A method for analysing longitudinal variations in cross-sectional shape and channel slope is developed and demonstrated with an application to the Wimmera River, Australia. The method involves characterising the geometry and spatial location
of individual cross-sections using 4 parameters and then conducting statistical analyses of the parameters from a set of cross-sections. The application to the Wimmera River identifies longitudinal trends and variability in cross-section characteristics
Cours d'eau ; Faille ; Géométrie hydraulique ; Japon ; Profil longitudinal ; Tectonique
This paper examines the characteristics of small offset streams in Japan, through the analysis of planform channel course geometry and longitudinal profiles measured in the field. Some configurations characteristic to the deformation types still
remain in their longitudinal profiles with various degrees of fluvial adjustment as long as the fault activity continues.
The rivers in Japan and Taiwan lying in a warm-humid climatic region and on island arcs with violent crustal movement have markedly large erosion rates and are today not at grade. Nevertheless most of the longitudinal profiles of the rivers
are described by either exponential or power functions, both of which have been proposed for graded rivers. Using the coefficients of the functions best fitting to the longitudinal profiles, the stages in morphological development of the profiles are discussed
Flume experiments, in which the middle section of an erosion channel is displaced horizontally, have been conducted to assess the response of streams to horizontal displacement by a strike-slip fault. The experimental erosion channel was developed
in a mixture of sand and clay, at the Hydro-Geomorphology Laboratory, Tokyo Metropolitan University, Japan. Downstream degradation and upstream aggradation as a response to horizontal displacement by a strike-slip fault cause local convexity in the longitudinal
profile. The trace of this convexity remained in the roughly continuous longitudinal profile for a long time.
Morphological characteristics of longitudinal profiles of rivers in the South Island, New Zealand
Alluvial plain ; Altitude ; Coastal environment ; Drainage network ; Fluvial processes ; Longitudinalsection ; Mathematical model ; Mountain ; New Zealand ; Regression analysis ; Relief ; South Island ; Stream ; Suspended load
Altitude ; Analyse de régression ; Charge en suspension ; Cours d'eau ; Fluviatile ; Littoral ; Modèle mathématique ; Montagne ; Nouvelle-Zélande ; Plaine alluviale ; Profil longitudinal ; Relief ; Réseau de drainage ; South Island
In this paper, morphological characteristics of longitudinal profiles of rivers are analyzed in relation to mathematical functions in the South Island of New Zealand, and their regional characteristics are examined in relation to geomorphological
Geomorphological evolution of longitudinal river profiles in the Carpathians
Carpathian Mountains ; Channel geometry ; Drainage network ; Longitudinalsection ; Mathematical model ; Mountain ; Romania ; Stream ; Tectonics ; Vertical movement
Carpates ; Concavité ; Cours d'eau ; Géométrie hydraulique ; Modèle mathématique ; Montagne ; Mouvement vertical ; Profil longitudinal ; Roumanie ; Réseau de drainage ; Tectonique
. They demonstrate that age has no influence on the form of the longitudinal profiles for the rivers on the exterior side of the Carpathians. This is because tectonic uplift was important, and this phenomenon is still present today.
Longitudinalsection ; Pedagogy ; Practical work ; Teaching of geography
Enseignement de la géographie ; Profil longitudinal ; Pédagogie ; Travaux pratiques
Using a test of a hypothesis on the differences in the shape of longitudinal stream profiles between humid and arid regions, the AA. describe a class project (that can be used at any student level) to teach the nature of scientific inquiry
Bassin-versant ; Coulée boueuse ; Cours d'eau ; Inondation ; Japon ; Pente de versant ; Profil longitudinal ; Risque naturel ; Transport sédimentaire
This paper examines first the segmentation of a river course based on the hazard types as characterized by sediment transport processes. Second, the sediment transport processes controlled by the shape of longitudinal profile of the river
are discussed. Third, the relationship between the shape of the longitudinal profile and the relief in the drainage basin is examined. And finally, how the distribution of relief in a drainage basin controls the distribution of hazard types is discussed.
This paper concentrates on monitoring and the evaluation of the restored Sviňovický brook channel. Repeated measurement of the cross-section and longitudinal profiles of the channel in connection with the rainfall and run-off events which have
L'A. étudie successivement : 1) la conception de l'évolution du profil longitudinal et transversal d'un ravin, 2) une méthode de calcul de l'érosion du fond et des bords d'un ravin, 3) l'évolution du profil transversal d'un ravin, 4) les calculs de
la transformation du profil longitudinal d'un ravin, 5) la vérification du modèle sur la base des données d'observation du développement du ravin Brouk Krik de 1838 à 1992 (bassin du fleuve Yass dans le sud-est de l'Australie).
En se basant sur des données obtenues sur des rivières de la Plaine Huanghuaihai en Chine, étude du mécanisme de la formation du profil longitudinal concave des plaines alluviales. Selon l'A., la concavité du profil peut être considérée comme une
L'A. étudie l'équation du profil longitudinal de cours d'eau élaboré par N.I. Makkaveev et propose une version nouvelle prenant en compte la taille de l'alluvion. Les variétés dans le modelé du profil régularisé sont discutées, ainsi que les
This paper presents an effort to link a field-based study with surface exposure dating techniques to understand river longitudinal profile evolution. The study was aimed at improving the understanding of the rates and processes governing bedrock