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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. ...

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E-book

Universite Montpellier II, Montpellier
2008, p. 1-288
Interactions hydrodynamiques surface/souterrain en milieu karstique [Surface water/Groundwater hydrodynamic interactions in karst watersheds], PhD Thesis
Abstract:

Ce travail de these s’inscrit dans la problematique generale de la caracterisation de l’alea inondation. Plus precisement, cette etude cherche a caracteriser l’influence des eaux souterraines sur la genese et la propagation des crues en surface dans les cas d’un bassin versant a forte composante karstique. Le site experimental du bassin versant du Coulazou, riviere temporaire qui traverse le massif karstique du Causse d’Aumelas a l’Ouest de Montpellier a ete retenu pour etudier de maniere approfondie les interactions entre les ecoulements de surface et les ecoulements souterrains en situation de crue.

L’etude hydrodynamique de ce systeme karst/riviere s’appuie sur un dispositif experimental adapte a l’observation des phenomenes hydrologiques (pluie, ruissellement) et hydrogeologiques (piezometrie en forage et dans les drains karstiques, suivi hydrodynamique des exutoires du systeme) tres rapides et tres intenses. La dynamique de ces ecoulements est liee au contexte climatique Mediterraneen mais aussi aux structures de drainage en surface et en souterrain qui permettent un transfert et un transit tres rapide des eaux au sein du systeme karst/riviere.

Une description hydrodynamique classique est completee par une approche fonctionnelle des echanges karst/riviere dans le but de mieux comprendre le fonctionnement hydrodynamique d’un tel systeme et de mettre en avant des indicateurs utilisables dans une demarche de modelisation des echanges surface/souterrain. Un premier modele est presente dans la derniere partie de ce document.

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This work aims at assessing the flooding hazard. More precisely, the study focuses on the influence of groundwater on the genesis and propagation of surface flows in the case of a highly karstified watershed. The experimental site of the Coulazou River, a temporary River which crosses the karstified formation of the Causse d’Aumelas (western Montpellier) has been selected to study hydrodynamic interactions between surface flows and groundwater flows during flood.

The hydrodynamic study of this karst/River system is based on a suitable experimental monitoring of both fast and intense hydrological (rain, runoff) and hydrogeological (water level in wells and karst drains, discharge measurements at the main outlets of the system) phenomenon. The specific hydrological response of this watershed is due to the Mediterranean climate but also to surface and underground drainage structures which allow very fast water flows within the karst/river system.

A common hydrodynamic description is followed by a functional approach of karst/river exchanges in order (i) to better understand the hydrodynamic behaviour of such a system and (ii) to highlight some indicators that can be used in a modelling approach. A first conceptual model of surface water/groundwater exchanges in karst terranes is presented in the latter part of the manuscript.