Concept

Channel (geography)

Publications associées (148)

Tidal networks 3. Landscape-forming discharges and studies in empirical geomorphic relationships

In this final part of our study [Fagherazzi et al., this issue; Rinaldo et al., this issue] we propose a simple model for predicting the local peak ebb and flood discharges throughout a tidal network and use this model to investigate scaling relationships ...

1999

Tidal networks 1. Automatic network extraction and preliminary scaling features from digital terrain maps

Andrea Rinaldo

We propose a method of automatic extraction of the tidal channel network from topographic data of marsh and tidal flat lands that uses a combination of a threshold elevation and threshold curvature. Not only the location but also the area of the channel be ...

1999

Integrated sensor for continuous flow electrochemiluminescent measurements of codeine with different ruthenium complexes

Nico de Rooij

Batch and continuous-flow measurements of codeine were performed by electrochemiluminescence, using a miniaturized sensor combining transduction electrodes and a photodetector on the same silicon chip. In the case of flow measurements, a flow channel was a ...

1999

Miniature one-shot valve

Philippe Renaud

Many microvalves have already been designed and developed. Two types can be found: passive check valves and active valves. However, for some applications, it is needed to open a flow channel only once in order, for example, to trigger a mixing reaction on ...

1998

Optimal Channel Networks - a Framework for the Study of River Basin Morphology

Andrea Rinaldo

Optimal channel networks (OCNs) are dendritic structures obtained by minimizing the local and global rates of energy dissipation in a continuously fed (in space and time) plane aggregation system reminiscent, and based on the properties, of the planform of ...

1993

Minimum Energy and Fractal Structures of Drainage Networks

Andrea Rinaldo

This paper explores the similarities of digital elevation maps (DEMs) of natural river basins and optimal channel network (OCN) configurations obtained minimizing the total rate of energy expenditure in the system as a whole and in its parts. Striking simi ...

1992

A mathematical model of soil erosion and deposition processes: I. Theory for a plane land element

David Andrew Barry

The paper describes a new mathematical model of soil erosion and deposition on a plane land element. The model makes use of an approximate analytic theory of runoff on a plane assuming kinematic flow. Rates of the following simultaneously occurring erosion ...

1983

A mathematical model of soil erosion and deposition processes: II. Application to data from an arid-zone catchment

David Andrew Barry

Mathematical theory for soil erosion and deposition processes on a plane land element was applied to data on runoff and sediment concentration as a function of time for nine runoff events from a small (1.3 ha) arid watershed in Arizona. Sediment concentrat ...

1983

Graph Chatbot

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Connectez-vous pour utiliser Chat avec Graph Search