Bank erosion in fifteen tributaries in the glaciated Upper SusquehannaBasin of New York and Pennsylvania
Analyse isotopique ; Bassin-versant ; Erosion des berges ; Erosion des sols ; Etats-Unis ; New York State ; Pennsylvania ; Sol cultivé ; SusquehannaBasin ; Traceur ; Transport sédimentaire
settlement-era mill dams on sediment storage and bank erosion, and compare sediment-generating processes to those previously documented for the southern Susquehannabasin.
The AA. examine the contribution of bank erosion in a suite of 15 rural tributaries in the glaciated Upper Susquehanna. They utilize a relatively simple method of fingerprinting sediment sources by comparing the concentrations of the nuclear bomb
Application of stream ordering to the Ardeche Riverbasin, southern France. Quantitative relief classification in the Ardeche Riverbasin, southern France
Ardèche ; Ardèche, bassin ; Bassin-versant ; Classification ; Cours d'eau ; France ; Géographie de l'Europe ; Géomorphométrie ; Ordonnancement ; Relief ; Rhône, bassin ; Rhône-Alpes ; Réseau de drainage
Reservoirs alter monthly and annual discharge quantities in the Sacramento RiverBasin of northern California and this practice obscures the natural variability of river discharge. - (DWG)
Action anthropique ; Bassin-versant ; Biogéochimie ; Brésil ; Cours d'eau ; Déforestation ; Ecosystème ; Géographie physique ; Randônia ; Rio Madeira ; Transport sédimentaire
The AA. develop an overall view of the biogeochemical behavior of the Madeira river drainage basin, in Rondonia state. Some parameters discussed here show a possible anthropogenic influence on the region, as for instance the level of ion
concentration present in water from the Jaru and Jiparana basins and the highest deforestation rate occurring in these basins.
Shifting river management toward salmon restoration in the Columbia Riverbasin
Aquaculture ; Economic impact ; Energy ; Power station ; Resource management ; Riverbasin ; Stream ; United States of America
Aquaculture ; Bassin fluvial ; Centrale électrique ; Columbia ; Cours d'eau ; Energie ; Etats-Unis ; Gestion des ressources ; Impact économique ; Saumon
The Columbia RiverBasin is the site of a conflict over two resources : hydroelectricity and Pacific salmon. Since 1982, the Pacific Northwest Power Planning Council has endeavored to mediate the conflict by implementing a water budget measure
In this study, an effort has been made to elucidate the effect of changing human activities and precipitation on land accretion of the Yellow River delta, to provide a stronger basis for environmental management in the Yellow River drainage basin
Spatial and temporal variation of runoff of Red RiverBasin in Yunnan
Années 1960-2000 ; Bassin-versant ; Changement climatique ; Chine ; Cours d'eau ; Donnée climatique ; Ecoulement ; Evaporation ; Fonction corridor-barrière ; Montagne ; Précipitation ; Système d'information géographique ; Température ; Vallée
This paper studies the variation of runoff of Red RiverBasin and discusses the influence of corridor-barrier functions of valleys and mountains on variation of runoff by using GIS and statistic methods based on the monthly precipitation
, temperature and evaporation data from 1960 to 2000 at 32 meteorological stations in Red RiverBasin, and the annual runoff data of Yuanjiang River, Lixian River and Panlong River from 1956 to 2000. These 3 riverbasins are contrasted. Results and discussion.
[b1] Asian International Rivers Center, Yunnan University, Kunming, Chine
Stream transformation index as an identification tool for the river network critical elements from the viewpoint of the flood risk
Czech Republic ; Flood ; Human impact ; Methodology ; Riverbasin ; Spatial distribution
Action anthropique ; Bassin fluvial ; Crue ; Distribution spatiale ; Méthodologie ; Sázava ; Tchèque république
. The methodology has been applied to the Sázava riverbasin in the Czech Republic, hit by the extreme flood from snow melt in 2006. - (EN)
The paper presents a quantitative method for analysis and evaluation of the intensity and structure of anthropogeneous transformation of the river network and its spatial distribution. The Stream Transformation Index is derived based on them
subsequently, allowing for overall quantitative evaluation of the river network transformation intensity, and identification of critical elements in the river network from the viewpoint of potential affecting of the course and consequences of floods
Bassin-versant ; Environnement ; Hydrologie ; Modèle ; Protection de l'environnement ; Ressource en eau ; Slovénie ; Sotla
We used the integred model of geographical study of the environment and its components as a basis of our riverbasin study, with the purpose of informing the public and environment decision makers about the importance of preserving good condition
of water resources. The methodology, which is based on the study of mutual correlation between natural characteristics of the riverbasin, the activities in the riverbasin and the quality of water, includes the hydrogeographical study of the riverbasin
, the establisment of environmental indicators for the protection of the riverbasin, and the foundation of ten research points fo monitoring the condition of water resources. We chose the Sotla's riverbasin for our study, but the model can also be transferred
The spatial organization and scaling properties of a number of physical variables in riverbasins are analyzed within the framework of the multifractal formalism using data from digital elevation maps. The analysis of nine very different basins
in the United States shows that the multifractal spectra for each of the variables are very similar across basins, revealing a common structure of organization. This structure is compared to networks generated with Scheidegger's stochastic model of riverbasins
Sediment balance and delivery in a humid tropical urban riverbasin : the Kelang River, Malaysia
Bassin-versant ; Bilan sédimentaire ; Charge en suspension ; Erosion des sols ; Malaisie ; Utilisation du sol ; Zone intertropicale ; Zone urbaine
The paper discusses the sediment balance and transport characteristics of an urban riverbasin in the humid tropics. Soil erosion is estimated by dividing the basin into sectors and using the Universal Soil Loss Equation to calculate erosion in each
Czech Republic ; Elbe ; Hydrology ; Riverbasin ; Water pollution ; Water quality ; Years 1990-99
Années 1990 ; Bassin fluvial ; Elbe ; Hydrologie ; Pollution de l'eau ; Qualité de l'eau ; Tchèque république
In the course of 90s, the Czech part of Elbe RiverBasin underwent a significal change in the quality of surface water. The scope and speed of such water quality changes is unprecedented in the Czech as well as in the Central European perspective
. Decrease in the pollution is however limited to the Elbe-River and its main tributaries. It is the area of small water-courses that has to be now in the centre of attention. - (MS)
Verneplan for vassdrag National plan for protecting riverbasins from power development
Aménagement hydraulique ; Bassin-versant ; Cours d'eau ; Energie hydraulique ; Géographie de l'Europe ; Géomorphodynamique ; Géomorphologie appliquée ; Norvège ; Protection de la nature
between individual rivers and riverbasins in their totality. As for the rivers, three queries are asked| whether the river is apt for serving as (1) a historical documentation (i.e. contains sedimentations or landforms which will help in interpreting
. The protection of riverbasins is considered to be of greater importance. They will be classified as to what degree they are (1) typical for the morphology of their region, (2) suitable for references (comparing the evolution of harnessed with untouched basins
The A. is a member of Kontaktutvalget for vassdragsreguleringer, a committe asked to document which rivers are of physical scientific value and should therefore be protected from power development. In its evaluations, the committe distinguishes