Floodplain sedimentation during an extreme flood : the 1999 flood on the TarRiver, eastern North Carolina
This paper examines floodplain sedimentation following the 1999 flood of the century on the TarRiver. Hurricane Floyd made landafall just 10 days after Hurricane Dennis in September 1999. The AA. used suspended sediment concentrations measured
on the TarRiver from 1958-1967 to suggest that the seasonal timing and sequencing of flood events in 1999 are the most probable explanations for the minimal geomorphic impact of this extreme flood.
Bilan sédimentaire ; Conservation des sols ; Erosion des sols ; Etats-Unis ; Fluviatile ; Géographie de l'Amérique ; North Carolina ; Pollution ; Qualité de l'eau ; Sédimentation ; TarRiver
Intérêt de l'analyse du bilan sédimentaire pour 44 programmes de conservation des sols et de la qualité de l'eau. Bassin de la rivière Tar, Caroline du Nord.
Un modèle, intégrant les données relatives aux transports solides fluviaux et aux lits des régions de montagne a été étalonné en 1975 à partir des éléments fournis par l'East Fork River en Wyoming. Les résultats obtenus s'écartent de 20 à 50% des
mesures effectives dans le lit fluvial. Il semble qu'une période d'observation très longue soit nécessaire pour tarer correctement le modèle. (RFC).
Méthode utilisée dans l'étude de faisabilité de plusieurs projets de lutte contre les inondations (Grand River et Tar Creek à Miami, Oklahoma). Aide à la décision.
systems. Analysis of streamflow data in the Tar, Neuse, and Cape Fear river basins indicates that there have been no significant trends in the region that would signal an anthropogenic effect. Given the extreme nature of the precipitation, therefore
rotations in the mid-hills region of Nepal - rice-wheat on irrigated khet land, millet-maize on rain-fed bari land, and upland rice-blackgram on ancient river terraces known as tar land. Using a partial cost-benefit analysis, authors find that applications
When is a River not a River ? Consideration of the legal definition of a river for geomorphologists practising in New South Wales, Australia
Australia ; Concept ; Definition ; Environmental management ; Geomorphology ; Legislation ; New South Wales ; Perception ; River bed ; Stream ; Water resources
This paper examines why the definition of a river is an important and ongoing management issue, and outlines the development of legal definitions of river. Finally, the role of fluvial geomorphology is discussed with respect to the definition
of a river and its channel. This analysis will reveal whether the existing legislative framework adequately reflects the physical realities of rivers and watercourses so as to facilitate their conservation.
Sedimentatieverschijnselen nabij een rivier stuw op de Markrivier Sedimentation phenomena near a river dam on the river Mark
To alter the natural river behaviour, many regulation projects have been carried out on various river systems. However, until now very few studies on the reactions of the rivers to the imposed regulating systems have been undertaken. - (Author).
Channel geometry ; China ; Fluvial dynamics ; Fluvial processes ; Meander ; Model ; River bed ; Statistics ; Stream ; Stream flow
Since the anabranched river pattern is the most typical one in the middle and lower reaches of the Yangtze River (Changjiang) as well as in many other rivers in China, a systematic study on the formation cause of the anabranched river pattern has
been made in recent years, including field observations, modeling experiments in four river models under different boundary conditions, the analyses of river pattern formation and transformation etc. In this paper, some of the detailed results obtained
Some thermodynamic criteria for river channel changes
Fluvial dynamics ; Geosystem ; River bed ; Spatial variation ; Stream ; Stream flow
A theoretical model of river channel changes is presented, which shows some nonequilibrium thermodynamic criteria of a river channel to bedding and equilibrium.
Geometric properties of river cross sections and associated hydrodynamic implications in Wuhan-Jiujiang river reach, the Yangtze River
Based on measured hydrological data by using ship-mounted Acoustic Doppler Current Profiler (ADCP) instrument, the AA. analyzed shapes of river cross sections of the middle Yangtze River basin (mainly focusing on Makou and Tianjiazhen river reach
). The hydrologic data of 36 river cross sections have been successfully obtained. In this paper, the AA. try to characterize the hydrodynamic properties of river knots, associated backwater effects and their implications for flood mitigation in the middle and lower
The evolution pattern on the Yellow River delta system
The Yellow River delta is a fluvial action dominating, highly constructive sedimentary system. The evolution pattern of the delta is closely related to the hydrologic features and the suspended sediment load of the Yellow River as well as the river
mouth depositional forms and the diversion mode of the river's lower courses.
River classification for management: the geomorphology of the Sabie River in the Eastern Transvaal
Channel geometry ; Classification ; Fluvial processes ; Methodology ; River management ; South Africa ; Stream ; Transvaal
Analysis of the Sabie River has facilitated the development of a hierarchical classification suitable as a framework for fluvial research in variety of disciplines and at a veriety of scales. - (AJC)
Several Central and West-European rivers were investigated within the framework of the SCOPE/UNEP study on Carbon transport in Major World Rivers. The rivers are sampled twice a year, i.e. in August/September at low discharge and in February/March
at high discharge. Preliminary results are presented here. The rivers Meuse and Scheldt have been sampled respectively at Heusden and Temse. (LW).
Container river services and gateway ports : similarities between the Yangtza River abd the Rhine River
Ports d'accès sur le Yangtze River Delta et le Rhine-Scheldt Delta. Volumes des conteneurs de cours d'eau sur le Yangtze River et sur le Rhin. Développement du terminal intérieur. Configuration des services des cours d'eau. Acteurs de marché
Persistent and ancient rivers. Some australian examples
Australia ; Cenozoic ; Drainage network ; Geochronology ; Palaeogeography ; Palaeohydrology ; Palaeosurface ; River bed ; Stream
Rivers are positive feedback systems and, once established and dominant, tend to maintain and enhance that dominance. Thus, major rivers ought to persist. Rivers, some 60 m.y. old (Eocene), that are extant and have been continuously active since
initiation have been identified in Australia. Other rivers of equal or even greater antiquity, but with slightly chekered chronologies, also persist in the landscape, as do the ghosts of others. River of similar antiquity occur in other Gondwana landscapes.