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Differentiated characterization of karst aquifers: some contributions

Abstract : Because of the small radius of investigation of hydrogeological standard testing methods, the characterization of karst aquifers is still a challenge. The development of a karst conduit system introduces an element of large contrast in hydraulic conductivity in the hydraulic parameter field of a karst aquifer. It leads to complex flow patterns and transport phenomena that differ significantly from those observed in porous and fissured media. While on a local, i.e., borehole scale, the fissured matrix of karst aquifers can be regarded as a continuum, on a regional, i.e., catchment scale, the drainage of the aquifer system is controlled by the conduit system, which may have a highly anisotropic geometry. Therefore, characterization of karst aquifers requires a differentiated approach by the combination of various hydrogeological field methods or the application of large-scale tests, which cover the scale of dominant aquifer heterogeneities. Existing numerical modeling approaches can be applied for integral data interpretation on catchment scale.
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https://hal-brgm.archives-ouvertes.fr/hal-03101519
Contributeur : Myriam Chergui <>
Soumis le : jeudi 7 janvier 2021 - 10:44:28
Dernière modification le : vendredi 5 février 2021 - 03:49:06

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Tobias Geyer, Steffen Birk, Thomas Reimann, Nathalie Dörfliger, Martin Sauter. Differentiated characterization of karst aquifers: some contributions. Carbonates and Evaporites, Springer, 2013, 28 (1-2), pp.41-46. ⟨10.1007/s13146-013-0150-9⟩. ⟨hal-03101519⟩

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