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Jeannin, Pierre-Yves
Nom
Jeannin, Pierre-Yves
Affiliation principale
Email
pierre-yves.jeannin@unine.ch
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Voici les éléments 1 - 10 sur 20
- PublicationAccès libreL’eau, sculptrice sur pierre(2004-08-25)
- PublicationMétadonnées seulementThe VULK analytical transport model and mapping method(2004)
; ; ; ; - PublicationMétadonnées seulementFrom a conceptual model of karst hydrological systems to water-vulnerability mapping(1999)
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- PublicationMétadonnées seulementSpatial variability of groundwater chemistry within a karst aquifer(2000)
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- PublicationMétadonnées seulement
- PublicationMétadonnées seulementVulnerability assessment in karstic areas: validation by field experiments(2004)
; - PublicationMétadonnées seulement
- PublicationMétadonnées seulementA deterministic approach to the coupled analysis of karst springs' hydrographs and chemographs(2003)
; During the chemically based recession flow phase of karstic springs the carbonate (dissolved limestone) concentration can be expressed as negative power of the flow rate. The empirically determined Conc/Q relationship allows two parameters (alpha and A) to be defined, of which one (alpha) depends on the geometric dimensions of the saturated (submerged) karstic network. In this paper we present a deterministic model which simulates the concentration of carbonate at the outlet of a network of circular rectilinear conduits as a function of flow rate. This model, based on hydraulic principles and the calcite dissolution kinetics, allows the sensitivity of the alpha and A parameters to be studied under different chemical, physical and geometric scenarios. Simulation results show that A is a function of the calcite saturation concentration, whereas alpha depends on the spatial dimensions of the karstic network (void length and aperture). The deterministic model results were applied to real karstic systems to evaluate the geometric dimensions of submerged karstic networks. (C) 2002 Elsevier Science B.V. All rights reserved.