion of hydraulic heads and self-potential data by Ahmed, A. Soueid, Jardani, A., Revil, A., Dupont, J.P.

“…•Self-potential data can be jointly inverted with head data.•The two types of data have complementary sensitivity map.•The reconstruction of the hydraulic…”
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SP2DINV: A 2D forward and inverse code for streaming potential problems by Soueid Ahmed, A., Jardani, A., Revil, A., Dupont, J.P

“…The self-potential method corresponds to the passive measurement of the electrical field in response to the occurrence of natural sources of current in the…”
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Image-guided inversion in steady-state hydraulic tomography by Soueid Ahmed, A., Zhou, J., Jardani, A., Revil, A., Dupont, J.P.

“…•Image-guided inversion and interpolation applied to hydraulic tomography.•Hydrofacies boundaries provided by georadar or some prior geological expertise.•The…”
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Geostatistical inverse modeling of the transmissivity field of a heterogeneous alluvial aquifer under tidal influence by Jardani, A., Dupont, J.P., Revil, A., Massei, N., Fournier, M., Laignel, B.

“…► The effect of tidal force is used to estimate transmissivity. ► The inversion is developed into a stochastic framework. ► The new approach is tested with…”
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HT2DINV: A 2D forward and inverse code for steady-state and transient hydraulic tomography problems by Soueid Ahmed, A., Jardani, A., Revil, A., Dupont, J.P.

“…Hydraulic tomography is a technique used to characterize the spatial heterogeneities of storativity and transmissivity fields. The responses of an aquifer to a…”
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Investigating transport properties and turbidity dynamics of a karst aquifer using correlation, spectral, and wavelet analyses by Massei, N., Dupont, J.P., Mahler, B.J., Laignel, B., Fournier, M., Valdes, D., Ogier, S.

“…In many places throughout the world, drinking water is frequently contaminated by turbidity. Such turbidity, however, as representative of particle transport,…”
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Detection of preferential infiltration pathways in sinkholes using joint inversion of self-potential and EM-34 conductivity data by Jardani, A., Revil, A., Santos, F., Fauchard, C., Dupont, J.P.

“…ABSTRACT The percolation of water in the ground is responsible for measurable electric potentials called self‐potentials. These potentials are influenced by…”
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A spatial analysis of structural controls on Karst groundwater geochemistry at a regional scale by Valdes, Danièle, Dupont, Jean-Paul, Laignel, Benoît, Ogier, Sylvie, Leboulanger, Thierry, Mahler, Barbara J.

“…The coupled spatial investigation of the geometrical and geochemical properties of a chalk karstic aquifer provides information on the degree to which geologic…”
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Investigation of karst hydrodynamics and organization using autocorrelations and T–Δ C curves by Valdes, Danièle, Dupont, Jean-Paul, Massei, Nicolas, Laignel, Benoıˆt, Rodet, Joël

“…In karst systems, rain events often result in a decrease in conductivity (a tracer of dissolved phase transport) and an increase in turbidity (a tracer of…”
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Assessment of direct transfer and resuspension of particles during turbid floods at a karstic spring by Massei, N, Wang, H.Q, Dupont, J.P, Rodet, J, Laignel, B

“…Turbid water can be the source of important sanitary problems in karstic regions. It is the case of the Pays de Caux, in Haute Normandie, where the main…”
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Transfer of bacteria-contaminated particles in a karst aquifer: evolution of contaminated materials from a sinkhole to a spring by Dussart-Baptista, L., Massei, N., Dupont, J.-P., Jouenne, T.

“…The transport of particle-associated bacteria during rain events in karst waters has been investigated. In this aim, we studied the correlations between water…”
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Investigation of Transport Processes inside Karst Aquifer by Means of STATIS by Fournier, M., Motelay-Massei, A., Massei, N., Aubert, M., Bakalowicz, M., Dupont, J.P.

“…Environmental data sets are often multidimensional and consequently display complex structure. This article shows the limitations of principal component…”
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Recurrent recovery of Pseudomonas oryzihabitans strains in a karstified chalk aquifer by Dussart-Baptista, L., Bodilis, J., Barray, S., Frébourg, N., Fournier, M., Dupont, J.-P., Jouenne, T.

“…Pseudomonas oryzihabitans is an uncommon pathogen that may cause catheter-associated infections, particularly in immunocompromised patients. Although it has…”
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Transport of suspended solids from a karstic to an alluvial aquifer: the role of the karst/alluvium interface by Massei, N, Lacroix, M, Wang, H.Q, Mahler, B.J, Dupont, J.P

“…This study focuses on the coupled transport of dissolved constituents and particulates, from their infiltration on a karst plateau to their discharge from a…”
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Microgranulometric approach to a chalk karst, western Paris Basin, France by Lacroix, Michel, Rodet, Joël, Wang, Huaqing, Laignel, Benoit, Dupont, Jean Paul

“…By definition, karst is the result of dissolution, and if the rock is not completely soluble, residues will remain (“acquired” particles). These insoluble…”
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