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Speleology in Kazakhstan

Shakalov on 04 Jul, 2018
Hello everyone!   I pleased to invite you to the official site of Central Asian Karstic-Speleological commission ("Kaspeko")   There, we regularly publish reports about our expeditions, articles and reports on speleotopics, lecture course for instructors, photos etc. ...

Speleology in Kazakhstan

Shakalov on 04 Jul, 2018
Hello everyone!   I pleased to invite you to the official site of Central Asian Karstic-Speleological commission ("Kaspeko")   There, we regularly publish reports about our expeditions, articles and reports on speleotopics, lecture course for instructors, photos etc. ...

Speleology in Kazakhstan

Shakalov on 11 Jul, 2012
Hello everyone!   I pleased to invite you to the official site of Central Asian Karstic-Speleological commission ("Kaspeko")   There, we regularly publish reports about our expeditions, articles and reports on speleotopics, lecture course for instructors, photos etc. ...

New publications on hypogene speleogenesis

Klimchouk on 26 Mar, 2012
Dear Colleagues, This is to draw your attention to several recent publications added to KarstBase, relevant to hypogenic karst/speleogenesis: Corrosion of limestone tablets in sulfidic ground-water: measurements and speleogenetic implications Galdenzi,

The deepest terrestrial animal

Klimchouk on 23 Feb, 2012
A recent publication of Spanish researchers describes the biology of Krubera Cave, including the deepest terrestrial animal ever found: Jordana, Rafael; Baquero, Enrique; Reboleira, Sofía and Sendra, Alberto. ...

Caves - landscapes without light

akop on 05 Feb, 2012
Exhibition dedicated to caves is taking place in the Vienna Natural History Museum   The exhibition at the Natural History Museum presents the surprising variety of caves and cave formations such as stalactites and various crystals. ...

Did you know?

That subsidence/head-decline ratio is the ratio between land subsidence and hydraulic head decline in the coarse-grained beds of the compacting aquifer system [21].?

Checkout all 2699 terms in the KarstBase Glossary of Karst and Cave Terms

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KarstBase a bibliography database in karst and cave science.

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La Chaux-de-Fonds, Switzerland
Proceedings of the 12th International Congress of Speleology, 1997, Vol 2, p. 163-166
Parameter identification in double-continuum models applied to karst aquifers.
Abstract:
One modelling approach which proved successful in describing the groundwater flow within karst terraines is based on the double-continuum concept. This concept was first introduced by Teutsch (1988) and subsequently used by Teutsch & Sauter (1991), Sauter (1992), Lang (1995), Mohrlok (1996) and others to describe the ambivalent characteristics of karst aquifers. However, the approach has the drawback that the double-continuum model parameters can be determined only through model calibration (inverse approach), i.e. so far the model parameters cannot be related directly to physical field measurements. Therefore, in order to develop a better understanding of the physical significance of hydraulic parameters within double-continuum systems, a detailed numerical modeling study was conducted. For this purpose a number of synthetic but realistic karst aquifer network geometries were generated and analysed. The response of the karst network to recharge events was simulated using a detailed discrete fracture flow model with the resulting head and spring flow variographs being subsequently assumed as field measurements. This 'measured' data was then used for the calibration of a double-continuum model and the resulting parameters were compared to the original karst network geometry data. This comparison was used to develop mathematical/physical relationships between the discrete karst network geometry representing reality and the double-continuum parameter representation of it.