Mots-clés
Chenal ; Chenal de marée ; Ecoulement ; Ecoulement fluvial ; Expérimentation ; Géomorphodynamique ; Géométrie hydraulique ; Italie ; Lagune ; Mesure laser ; Méthodologie ; TopographieChannel ; Channel geometry ; Earth surface processes ; Experimentation ; Italy ; Methodology ; Pool ; Runoff ; Stream flow ; Tidal creek ; Topography ; laser measuresAlbufera ; Caño ; Caño de marea ; Escorrentía ; Escorrentíafluvial ; Experimentación ; Geometria hidráulica ; Geomorfodinámica ; Italia ; Metodología ; TopografíaBed evolution measurement with flowing water in morphodynamics experiments
Auteur(s) et Affiliation(s)
VISCONTI, F.
Dip. di Idraulica, Trasporti e Infrastrutture Civili, Politecnico di Torino, Turin, Italie
STEFANON, L.
Dip. di Ingegneria Idraulica, Marittima Ambientale e Geotecnica, Univ. di Padova, Padua, Italie
CAMPOREALE, C.
Dip. di Idraulica, Trasporti e Infrastrutture Civili, Politecnico di Torino, Turin, Italie
SUSIN, F.
Dip. di Ingegneria Idraulica, Marittima Ambientale e Geotecnica, Univ. di Padova, Padua, Italie
RIDOLFI, L.
Dip. di Idraulica, Trasporti e Infrastrutture Civili, Politecnico di Torino, Turin, Italie
LANZONI, S.
Dip. di Ingegneria Idraulica, Marittima Ambientale e Geotecnica, Univ. di Padova, Padua, Italie
Description :
A new approach for the profiling of movable sediment beds in laboratory experiments is presented. It couples a triangulation laser sensor and an ultrasonic level transmitter, and allows a non-intrusive, fast and accurate measurement of bed topography without stopping the experimental runs. The distortion of the laser beam due to the refraction at the water surface is corrected by contemporaneously measuring the elevation of the water surface through the ultrasonic level transmitter. Several tests, under either still- or flowing-water conditions, as well as increasing/decreasing water surface elevation, were carried out to evaluate the accuracy of the measurements. Finally, 2 relevant applications to movable bed experiments carried out under either lagoonal or fluvial conditions are presented that show the effectiveness of the proposed profiling technique.
Type de document :
Article de périodique
Source :
Earth surface processes and landforms, issn : 0197-9337, 2012, vol. 37, n°. 8, p. 818-827, nombre de pages : 10, Références bibliographiques : 24 ref.
Date :
2012
Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)