Caractérisation des forçages climatiques et géomorphologiques des cinq derniers millions d'années et modélisation de leurs conséquences sur un système aquifère complexe : le bassin de Paris.

Abstract : The aim of this thesis is to investigate the response of the Paris basin aquifer system to variations in hydrodynamic boundary conditions induced by past climate and geodynamic changes over the last five million years, trying to determine if the system has kept the memory of these past changes. For this purpose, a 3D transient modelling of the Paris basin groundwater system has been developed and completed with geomorphologic and climatic scenarios. In this study, climate forcing results from a suite of paleoclimate modelling experiments using an atmospheric general circulation model with a refined spatial resolution and geomorphologic evolution is deduced from digital elevation model analysis. The resulting simulations suggest a transient state of the current system in the main aquitards of the basin and in the deep aquifers and evidence of cross formational flow direction inversion, depending on hydrodynamic properties and forcing scenarios.
Document type :
Theses
Hydrology. Université Pierre et Marie Curie - Paris VI, 2005. French


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Submitted on : Tuesday, July 4, 2006 - 3:29:15 PM
Last modification on : Tuesday, July 4, 2006 - 3:55:04 PM

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Anne Jost. Caractérisation des forçages climatiques et géomorphologiques des cinq derniers millions d'années et modélisation de leurs conséquences sur un système aquifère complexe : le bassin de Paris.. Hydrology. Université Pierre et Marie Curie - Paris VI, 2005. French. <tel-00083869>

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