Doline ; Dépression karstique ; Eau souterraine ; Ecoulement ; Géographie de l'Océanie ; Hydrogéologie ; Hydrologie ; Hydrologie karstique ; Karst ; North Island ; Nouvelle-Zélande ; Réseau karstique souterrain ; Waitomo
sous-cutané, écoulement dans le karst, écoulement vadose et percolation. Ce modèle permet de comprendre l'hydrologie des dépressions karstiques polygonales dans le district de Waitomo en Nouvelle-Zélande.
Crecida ; Cuenca hidrográfica ; Eslovenia ; Gestión del riesgo ; Hidrogeología ; Karst ; Lluvia recia ; Poljé ; Precipitación ; Red de drenaje ; Riesgo natural
In the case of particularly extreme hydrological conditions in the autumn of 2008, detailed analyses of the recharge-discharge regime and the interrelationship of flooding on two typical and connected karst poljes (Cerknica and Planina
) of the Classical Karst region were done. Daily precipitation, discharge, and water level values from several monitoring sites were analyzed and cross-correlated, and additional hydrological analyses were done using a digital elevation model in order to acquire
water level increase and decrease intensity, flood water volumes, and the extent of flooding and to understand the conditions controlling karst flooding. The results reveal that the hydrological functioning of the studied karst poljes is influenced
by the hydrogeological and temporary hydrological conditions in the catchment area.
[b2] Karst Research Inst. SRC SASA, Postojna, Slovenie
Examen pour des cours d'eau moyens et grands avec différents types de lits fluviaux, en particulier dans les régions de karst fermé (russe) et de karst clastique. Les valeurs de toutes les propriétés morphométriques et hydrauliques correspondent aux
Latest research on karst waters in Slovenia and their significance
Eau souterraine ; Géodiversité ; Hydrogéologie ; Karst ; Nappe aquifère ; Protection des sites ; Slovénie ; Système d'information géographique ; Série chronologique ; Traceur
Aquifer ; Geodiversity ; Geographical information system ; Hydrogeology ; Karst ; Site preservation ; Slovenia ; Time series ; Tracer ; Underground water
Agua subterránea ; Capa acuífera ; Eslovenia ; Geodiversidad ; Hidrogeología ; Karst ; Protección de sitios ; Serie cronológica ; Sistema de información geográfica ; Trazador
In this paper an overview on recent research on karst waters in Slovenia is presented. In recent years a great emphasis was given to the investigation of water flow and transport in karst aquifers and questions regarding the protection of karst
water. In paper, the results of a series of studies, such as tracer tests, GIS methods, hydrological time series analysis are discussed, as well as their contribution to the scientific knowledge. - (IKR)
Le karst de Nahanni est le karst de haute latitude connu le plus complexe. La température moyenne annuelle y est de 45 C et les précipitations annuelles sont de 566 mm. Une très forte averse en été 1972 (224 mm) a conduit à l'inondation des poljés
du nord et le Lac Raven a vu son niveau monter de 49 m. Les moyennes hivernales de neige, correspondant à 213 cm, ne conduisent pas à des inondations prolongées comme on en observa en été 1972. L'activité hydrologique complexe de ce karst subarctique
California ; Discharge ; Hydrochemistry ; Hydrology ; Instrumentation ; Karst ; Meltwater ; Mountain ; Research technique ; Seasonal variability ; United States of America
California ; Débit ; Eau de fonte ; Etats-Unis ; Hydrochimie ; Hydrologie ; Instrumentation ; Karst ; Montagne ; Technique de recherche ; Variabilité saisonnière
The aim of this research is twofold : to develop an accurate assessment of long-term solution processes in the Marble Mountains (California) subalpine karst, under modern conditions as opposed to the glaciokarstic conditions significant in the past
; and to understand the seasonal and episodic nature of hydrologic and solution processes, in relation to soil CO2 flux and hydrologic events of snowmelt and precipitation. An automated data-logger installation designed to perform under difficult conditions has
provided 4 years data at a 2-hour sampling interval of electrical conductivity, water level and temperature at the Marble Mountains karst resurgence.
with classical hydrogeological monitoring tools in order to investigate the relationship between current karst deformation and hydrology. The best correlation between hydrology and tilts is observed for the deep aquifers. Finally, the long term variations in tilt
The astronomical and geodetic observatory OCA, located on the karst plateau of Calern (Caussols, France), has been monitoring earth deformation for several years. Two medium baseline tiltmeters have been installed in a shaft in 2007, along
and water table show a very good correlation The relationship between current hydrological deformations and tectonics is also analyzed; broken and shifted speleothems in the shafts indicate a general shift of the plateau towards the south.
in the bulk chemistry of the karst spring waters which feed the Greek, although deposition at the microenvironmental level may be encouraged by biological factors. The dam has dramatically altered the hydrology and geomorphology of the area, transforming
Indarri Falls is a spectacular travertine dam which impounds Lawn Hill Creek, a perennial karst stream draining the Barkly Tableland in northwest Queensland, Australia. Carbonate precipitation at the Falls is favoured by downstream changes
Hydrology and hydrochemistry of the Caves Branch karst, Belize in Special issue.
Belize ; Dureté de l'eau ; Géochimie ; Géographie de l'Amérique ; Hydrochimie ; Hydrogéologie ; Hydrologie karstique ; Karst ; Qualité de l'eau ; Roche carbonatée ; Régime hydrologique ; Source ; Zone intertropicale
Une importante source sortant de calcaires crétacés, à Belize montre une relation positive entre le débit et la concentration de substances en solution. Sous un karst à dolines, le système hydrologique est constitué d'eau de surface allogène et de
futures devraient conduire à des descriptions systématiques du karst au niveau planétaire avec identification et typologie des anomalies| étude des limites et du développement des processus dans des conditions données| applications à l'utilisation du sol
Environmental degradation ; Heavy metals ; Hydrology ; Karst ; Mine ; Missouri ; Springs ; Structural geomorphology ; United States of America ; Water pollution
The karst region of southeastern Missouri, which contains North America's largest springs and a rich biota, has its natural attributes threatened by mineral leasing for lead mines whose tailings pollute water. A classic environemntal conflict