Effect of an ephemeral stream on the groundwater level and groundwater quality in an arid zone of India
Coursd'eau ; Coursd'eau intermittent ; Domaine aride ; Eau souterraine ; Géographie physique ; Hydrogéologie ; Inde ; Jalor district ; Qualité de l'eau ; Rajasthan
Relations entre le niveau piézométrique et la qualité de l'eau souterraine dans les puits situés de part et d'autre d'un coursd'eau éphémère dans le district de Jahore (Rajasthan occidental).
River channel change following dam removal in an ephemeral stream
Aménagement hydraulique ; Australie ; Barrage ; Coursdeau éphémère ; Coursd'eau ; Démolition ; Erosion fluviatile ; Lit fluvial ; New South Wales ; Niveau de base
Australia ; Base level ; Dam ; Ephemeral stream ; Fluvial erosion ; Hydraulic works ; New South Wales ; River bed ; Stream
The aim of this study is to analyse the geomorphic responses of the ephemeral Bushrangers Creek, central western New South Wales, Australia, following the 2002 removal of 15 m high dam. Comparisons of pre- and post-dam removal survey data indicate
Scaling the effects of riparian vegetation on cross-sectional characteristics of ephemeral mountain streams - a case study of Nahal Oren, Mt. Carmel, Israel
and spring of 2004 at Nahal Oren, Israel, an ephemeral mountainous stream. The AA. suggest that shrubs and trees may have a similar function in stabilizing banks via the root system, but the above-ground structure of these vegetative types has different
This study presents a detailed analysis of the distribution of one contaminant along an ephemeral stream after 55 years of sediment transport, deposition, and exchange by flash floods. Wastewater containing plutonium was discharged into the Pueblo
Stochastic generation of monthly flows for ephemeral streams
Australie ; Coursd'eau ; Coursd'eau intermittent ; Distribution log-normale à trois paramètres ; Débit mensuel ; Ecoulement ; Géographie physique ; Hydrologie mathématique ; Hydrologie stochastique ; Simulation
Discussion de six méthodes et application à huit coursd'eau australiens. Comparaison de paramètres calculés sur les séries historiques et sur les séries générées: paramètres mensuels saisonniers et paramètres mensuels généraux. Justification des
L'échantillonnage lors des crues sur les coursd'eau éphémères de zone aride est rendu difficile à cause de l'évaporation. Les A. proposent un instrument permettant un échantillonnage automatique de l'eau de crue. L'échantillon est hermétiquement
Arid area ; Arizona ; Ephemeral stream ; Grain size distribution ; River bed ; Sediment load ; Sediment transport ; Semi-arid area ; Stream ; United States of America
This paper documents the evolution of coarse bed material in Lucky Hills, a low-ordered, ephemeral watershed in southeast Arizona. The bed material is arranged in discrete patches that are differentiated from one another by their grain-size
Carrying capacity ; Comparative study ; Ephemeral stream ; Experimentation ; Flood ; Grain size distribution ; Hydrodynamics ; Israel ; Model ; Oregon ; Sediment load ; Sediment transport ; Stream ; Stream flow ; United States of America
hydrodynamic model are shown to adequately resolve the observation of the very high rates of bedload transport by flash floods in Nahal Yatir. While bedload transport rates in ephemeral and perennial rivers differ remarkably when evaluated against a pure flow
Utilise un modèle simple utilisant les paramètres du transport sédimentaire en coursd'eau éphémères pour déterminer le champ moyen de dispersion de sédiments chargés en cuivre| les différences de dispersion du cuivre dans le sédiment transporté, ou
This paper examines the case of Fountain Hills, a residential area near Phoenix, Arizona, as an example of urban impacts on a representative ephemeral channel in a dryland environment. Three specific questions are addressed : how has urbanization
Catalonia ; Channel geometry ; Degradation ; Downcutting ; Ephemeral stream ; Hydraulic works ; Longitudinal section ; River bed ; Spain ; Stream ; Urban area ; Urban growth
The case-study of the Les Arenes-Palau-Rubí rivers is a system of 2 tributaries and a main river in northeast Spain, characterized by its short length, steepness and ephemeral nature. The comparison of bed profiles since 1962 revealed an incision
The impact of wastewater flow on the channel bed morphology was evaluated in 4 ephemeral streams in Israel and the Palestinian Territories : Nahal Og, Nahal Kidron, Nahal Qeult and Nahal Hebron. Channel changes before, during and after the halting
of wastewater flow were monitored. This change is likely to have substantial implication, as the main feature of arid fluvial systems is their ephemeral nature, high magnitude infrequent flow events, and sporadic sediment transport. Within a few months, nutrient
This paper analyses the hydrological processes of flood events in three Mediterranean ephemeral streams, taking into account the peculiarities of the rainfall and morphology patterns of the study area. Daily and other detailed information (every 5
This study describes the morphological impact and the hydrological characteristics of a large flood event in a small coastal Mediterranean ephemeral stream in Mt. Carmel using the aftermath channel and floodplain morphology. The hydrological
Most of the sediment load of the Red Deer River, Alberta, Canada, is derived from a badland area which forms less than 2 per cent of the drainage basin. This paper describes results from a small instrumented ephemeral basin set up to determine
This work presents an analysis of the response to rainfall of ephemeral streams in a karst semi-arid regions of southeast of Italy by an innovative approach. The analysis is based on a 2D simulation model of the behavior of a network of ephemeral
response of ephemeral streams to the rainfall, whereas more extreme rainfall events generate quick and high discharge responses of the ephemeral streams. In addition, modeling results emphasize the non-linearity of runoff generation, in particular for some
Drainage-net control of sedimentary parameters in sand-bed ephemeral streams in Geographical approaches to fluvial processes.
Alluvion ; Analyse pétrographique ; Coursd'eau ; Fluviatile ; Géographie de l'Afrique ; Kenya ; Koobi Fora, bassin ; Lit fluvial sableux ; Monde ; Oued ; Rift Valley Province ; Réseau de drainage ; Sédimentologie
Tableau des résultats d'analyses pétrographiques d'alluvions fluviatiles dans le monde. Evaluation pour les coursd'eau éphémères, à partir du bassin sédimentaire de KoobiFora, Kenya, qui se déverse dans le lac Rudolf| analyse sédimentologique.
Sediment characteristics and stream competence in ephemeral and intermittent streams, Fairborn, Ohio in Channel processes. Water, sediment, catchment controls.
Les fines interstitielles des galets et blocs varient avec la taille du coursd'eau: pour les petits coursd'eau, limons et argiles et pour les coursd'eau plus importants sable et galets. La différence est attribuée à la contribution des mouvements
de masse aux petits coursd'eau, ce qui produit des éléments riches en argiles qui sont transportés sur de courtes distances et déposés avec les sables et galets.