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(Article of periodic en Anglais - 2009)

Document title

Digital mapping of riverine waterway hydrodynamic and geomorphic features

Authors(s) and Affiliation(s)

HAUET A. (1 2) ; MUSTE M. (2) ; HO H.-C. (2) ;
(1) EDF-DTG, CHMPMC, Toulouse, FRANCE
(2) IIHR-Hydroscience and Engineering, Univ., Iowa, ETATS-UNIS

Abstract

This paper proposes an innovative, non-intrusive method for mapping waterway characteristics in riverine areas. The technique uses photogrammetry to provide quantitative information about the dry area in the vicinity of the waterways (banks and floodplain) and image processing algorithms to characterize the flow. Riverside images of a riverine area are decomposed into quasi-planar areas and ortho-rectified and re-assembled to obtain a panoramic ortho-view of the area of interest. Morphological features of interest (such as river bank positions, flood plain edges, mud deposits, vegetation and erosion patterns) are then identified on the ortho-view and mapped digitally. Image sequences of the river flow are recorded, allowing a surface velocity analysis to be obtained through Large Scale Particle Image Velocimetry (LSPIV). Finally, the mapped elements and the surface velocities are displayed together in a GIS-like visualization. Through the presentation of a case study of a flood event at a culvert site, this paper demonstrates the capability of the technique to monitor characteristics of waterways over time

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2009, vol. 34, no2 [pp. 242-252]

Bibliographic references : 1 p.

Collation : 13 fig.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1709

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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