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PORTAIL D'INFORMATION GÉOGRAPHIQUE

On the necessity of applying a rotation to instantaneous velocity measurements in river flows

Auteur(s) et Affiliation(s)

ROY, A.G.
Dept. de Géographie, Université de Montréal, Montréal, Québec, Canada


Description :
The first part of this paper reviews the problem to correct instantaneous velocity measurements by applying a rotation. However, in fluvial geomorphology, the studied flow is often complex and streamlines may exhibit significant changes from one point of the measurement to the other, and applying a rotation complicates the situation more than it simplifies it. The second part examines the question of velocity data correction in complex flows using a field example of the turbulent boundary layer over a very rough gravel bed and a laboratory example taken from flow at river channel confluence.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 1996, vol. 21, n°. 9, p. 817-827, Collation : Illustration, Références bibliographiques : 29 ref.

Date :
1996

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais
Droits :
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